/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:03:04,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:03:04,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:03:04,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:03:04,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:03:04,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:03:04,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:03:04,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:03:04,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:03:04,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:03:04,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:03:04,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:03:04,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:03:04,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:03:04,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:03:04,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:03:04,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:03:04,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:03:04,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:03:04,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:03:04,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:03:04,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:03:04,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:03:04,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:03:04,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 11:03:04,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 11:03:04,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 11:03:04,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 11:03:04,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 11:03:04,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 11:03:04,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:03:04,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:03:04,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:03:04,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:03:04,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:03:05,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:03:05,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:03:05,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:03:05,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:03:05,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:03:05,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:03:05,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 11:03:05,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:03:05,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:03:05,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:03:05,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:03:05,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:03:05,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:03:05,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:03:05,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:03:05,027 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:03:05,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:03:05,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:03:05,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:03:05,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:03:05,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:03:05,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:03:05,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:03:05,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:03:05,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:03:05,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:03:05,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:03:05,030 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:03:05,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:03:05,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:03:05,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:03:05,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:03:05,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:03:05,247 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:03:05,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-18 11:03:05,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9fd41dd/36dae37ec1604c219e2dd65feac409e3/FLAG1d1233795 [2022-01-18 11:03:05,633 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:03:05,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-18 11:03:05,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9fd41dd/36dae37ec1604c219e2dd65feac409e3/FLAG1d1233795 [2022-01-18 11:03:05,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9fd41dd/36dae37ec1604c219e2dd65feac409e3 [2022-01-18 11:03:05,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:03:05,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:03:05,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:03:05,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:03:05,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:03:05,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee3e0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05, skipping insertion in model container [2022-01-18 11:03:05,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:03:05,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:03:05,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-01-18 11:03:05,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:03:05,837 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:03:05,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-01-18 11:03:05,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:03:05,865 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:03:05,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05 WrapperNode [2022-01-18 11:03:05,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:03:05,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:03:05,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:03:05,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:03:05,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,909 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-01-18 11:03:05,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:03:05,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:03:05,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:03:05,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:03:05,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:03:05,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:03:05,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:03:05,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:03:05,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (1/1) ... [2022-01-18 11:03:05,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:03:05,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:03:05,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 11:03:05,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 11:03:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:03:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:03:06,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:03:06,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:03:06,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:03:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:03:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:03:06,011 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:03:06,070 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:03:06,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:03:06,343 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:03:06,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:03:06,351 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 11:03:06,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:03:06 BoogieIcfgContainer [2022-01-18 11:03:06,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:03:06,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:03:06,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:03:06,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:03:06,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:03:05" (1/3) ... [2022-01-18 11:03:06,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef7267e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:03:06, skipping insertion in model container [2022-01-18 11:03:06,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:05" (2/3) ... [2022-01-18 11:03:06,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef7267e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:03:06, skipping insertion in model container [2022-01-18 11:03:06,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:03:06" (3/3) ... [2022-01-18 11:03:06,360 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-01-18 11:03:06,364 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:03:06,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:03:06,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:03:06,364 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:03:06,407 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,407 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,416 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,417 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,418 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,419 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,451 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,451 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,467 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,483 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,484 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,485 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,485 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,485 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:06,495 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:03:06,540 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:03:06,558 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 11:03:06,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:03:06,569 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 174 transitions, 364 flow [2022-01-18 11:03:06,844 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-18 11:03:06,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:06,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:06,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:06,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1228508451, now seen corresponding path program 1 times [2022-01-18 11:03:06,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:06,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314539860] [2022-01-18 11:03:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:06,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:07,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314539860] [2022-01-18 11:03:07,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314539860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:07,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:07,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:03:07,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558465990] [2022-01-18 11:03:07,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:07,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:03:07,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:03:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:03:07,378 INFO L87 Difference]: Start difference. First operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:07,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:07,734 INFO L93 Difference]: Finished difference Result 10047 states and 27493 transitions. [2022-01-18 11:03:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:03:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-18 11:03:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:07,815 INFO L225 Difference]: With dead ends: 10047 [2022-01-18 11:03:07,815 INFO L226 Difference]: Without dead ends: 8877 [2022-01-18 11:03:07,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:03:07,821 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 418 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:07,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1259 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-01-18 11:03:08,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6601. [2022-01-18 11:03:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6600 states have (on average 2.784090909090909) internal successors, (18375), 6600 states have internal predecessors, (18375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 18375 transitions. [2022-01-18 11:03:08,216 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 18375 transitions. Word has length 85 [2022-01-18 11:03:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:08,217 INFO L470 AbstractCegarLoop]: Abstraction has 6601 states and 18375 transitions. [2022-01-18 11:03:08,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 18375 transitions. [2022-01-18 11:03:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 11:03:08,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:08,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:08,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:03:08,240 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:08,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash 170552789, now seen corresponding path program 1 times [2022-01-18 11:03:08,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:08,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598828132] [2022-01-18 11:03:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:08,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:08,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:08,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598828132] [2022-01-18 11:03:08,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598828132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:08,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:08,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:08,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346795489] [2022-01-18 11:03:08,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:08,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:08,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:08,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:08,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:08,430 INFO L87 Difference]: Start difference. First operand 6601 states and 18375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:08,529 INFO L93 Difference]: Finished difference Result 8148 states and 22245 transitions. [2022-01-18 11:03:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:03:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 11:03:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:08,576 INFO L225 Difference]: With dead ends: 8148 [2022-01-18 11:03:08,577 INFO L226 Difference]: Without dead ends: 8148 [2022-01-18 11:03:08,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:08,579 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:08,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 329 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-01-18 11:03:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 6867. [2022-01-18 11:03:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6866 states have (on average 2.7599766967666763) internal successors, (18950), 6866 states have internal predecessors, (18950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 18950 transitions. [2022-01-18 11:03:08,848 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 18950 transitions. Word has length 87 [2022-01-18 11:03:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:08,849 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 18950 transitions. [2022-01-18 11:03:08,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 18950 transitions. [2022-01-18 11:03:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 11:03:08,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:08,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:08,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:03:08,870 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:08,871 INFO L85 PathProgramCache]: Analyzing trace with hash -993683521, now seen corresponding path program 1 times [2022-01-18 11:03:08,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:08,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413060114] [2022-01-18 11:03:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:08,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:09,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413060114] [2022-01-18 11:03:09,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413060114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:09,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:09,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:09,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217668212] [2022-01-18 11:03:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:09,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:09,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:09,004 INFO L87 Difference]: Start difference. First operand 6867 states and 18950 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:09,119 INFO L93 Difference]: Finished difference Result 9672 states and 26243 transitions. [2022-01-18 11:03:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:03:09,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 11:03:09,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:09,146 INFO L225 Difference]: With dead ends: 9672 [2022-01-18 11:03:09,147 INFO L226 Difference]: Without dead ends: 9672 [2022-01-18 11:03:09,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:09,148 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 251 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:09,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 379 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2022-01-18 11:03:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 6885. [2022-01-18 11:03:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.745496804183614) internal successors, (18900), 6884 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18900 transitions. [2022-01-18 11:03:09,406 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18900 transitions. Word has length 87 [2022-01-18 11:03:09,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:09,407 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18900 transitions. [2022-01-18 11:03:09,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18900 transitions. [2022-01-18 11:03:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 11:03:09,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:09,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:09,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:03:09,424 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1203068365, now seen corresponding path program 2 times [2022-01-18 11:03:09,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:09,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334445180] [2022-01-18 11:03:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:09,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:09,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:09,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334445180] [2022-01-18 11:03:09,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334445180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:09,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:09,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:09,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348128721] [2022-01-18 11:03:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:09,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:09,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:09,470 INFO L87 Difference]: Start difference. First operand 6885 states and 18900 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:09,544 INFO L93 Difference]: Finished difference Result 7730 states and 20793 transitions. [2022-01-18 11:03:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:03:09,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 11:03:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:09,563 INFO L225 Difference]: With dead ends: 7730 [2022-01-18 11:03:09,563 INFO L226 Difference]: Without dead ends: 7730 [2022-01-18 11:03:09,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:09,564 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 250 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:09,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 303 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:09,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-01-18 11:03:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7046. [2022-01-18 11:03:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 2.7144073811213625) internal successors, (19123), 7045 states have internal predecessors, (19123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 19123 transitions. [2022-01-18 11:03:09,772 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 19123 transitions. Word has length 87 [2022-01-18 11:03:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:09,773 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 19123 transitions. [2022-01-18 11:03:09,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 19123 transitions. [2022-01-18 11:03:09,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 11:03:09,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:09,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:09,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:03:09,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:09,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:09,790 INFO L85 PathProgramCache]: Analyzing trace with hash -958876555, now seen corresponding path program 3 times [2022-01-18 11:03:09,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:09,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682648217] [2022-01-18 11:03:09,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:09,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:09,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:09,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682648217] [2022-01-18 11:03:09,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682648217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:09,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:09,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:09,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626972640] [2022-01-18 11:03:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:09,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:09,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:09,866 INFO L87 Difference]: Start difference. First operand 7046 states and 19123 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:09,991 INFO L93 Difference]: Finished difference Result 9884 states and 26268 transitions. [2022-01-18 11:03:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:03:09,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 11:03:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:10,019 INFO L225 Difference]: With dead ends: 9884 [2022-01-18 11:03:10,020 INFO L226 Difference]: Without dead ends: 9884 [2022-01-18 11:03:10,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:03:10,021 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:10,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 494 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-01-18 11:03:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 7137. [2022-01-18 11:03:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 7136 states have (on average 2.7058576233183858) internal successors, (19309), 7136 states have internal predecessors, (19309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 19309 transitions. [2022-01-18 11:03:10,233 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 19309 transitions. Word has length 87 [2022-01-18 11:03:10,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:10,233 INFO L470 AbstractCegarLoop]: Abstraction has 7137 states and 19309 transitions. [2022-01-18 11:03:10,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 19309 transitions. [2022-01-18 11:03:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 11:03:10,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:10,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:10,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:03:10,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1113507785, now seen corresponding path program 2 times [2022-01-18 11:03:10,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:10,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392945582] [2022-01-18 11:03:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:10,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:10,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:10,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392945582] [2022-01-18 11:03:10,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392945582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:10,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:10,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:10,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702435923] [2022-01-18 11:03:10,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:10,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:10,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:10,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:10,321 INFO L87 Difference]: Start difference. First operand 7137 states and 19309 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:10,389 INFO L93 Difference]: Finished difference Result 7758 states and 20803 transitions. [2022-01-18 11:03:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 11:03:10,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 11:03:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:10,406 INFO L225 Difference]: With dead ends: 7758 [2022-01-18 11:03:10,407 INFO L226 Difference]: Without dead ends: 7758 [2022-01-18 11:03:10,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:10,408 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 286 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:10,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 276 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-01-18 11:03:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7082. [2022-01-18 11:03:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7081 states have (on average 2.699759920915125) internal successors, (19117), 7081 states have internal predecessors, (19117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 19117 transitions. [2022-01-18 11:03:10,601 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 19117 transitions. Word has length 87 [2022-01-18 11:03:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:10,602 INFO L470 AbstractCegarLoop]: Abstraction has 7082 states and 19117 transitions. [2022-01-18 11:03:10,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 19117 transitions. [2022-01-18 11:03:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:10,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:10,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:10,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:03:10,616 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash -121906834, now seen corresponding path program 1 times [2022-01-18 11:03:10,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:10,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753855615] [2022-01-18 11:03:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:10,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:10,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753855615] [2022-01-18 11:03:10,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753855615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:10,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:10,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:10,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824688099] [2022-01-18 11:03:10,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:10,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:10,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:10,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:10,790 INFO L87 Difference]: Start difference. First operand 7082 states and 19117 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:11,216 INFO L93 Difference]: Finished difference Result 8745 states and 23298 transitions. [2022-01-18 11:03:11,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:03:11,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:11,240 INFO L225 Difference]: With dead ends: 8745 [2022-01-18 11:03:11,240 INFO L226 Difference]: Without dead ends: 8398 [2022-01-18 11:03:11,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:03:11,242 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 412 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:11,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1534 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:11,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-01-18 11:03:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 6955. [2022-01-18 11:03:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6954 states have (on average 2.7018981880931836) internal successors, (18789), 6954 states have internal predecessors, (18789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 18789 transitions. [2022-01-18 11:03:11,416 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 18789 transitions. Word has length 91 [2022-01-18 11:03:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:11,417 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 18789 transitions. [2022-01-18 11:03:11,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 18789 transitions. [2022-01-18 11:03:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:11,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:11,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:11,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:03:11,430 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash -57199682, now seen corresponding path program 2 times [2022-01-18 11:03:11,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:11,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152781550] [2022-01-18 11:03:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:11,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:11,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:11,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152781550] [2022-01-18 11:03:11,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152781550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:11,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:11,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:11,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230552919] [2022-01-18 11:03:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:11,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:11,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:11,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:11,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:11,596 INFO L87 Difference]: Start difference. First operand 6955 states and 18789 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:12,069 INFO L93 Difference]: Finished difference Result 8014 states and 21541 transitions. [2022-01-18 11:03:12,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:03:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:12,091 INFO L225 Difference]: With dead ends: 8014 [2022-01-18 11:03:12,092 INFO L226 Difference]: Without dead ends: 7698 [2022-01-18 11:03:12,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:03:12,093 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 234 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:12,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2302 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:12,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-01-18 11:03:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 6959. [2022-01-18 11:03:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6958 states have (on average 2.7013509629203796) internal successors, (18796), 6958 states have internal predecessors, (18796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 18796 transitions. [2022-01-18 11:03:12,297 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 18796 transitions. Word has length 91 [2022-01-18 11:03:12,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:12,297 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 18796 transitions. [2022-01-18 11:03:12,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:12,298 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 18796 transitions. [2022-01-18 11:03:12,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:12,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:12,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:12,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:03:12,316 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:12,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:12,317 INFO L85 PathProgramCache]: Analyzing trace with hash 238403154, now seen corresponding path program 3 times [2022-01-18 11:03:12,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:12,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535552571] [2022-01-18 11:03:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:12,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:12,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:12,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535552571] [2022-01-18 11:03:12,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535552571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:12,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:12,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:12,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666171144] [2022-01-18 11:03:12,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:12,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:12,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:12,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:12,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:12,481 INFO L87 Difference]: Start difference. First operand 6959 states and 18796 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:12,849 INFO L93 Difference]: Finished difference Result 7925 states and 21311 transitions. [2022-01-18 11:03:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:12,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:12,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:12,867 INFO L225 Difference]: With dead ends: 7925 [2022-01-18 11:03:12,867 INFO L226 Difference]: Without dead ends: 7640 [2022-01-18 11:03:12,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:12,868 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 187 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:12,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1973 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2022-01-18 11:03:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 6963. [2022-01-18 11:03:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6962 states have (on average 2.700804366561333) internal successors, (18803), 6962 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 18803 transitions. [2022-01-18 11:03:13,024 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 18803 transitions. Word has length 91 [2022-01-18 11:03:13,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:13,024 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 18803 transitions. [2022-01-18 11:03:13,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 18803 transitions. [2022-01-18 11:03:13,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:13,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:13,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:13,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:03:13,037 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:13,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:13,038 INFO L85 PathProgramCache]: Analyzing trace with hash -179778500, now seen corresponding path program 4 times [2022-01-18 11:03:13,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:13,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187822778] [2022-01-18 11:03:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:13,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:13,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187822778] [2022-01-18 11:03:13,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187822778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:13,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:13,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:13,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856382750] [2022-01-18 11:03:13,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:13,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:13,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:13,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:13,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:13,168 INFO L87 Difference]: Start difference. First operand 6963 states and 18803 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:13,444 INFO L93 Difference]: Finished difference Result 7814 states and 21025 transitions. [2022-01-18 11:03:13,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:13,445 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:13,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:13,459 INFO L225 Difference]: With dead ends: 7814 [2022-01-18 11:03:13,460 INFO L226 Difference]: Without dead ends: 7563 [2022-01-18 11:03:13,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:13,461 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 149 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:13,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1303 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2022-01-18 11:03:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6967. [2022-01-18 11:03:13,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6966 states have (on average 2.7002583979328167) internal successors, (18810), 6966 states have internal predecessors, (18810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 18810 transitions. [2022-01-18 11:03:13,593 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 18810 transitions. Word has length 91 [2022-01-18 11:03:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:13,593 INFO L470 AbstractCegarLoop]: Abstraction has 6967 states and 18810 transitions. [2022-01-18 11:03:13,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 18810 transitions. [2022-01-18 11:03:13,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:13,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:13,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:13,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:03:13,605 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:13,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:13,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1313042934, now seen corresponding path program 5 times [2022-01-18 11:03:13,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:13,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997055597] [2022-01-18 11:03:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:13,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:13,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:13,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997055597] [2022-01-18 11:03:13,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997055597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:13,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:13,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:13,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596763510] [2022-01-18 11:03:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:13,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:13,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:13,719 INFO L87 Difference]: Start difference. First operand 6967 states and 18810 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:13,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:13,990 INFO L93 Difference]: Finished difference Result 7785 states and 20943 transitions. [2022-01-18 11:03:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:13,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:13,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:14,004 INFO L225 Difference]: With dead ends: 7785 [2022-01-18 11:03:14,005 INFO L226 Difference]: Without dead ends: 7515 [2022-01-18 11:03:14,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:14,005 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 149 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:14,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1798 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:14,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-01-18 11:03:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6933. [2022-01-18 11:03:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.701817657241777) internal successors, (18729), 6932 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18729 transitions. [2022-01-18 11:03:14,144 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18729 transitions. Word has length 91 [2022-01-18 11:03:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:14,145 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18729 transitions. [2022-01-18 11:03:14,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:14,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18729 transitions. [2022-01-18 11:03:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:14,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:14,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:14,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:03:14,181 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:14,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash -928662206, now seen corresponding path program 6 times [2022-01-18 11:03:14,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:14,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407994766] [2022-01-18 11:03:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:14,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:14,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:14,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407994766] [2022-01-18 11:03:14,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407994766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:14,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:14,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:14,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508023814] [2022-01-18 11:03:14,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:14,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:14,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:14,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:14,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:14,302 INFO L87 Difference]: Start difference. First operand 6933 states and 18729 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:14,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:14,701 INFO L93 Difference]: Finished difference Result 8034 states and 21592 transitions. [2022-01-18 11:03:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:03:14,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:14,713 INFO L225 Difference]: With dead ends: 8034 [2022-01-18 11:03:14,713 INFO L226 Difference]: Without dead ends: 7718 [2022-01-18 11:03:14,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:03:14,714 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 196 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:14,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1611 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-01-18 11:03:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 6941. [2022-01-18 11:03:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7012968299711817) internal successors, (18747), 6940 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18747 transitions. [2022-01-18 11:03:14,842 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18747 transitions. Word has length 91 [2022-01-18 11:03:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:14,842 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18747 transitions. [2022-01-18 11:03:14,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18747 transitions. [2022-01-18 11:03:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:14,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:14,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:14,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:03:14,853 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:14,854 INFO L85 PathProgramCache]: Analyzing trace with hash -633059370, now seen corresponding path program 7 times [2022-01-18 11:03:14,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:14,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322334834] [2022-01-18 11:03:14,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:14,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:14,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:14,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322334834] [2022-01-18 11:03:14,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322334834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:14,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:14,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:14,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636886627] [2022-01-18 11:03:14,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:14,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:14,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:14,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:14,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:14,980 INFO L87 Difference]: Start difference. First operand 6941 states and 18747 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:15,339 INFO L93 Difference]: Finished difference Result 7997 states and 21505 transitions. [2022-01-18 11:03:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:15,353 INFO L225 Difference]: With dead ends: 7997 [2022-01-18 11:03:15,353 INFO L226 Difference]: Without dead ends: 7712 [2022-01-18 11:03:15,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:15,354 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 160 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:15,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1950 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2022-01-18 11:03:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 6945. [2022-01-18 11:03:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-18 11:03:15,474 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-18 11:03:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:15,474 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-18 11:03:15,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:15,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-18 11:03:15,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:15,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:15,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:15,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:03:15,486 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1051241024, now seen corresponding path program 8 times [2022-01-18 11:03:15,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:15,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876768649] [2022-01-18 11:03:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:15,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:15,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:15,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876768649] [2022-01-18 11:03:15,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876768649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:15,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:15,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:15,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130190732] [2022-01-18 11:03:15,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:15,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:15,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:15,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:15,621 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:15,943 INFO L93 Difference]: Finished difference Result 7894 states and 21241 transitions. [2022-01-18 11:03:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:15,943 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:15,957 INFO L225 Difference]: With dead ends: 7894 [2022-01-18 11:03:15,957 INFO L226 Difference]: Without dead ends: 7643 [2022-01-18 11:03:15,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:15,958 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 118 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:15,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1523 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:15,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-01-18 11:03:16,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6949. [2022-01-18 11:03:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-18 11:03:16,109 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-18 11:03:16,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:16,110 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-18 11:03:16,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-18 11:03:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:16,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:16,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:16,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:03:16,121 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:16,122 INFO L85 PathProgramCache]: Analyzing trace with hash 441580410, now seen corresponding path program 9 times [2022-01-18 11:03:16,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:16,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972623633] [2022-01-18 11:03:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:16,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:16,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:16,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972623633] [2022-01-18 11:03:16,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972623633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:16,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:16,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:16,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941594321] [2022-01-18 11:03:16,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:16,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:16,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:16,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:16,271 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:16,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:16,556 INFO L93 Difference]: Finished difference Result 7865 states and 21159 transitions. [2022-01-18 11:03:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:16,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:16,567 INFO L225 Difference]: With dead ends: 7865 [2022-01-18 11:03:16,567 INFO L226 Difference]: Without dead ends: 7599 [2022-01-18 11:03:16,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:16,568 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 114 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:16,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1699 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-18 11:03:16,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6937. [2022-01-18 11:03:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.701268742791234) internal successors, (18736), 6936 states have internal predecessors, (18736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18736 transitions. [2022-01-18 11:03:16,706 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18736 transitions. Word has length 91 [2022-01-18 11:03:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:16,706 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18736 transitions. [2022-01-18 11:03:16,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18736 transitions. [2022-01-18 11:03:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:16,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:16,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:16,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:03:16,718 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1338573798, now seen corresponding path program 10 times [2022-01-18 11:03:16,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:16,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178271049] [2022-01-18 11:03:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:16,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:16,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:16,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178271049] [2022-01-18 11:03:16,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178271049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:16,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:16,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:16,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777439152] [2022-01-18 11:03:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:16,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:16,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:16,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:16,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:16,846 INFO L87 Difference]: Start difference. First operand 6937 states and 18736 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:17,202 INFO L93 Difference]: Finished difference Result 7914 states and 21288 transitions. [2022-01-18 11:03:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:03:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:17,215 INFO L225 Difference]: With dead ends: 7914 [2022-01-18 11:03:17,215 INFO L226 Difference]: Without dead ends: 7635 [2022-01-18 11:03:17,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:17,216 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 164 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:17,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1091 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2022-01-18 11:03:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6945. [2022-01-18 11:03:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-18 11:03:17,359 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-18 11:03:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:17,360 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-18 11:03:17,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-18 11:03:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:17,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:17,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:17,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:03:17,372 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:17,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash -94611704, now seen corresponding path program 11 times [2022-01-18 11:03:17,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:17,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303779780] [2022-01-18 11:03:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:17,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:17,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303779780] [2022-01-18 11:03:17,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303779780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:17,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:17,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:17,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235968634] [2022-01-18 11:03:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:17,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:17,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:17,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:17,502 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:17,855 INFO L93 Difference]: Finished difference Result 7874 states and 21186 transitions. [2022-01-18 11:03:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:17,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:17,870 INFO L225 Difference]: With dead ends: 7874 [2022-01-18 11:03:17,870 INFO L226 Difference]: Without dead ends: 7623 [2022-01-18 11:03:17,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:17,871 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 127 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:17,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1637 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-01-18 11:03:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 6949. [2022-01-18 11:03:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-18 11:03:17,999 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-18 11:03:17,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:17,999 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-18 11:03:17,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-18 11:03:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:18,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:18,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:18,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:03:18,011 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1398209730, now seen corresponding path program 12 times [2022-01-18 11:03:18,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:18,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876172609] [2022-01-18 11:03:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:18,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:18,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:18,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876172609] [2022-01-18 11:03:18,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876172609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:18,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:18,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:18,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360749873] [2022-01-18 11:03:18,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:18,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:18,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:18,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:18,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:18,131 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:18,392 INFO L93 Difference]: Finished difference Result 7845 states and 21104 transitions. [2022-01-18 11:03:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:18,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:18,405 INFO L225 Difference]: With dead ends: 7845 [2022-01-18 11:03:18,405 INFO L226 Difference]: Without dead ends: 7583 [2022-01-18 11:03:18,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:03:18,409 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:18,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1643 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:18,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2022-01-18 11:03:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6941. [2022-01-18 11:03:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7007204610951008) internal successors, (18743), 6940 states have internal predecessors, (18743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18743 transitions. [2022-01-18 11:03:18,515 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18743 transitions. Word has length 91 [2022-01-18 11:03:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:18,515 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18743 transitions. [2022-01-18 11:03:18,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18743 transitions. [2022-01-18 11:03:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:18,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:18,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:18,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:03:18,526 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 405891160, now seen corresponding path program 13 times [2022-01-18 11:03:18,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:18,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124657222] [2022-01-18 11:03:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:18,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:18,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:18,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124657222] [2022-01-18 11:03:18,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124657222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:18,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:18,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:18,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204939295] [2022-01-18 11:03:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:18,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:18,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:18,659 INFO L87 Difference]: Start difference. First operand 6941 states and 18743 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:18,999 INFO L93 Difference]: Finished difference Result 7929 states and 21314 transitions. [2022-01-18 11:03:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:03:19,000 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:19,013 INFO L225 Difference]: With dead ends: 7929 [2022-01-18 11:03:19,013 INFO L226 Difference]: Without dead ends: 7644 [2022-01-18 11:03:19,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:19,014 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:19,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1627 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2022-01-18 11:03:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6945. [2022-01-18 11:03:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.700172811059908) internal successors, (18750), 6944 states have internal predecessors, (18750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18750 transitions. [2022-01-18 11:03:19,159 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18750 transitions. Word has length 91 [2022-01-18 11:03:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:19,160 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18750 transitions. [2022-01-18 11:03:19,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18750 transitions. [2022-01-18 11:03:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:19,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:19,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:19,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:03:19,171 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:19,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash -12290494, now seen corresponding path program 14 times [2022-01-18 11:03:19,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:19,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989180165] [2022-01-18 11:03:19,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:19,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:19,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:19,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989180165] [2022-01-18 11:03:19,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989180165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:19,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:19,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:19,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132911804] [2022-01-18 11:03:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:19,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:19,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:19,293 INFO L87 Difference]: Start difference. First operand 6945 states and 18750 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:19,575 INFO L93 Difference]: Finished difference Result 7830 states and 21061 transitions. [2022-01-18 11:03:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:19,587 INFO L225 Difference]: With dead ends: 7830 [2022-01-18 11:03:19,588 INFO L226 Difference]: Without dead ends: 7579 [2022-01-18 11:03:19,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:19,590 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 128 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:19,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1768 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-01-18 11:03:19,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 6949. [2022-01-18 11:03:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.6996257915947037) internal successors, (18757), 6948 states have internal predecessors, (18757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18757 transitions. [2022-01-18 11:03:19,710 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18757 transitions. Word has length 91 [2022-01-18 11:03:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:19,710 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18757 transitions. [2022-01-18 11:03:19,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:19,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18757 transitions. [2022-01-18 11:03:19,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:19,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:19,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:19,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:03:19,721 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:19,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1480530940, now seen corresponding path program 15 times [2022-01-18 11:03:19,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:19,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457002926] [2022-01-18 11:03:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:19,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:19,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:19,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457002926] [2022-01-18 11:03:19,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457002926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:19,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:19,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:19,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33774233] [2022-01-18 11:03:19,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:19,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:19,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:19,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:19,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:19,844 INFO L87 Difference]: Start difference. First operand 6949 states and 18757 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:20,088 INFO L93 Difference]: Finished difference Result 7785 states and 20935 transitions. [2022-01-18 11:03:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:20,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:20,098 INFO L225 Difference]: With dead ends: 7785 [2022-01-18 11:03:20,098 INFO L226 Difference]: Without dead ends: 7511 [2022-01-18 11:03:20,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:20,099 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 123 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:20,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1677 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2022-01-18 11:03:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 6921. [2022-01-18 11:03:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 6920 states have (on average 2.7011560693641616) internal successors, (18692), 6920 states have internal predecessors, (18692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 18692 transitions. [2022-01-18 11:03:20,211 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 18692 transitions. Word has length 91 [2022-01-18 11:03:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:20,211 INFO L470 AbstractCegarLoop]: Abstraction has 6921 states and 18692 transitions. [2022-01-18 11:03:20,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 18692 transitions. [2022-01-18 11:03:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:20,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:20,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:20,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:03:20,223 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash 899547442, now seen corresponding path program 16 times [2022-01-18 11:03:20,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:20,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889039352] [2022-01-18 11:03:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:20,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:20,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:20,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889039352] [2022-01-18 11:03:20,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889039352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:20,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:20,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:20,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847587547] [2022-01-18 11:03:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:20,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:20,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:20,345 INFO L87 Difference]: Start difference. First operand 6921 states and 18692 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:20,687 INFO L93 Difference]: Finished difference Result 8298 states and 22306 transitions. [2022-01-18 11:03:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:03:20,688 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:20,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:20,700 INFO L225 Difference]: With dead ends: 8298 [2022-01-18 11:03:20,701 INFO L226 Difference]: Without dead ends: 7982 [2022-01-18 11:03:20,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:03:20,702 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 198 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:20,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1451 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2022-01-18 11:03:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6933. [2022-01-18 11:03:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.70066358915176) internal successors, (18721), 6932 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18721 transitions. [2022-01-18 11:03:20,784 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18721 transitions. Word has length 91 [2022-01-18 11:03:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:20,784 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18721 transitions. [2022-01-18 11:03:20,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18721 transitions. [2022-01-18 11:03:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:20,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:20,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:20,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:03:20,796 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1195150278, now seen corresponding path program 17 times [2022-01-18 11:03:20,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:20,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023412910] [2022-01-18 11:03:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:20,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:20,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:20,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023412910] [2022-01-18 11:03:20,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023412910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:20,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:20,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271160811] [2022-01-18 11:03:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:20,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:20,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:20,909 INFO L87 Difference]: Start difference. First operand 6933 states and 18721 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:21,216 INFO L93 Difference]: Finished difference Result 8261 states and 22219 transitions. [2022-01-18 11:03:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:21,227 INFO L225 Difference]: With dead ends: 8261 [2022-01-18 11:03:21,227 INFO L226 Difference]: Without dead ends: 7976 [2022-01-18 11:03:21,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:21,228 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 176 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:21,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1693 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:21,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-18 11:03:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-18 11:03:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 11:03:21,323 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 11:03:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:21,323 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 11:03:21,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 11:03:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:21,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:21,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:21,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:03:21,335 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:21,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash 776968624, now seen corresponding path program 18 times [2022-01-18 11:03:21,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:21,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584370593] [2022-01-18 11:03:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:21,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:21,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:21,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584370593] [2022-01-18 11:03:21,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584370593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:21,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:21,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:21,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620707694] [2022-01-18 11:03:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:21,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:21,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:21,443 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:21,710 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-18 11:03:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:21,720 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 11:03:21,720 INFO L226 Difference]: Without dead ends: 7907 [2022-01-18 11:03:21,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:21,720 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 129 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:21,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1735 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-18 11:03:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-18 11:03:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 11:03:21,802 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 11:03:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:21,802 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 11:03:21,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 11:03:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:21,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:21,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:21,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:03:21,810 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2025177238, now seen corresponding path program 19 times [2022-01-18 11:03:21,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:21,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503839728] [2022-01-18 11:03:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:21,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:21,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503839728] [2022-01-18 11:03:21,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503839728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:21,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:21,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:21,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067229321] [2022-01-18 11:03:21,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:21,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:21,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:21,952 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:22,210 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-18 11:03:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:22,222 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 11:03:22,222 INFO L226 Difference]: Without dead ends: 7863 [2022-01-18 11:03:22,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:22,223 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 128 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:22,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1552 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2022-01-18 11:03:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 6929. [2022-01-18 11:03:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.700635103926097) internal successors, (18710), 6928 states have internal predecessors, (18710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18710 transitions. [2022-01-18 11:03:22,302 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18710 transitions. Word has length 91 [2022-01-18 11:03:22,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:22,302 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18710 transitions. [2022-01-18 11:03:22,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18710 transitions. [2022-01-18 11:03:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:22,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:22,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:22,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:03:22,310 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:22,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:22,310 INFO L85 PathProgramCache]: Analyzing trace with hash 489635850, now seen corresponding path program 20 times [2022-01-18 11:03:22,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:22,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588654484] [2022-01-18 11:03:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:22,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:22,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:22,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588654484] [2022-01-18 11:03:22,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588654484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:22,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:22,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:22,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683320469] [2022-01-18 11:03:22,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:22,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:22,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:22,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:22,430 INFO L87 Difference]: Start difference. First operand 6929 states and 18710 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:22,737 INFO L93 Difference]: Finished difference Result 8258 states and 22222 transitions. [2022-01-18 11:03:22,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:03:22,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:22,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:22,756 INFO L225 Difference]: With dead ends: 8258 [2022-01-18 11:03:22,756 INFO L226 Difference]: Without dead ends: 7979 [2022-01-18 11:03:22,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:03:22,758 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:22,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1695 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-01-18 11:03:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 6937. [2022-01-18 11:03:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 11:03:22,899 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 11:03:22,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:22,899 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 11:03:22,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 11:03:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:22,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:22,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:22,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:03:22,907 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1733597944, now seen corresponding path program 21 times [2022-01-18 11:03:22,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:22,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597970065] [2022-01-18 11:03:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:22,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:23,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:23,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597970065] [2022-01-18 11:03:23,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597970065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:23,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:23,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:23,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157741567] [2022-01-18 11:03:23,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:23,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:23,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:23,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:23,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:23,029 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:23,293 INFO L93 Difference]: Finished difference Result 8206 states and 22087 transitions. [2022-01-18 11:03:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:23,303 INFO L225 Difference]: With dead ends: 8206 [2022-01-18 11:03:23,303 INFO L226 Difference]: Without dead ends: 7955 [2022-01-18 11:03:23,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:23,304 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 147 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:23,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 1523 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-01-18 11:03:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 6941. [2022-01-18 11:03:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 11:03:23,399 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 11:03:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 11:03:23,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 11:03:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:23,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:23,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:23,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:03:23,407 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1068547918, now seen corresponding path program 22 times [2022-01-18 11:03:23,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:23,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073685162] [2022-01-18 11:03:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:23,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:23,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:23,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073685162] [2022-01-18 11:03:23,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073685162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:23,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:23,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:23,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857529249] [2022-01-18 11:03:23,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:23,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:23,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:23,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:23,522 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:23,792 INFO L93 Difference]: Finished difference Result 8177 states and 22005 transitions. [2022-01-18 11:03:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:23,802 INFO L225 Difference]: With dead ends: 8177 [2022-01-18 11:03:23,802 INFO L226 Difference]: Without dead ends: 7915 [2022-01-18 11:03:23,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:23,803 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 136 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:23,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1941 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-01-18 11:03:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6933. [2022-01-18 11:03:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-18 11:03:23,901 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-18 11:03:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:23,901 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-18 11:03:23,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-18 11:03:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:23,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:23,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:23,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:03:23,909 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2060866488, now seen corresponding path program 23 times [2022-01-18 11:03:23,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:23,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640895158] [2022-01-18 11:03:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:23,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:24,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:24,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640895158] [2022-01-18 11:03:24,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640895158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:24,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:24,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:24,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515273096] [2022-01-18 11:03:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:24,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:24,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:24,049 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:24,390 INFO L93 Difference]: Finished difference Result 8261 states and 22215 transitions. [2022-01-18 11:03:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:03:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:24,401 INFO L225 Difference]: With dead ends: 8261 [2022-01-18 11:03:24,401 INFO L226 Difference]: Without dead ends: 7976 [2022-01-18 11:03:24,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:24,402 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:24,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-18 11:03:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-18 11:03:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-18 11:03:24,498 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-18 11:03:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:24,499 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-18 11:03:24,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-18 11:03:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:24,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:24,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:24,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:03:24,507 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1815919154, now seen corresponding path program 24 times [2022-01-18 11:03:24,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230485201] [2022-01-18 11:03:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:24,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:24,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:24,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230485201] [2022-01-18 11:03:24,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230485201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:24,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:24,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:24,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066118308] [2022-01-18 11:03:24,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:24,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:24,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:24,625 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:24,867 INFO L93 Difference]: Finished difference Result 8170 states and 21984 transitions. [2022-01-18 11:03:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:24,877 INFO L225 Difference]: With dead ends: 8170 [2022-01-18 11:03:24,878 INFO L226 Difference]: Without dead ends: 7919 [2022-01-18 11:03:24,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:24,878 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 140 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:24,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1529 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-01-18 11:03:24,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 6941. [2022-01-18 11:03:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-18 11:03:24,984 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-18 11:03:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:24,984 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-18 11:03:24,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-18 11:03:24,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:24,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:24,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:24,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:03:24,992 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:24,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:24,993 INFO L85 PathProgramCache]: Analyzing trace with hash -986226708, now seen corresponding path program 25 times [2022-01-18 11:03:24,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:24,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613606778] [2022-01-18 11:03:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:24,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:25,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:25,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613606778] [2022-01-18 11:03:25,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613606778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:25,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:25,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:25,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407765079] [2022-01-18 11:03:25,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:25,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:25,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:25,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:25,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:25,113 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:25,401 INFO L93 Difference]: Finished difference Result 8129 states and 21869 transitions. [2022-01-18 11:03:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:25,411 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 11:03:25,411 INFO L226 Difference]: Without dead ends: 7859 [2022-01-18 11:03:25,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:25,412 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 133 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:25,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 2073 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:25,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2022-01-18 11:03:25,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 6925. [2022-01-18 11:03:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 2.7006065857885617) internal successors, (18699), 6924 states have internal predecessors, (18699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 18699 transitions. [2022-01-18 11:03:25,507 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 18699 transitions. Word has length 91 [2022-01-18 11:03:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:25,507 INFO L470 AbstractCegarLoop]: Abstraction has 6925 states and 18699 transitions. [2022-01-18 11:03:25,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 18699 transitions. [2022-01-18 11:03:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:25,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:25,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:25,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:03:25,518 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2013636544, now seen corresponding path program 26 times [2022-01-18 11:03:25,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:25,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130247829] [2022-01-18 11:03:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:25,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:25,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:25,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130247829] [2022-01-18 11:03:25,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130247829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:25,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:25,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:25,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587657532] [2022-01-18 11:03:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:25,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:25,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:25,637 INFO L87 Difference]: Start difference. First operand 6925 states and 18699 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:25,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:25,991 INFO L93 Difference]: Finished difference Result 8222 states and 22123 transitions. [2022-01-18 11:03:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:03:25,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:25,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:26,001 INFO L225 Difference]: With dead ends: 8222 [2022-01-18 11:03:26,002 INFO L226 Difference]: Without dead ends: 7943 [2022-01-18 11:03:26,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-01-18 11:03:26,003 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 242 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:26,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2120 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-01-18 11:03:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6937. [2022-01-18 11:03:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 11:03:26,109 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 11:03:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:26,109 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 11:03:26,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 11:03:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:26,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:26,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:26,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:03:26,118 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:26,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -769674450, now seen corresponding path program 27 times [2022-01-18 11:03:26,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:26,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256491409] [2022-01-18 11:03:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:26,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:26,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:26,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256491409] [2022-01-18 11:03:26,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256491409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:26,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:26,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:26,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767130663] [2022-01-18 11:03:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:26,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:26,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:26,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:26,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:26,230 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:26,507 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-18 11:03:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:26,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:26,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:26,518 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 11:03:26,518 INFO L226 Difference]: Without dead ends: 7907 [2022-01-18 11:03:26,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:26,519 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 198 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:26,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1641 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:26,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-18 11:03:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-18 11:03:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 11:03:26,603 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 11:03:26,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:26,604 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 11:03:26,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 11:03:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:26,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:26,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:26,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:03:26,613 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:26,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:26,613 INFO L85 PathProgramCache]: Analyzing trace with hash 723146984, now seen corresponding path program 28 times [2022-01-18 11:03:26,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:26,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930196790] [2022-01-18 11:03:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:26,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:26,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:26,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930196790] [2022-01-18 11:03:26,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930196790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:26,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:26,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:26,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667878314] [2022-01-18 11:03:26,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:26,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:26,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:26,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:26,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:26,716 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:26,975 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-18 11:03:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:26,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:26,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:26,987 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 11:03:26,987 INFO L226 Difference]: Without dead ends: 7867 [2022-01-18 11:03:26,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:26,988 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 175 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:26,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2270 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-01-18 11:03:27,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6933. [2022-01-18 11:03:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-18 11:03:27,072 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-18 11:03:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:27,073 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-18 11:03:27,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-18 11:03:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:27,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:27,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:27,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:03:27,081 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -269171586, now seen corresponding path program 29 times [2022-01-18 11:03:27,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:27,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127756067] [2022-01-18 11:03:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:27,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:27,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:27,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127756067] [2022-01-18 11:03:27,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127756067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:27,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:27,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:27,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279759774] [2022-01-18 11:03:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:27,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:27,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:27,202 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:27,512 INFO L93 Difference]: Finished difference Result 8189 states and 22017 transitions. [2022-01-18 11:03:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:27,522 INFO L225 Difference]: With dead ends: 8189 [2022-01-18 11:03:27,522 INFO L226 Difference]: Without dead ends: 7904 [2022-01-18 11:03:27,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:27,523 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 210 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:27,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1701 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:27,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2022-01-18 11:03:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6937. [2022-01-18 11:03:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-18 11:03:27,605 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-18 11:03:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-18 11:03:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-18 11:03:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:27,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:27,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:27,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:03:27,614 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -687353240, now seen corresponding path program 30 times [2022-01-18 11:03:27,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987431204] [2022-01-18 11:03:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:27,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:27,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987431204] [2022-01-18 11:03:27,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987431204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:27,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:27,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:27,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710343289] [2022-01-18 11:03:27,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:27,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:27,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:27,722 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:28,015 INFO L93 Difference]: Finished difference Result 8122 states and 21852 transitions. [2022-01-18 11:03:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:28,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:28,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:28,031 INFO L225 Difference]: With dead ends: 8122 [2022-01-18 11:03:28,031 INFO L226 Difference]: Without dead ends: 7871 [2022-01-18 11:03:28,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:28,032 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 195 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:28,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2046 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-01-18 11:03:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 6941. [2022-01-18 11:03:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-18 11:03:28,153 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-18 11:03:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:28,153 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-18 11:03:28,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-18 11:03:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:28,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:28,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:28,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:03:28,165 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:28,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash 805468194, now seen corresponding path program 31 times [2022-01-18 11:03:28,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:28,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744533493] [2022-01-18 11:03:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:28,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:28,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:28,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744533493] [2022-01-18 11:03:28,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744533493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:28,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:28,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:28,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950193399] [2022-01-18 11:03:28,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:28,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:28,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:28,263 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:28,486 INFO L93 Difference]: Finished difference Result 8093 states and 21770 transitions. [2022-01-18 11:03:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:28,487 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:28,497 INFO L225 Difference]: With dead ends: 8093 [2022-01-18 11:03:28,497 INFO L226 Difference]: Without dead ends: 7827 [2022-01-18 11:03:28,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:28,497 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 206 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:28,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1441 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:28,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-01-18 11:03:28,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 6929. [2022-01-18 11:03:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.7000577367205545) internal successors, (18706), 6928 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18706 transitions. [2022-01-18 11:03:28,582 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18706 transitions. Word has length 91 [2022-01-18 11:03:28,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:28,583 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18706 transitions. [2022-01-18 11:03:28,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:28,583 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18706 transitions. [2022-01-18 11:03:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:28,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:28,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:28,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:03:28,590 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:28,590 INFO L85 PathProgramCache]: Analyzing trace with hash 853696490, now seen corresponding path program 32 times [2022-01-18 11:03:28,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:28,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864851777] [2022-01-18 11:03:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:28,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:28,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:28,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864851777] [2022-01-18 11:03:28,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864851777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:28,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:28,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:28,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437779999] [2022-01-18 11:03:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:28,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:28,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:28,685 INFO L87 Difference]: Start difference. First operand 6929 states and 18706 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:29,118 INFO L93 Difference]: Finished difference Result 8651 states and 23106 transitions. [2022-01-18 11:03:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:03:29,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:29,129 INFO L225 Difference]: With dead ends: 8651 [2022-01-18 11:03:29,129 INFO L226 Difference]: Without dead ends: 8344 [2022-01-18 11:03:29,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:03:29,130 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 573 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:29,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 2324 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:29,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-01-18 11:03:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6877. [2022-01-18 11:03:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 2.6961896451425247) internal successors, (18539), 6876 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18539 transitions. [2022-01-18 11:03:29,211 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18539 transitions. Word has length 91 [2022-01-18 11:03:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:29,211 INFO L470 AbstractCegarLoop]: Abstraction has 6877 states and 18539 transitions. [2022-01-18 11:03:29,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18539 transitions. [2022-01-18 11:03:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:29,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:29,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:29,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:03:29,219 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -974686014, now seen corresponding path program 33 times [2022-01-18 11:03:29,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:29,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210092794] [2022-01-18 11:03:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:29,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:29,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:29,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210092794] [2022-01-18 11:03:29,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210092794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:29,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:29,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:29,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950520828] [2022-01-18 11:03:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:29,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:29,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:29,321 INFO L87 Difference]: Start difference. First operand 6877 states and 18539 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:29,700 INFO L93 Difference]: Finished difference Result 8114 states and 21798 transitions. [2022-01-18 11:03:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:03:29,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:29,714 INFO L225 Difference]: With dead ends: 8114 [2022-01-18 11:03:29,714 INFO L226 Difference]: Without dead ends: 7835 [2022-01-18 11:03:29,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:03:29,715 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:29,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 2485 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-01-18 11:03:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 6881. [2022-01-18 11:03:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6880 states have (on average 2.6956395348837208) internal successors, (18546), 6880 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 18546 transitions. [2022-01-18 11:03:29,807 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 18546 transitions. Word has length 91 [2022-01-18 11:03:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:29,808 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 18546 transitions. [2022-01-18 11:03:29,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 18546 transitions. [2022-01-18 11:03:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:29,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:29,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:29,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:03:29,815 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:29,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash 269276080, now seen corresponding path program 34 times [2022-01-18 11:03:29,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:29,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783867954] [2022-01-18 11:03:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:29,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:29,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783867954] [2022-01-18 11:03:29,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783867954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:29,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:29,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:29,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365843289] [2022-01-18 11:03:29,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:29,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:29,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:29,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:29,916 INFO L87 Difference]: Start difference. First operand 6881 states and 18546 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:30,181 INFO L93 Difference]: Finished difference Result 8034 states and 21586 transitions. [2022-01-18 11:03:30,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:30,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:30,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:30,193 INFO L225 Difference]: With dead ends: 8034 [2022-01-18 11:03:30,193 INFO L226 Difference]: Without dead ends: 7783 [2022-01-18 11:03:30,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:30,194 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 265 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:30,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1942 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:30,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2022-01-18 11:03:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 6885. [2022-01-18 11:03:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.6950900639163278) internal successors, (18553), 6884 states have internal predecessors, (18553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18553 transitions. [2022-01-18 11:03:30,275 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18553 transitions. Word has length 91 [2022-01-18 11:03:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:30,275 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18553 transitions. [2022-01-18 11:03:30,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18553 transitions. [2022-01-18 11:03:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:30,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:30,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:30,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:03:30,283 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:30,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1762097514, now seen corresponding path program 35 times [2022-01-18 11:03:30,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:30,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887224168] [2022-01-18 11:03:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:30,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:30,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:30,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887224168] [2022-01-18 11:03:30,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887224168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:30,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:30,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:30,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677256169] [2022-01-18 11:03:30,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:30,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:30,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:30,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:30,416 INFO L87 Difference]: Start difference. First operand 6885 states and 18553 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:30,624 INFO L93 Difference]: Finished difference Result 7997 states and 21482 transitions. [2022-01-18 11:03:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:30,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:30,633 INFO L225 Difference]: With dead ends: 7997 [2022-01-18 11:03:30,633 INFO L226 Difference]: Without dead ends: 7719 [2022-01-18 11:03:30,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:30,634 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 237 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:30,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1903 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:30,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-01-18 11:03:30,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6845. [2022-01-18 11:03:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 6844 states have (on average 2.695353594389246) internal successors, (18447), 6844 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 18447 transitions. [2022-01-18 11:03:30,713 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 18447 transitions. Word has length 91 [2022-01-18 11:03:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:30,713 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 18447 transitions. [2022-01-18 11:03:30,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 18447 transitions. [2022-01-18 11:03:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:30,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:30,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:30,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:03:30,721 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash 629696244, now seen corresponding path program 1 times [2022-01-18 11:03:30,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131477231] [2022-01-18 11:03:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:30,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:30,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:30,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131477231] [2022-01-18 11:03:30,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131477231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:30,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:30,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:30,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231459519] [2022-01-18 11:03:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:30,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:30,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:30,820 INFO L87 Difference]: Start difference. First operand 6845 states and 18447 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:31,264 INFO L93 Difference]: Finished difference Result 8662 states and 23037 transitions. [2022-01-18 11:03:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 11:03:31,264 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:31,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:31,275 INFO L225 Difference]: With dead ends: 8662 [2022-01-18 11:03:31,275 INFO L226 Difference]: Without dead ends: 8340 [2022-01-18 11:03:31,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:03:31,276 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 484 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:31,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2606 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2022-01-18 11:03:31,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 6753. [2022-01-18 11:03:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 6752 states have (on average 2.696830568720379) internal successors, (18209), 6752 states have internal predecessors, (18209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 18209 transitions. [2022-01-18 11:03:31,355 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 18209 transitions. Word has length 91 [2022-01-18 11:03:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:31,355 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 18209 transitions. [2022-01-18 11:03:31,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 18209 transitions. [2022-01-18 11:03:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:31,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:31,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:31,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:03:31,363 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2025620248, now seen corresponding path program 2 times [2022-01-18 11:03:31,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:31,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143919238] [2022-01-18 11:03:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:31,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:31,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:31,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143919238] [2022-01-18 11:03:31,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143919238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:31,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:31,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:31,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998949883] [2022-01-18 11:03:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:31,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:31,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:31,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:31,460 INFO L87 Difference]: Start difference. First operand 6753 states and 18209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:31,809 INFO L93 Difference]: Finished difference Result 8011 states and 21504 transitions. [2022-01-18 11:03:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:03:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:31,819 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 11:03:31,819 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 11:03:31,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:03:31,820 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 252 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:31,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 2749 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:31,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 11:03:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6757. [2022-01-18 11:03:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 6756 states have (on average 2.6962699822380105) internal successors, (18216), 6756 states have internal predecessors, (18216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 18216 transitions. [2022-01-18 11:03:31,900 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 18216 transitions. Word has length 91 [2022-01-18 11:03:31,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:31,900 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 18216 transitions. [2022-01-18 11:03:31,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 18216 transitions. [2022-01-18 11:03:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:31,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:31,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:31,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:03:31,908 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1607438594, now seen corresponding path program 3 times [2022-01-18 11:03:31,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:31,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029327460] [2022-01-18 11:03:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:31,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:32,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:32,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029327460] [2022-01-18 11:03:32,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029327460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:32,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:32,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:32,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826232201] [2022-01-18 11:03:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:32,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:32,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:32,003 INFO L87 Difference]: Start difference. First operand 6757 states and 18216 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:32,219 INFO L93 Difference]: Finished difference Result 7908 states and 21240 transitions. [2022-01-18 11:03:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:32,220 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:32,230 INFO L225 Difference]: With dead ends: 7908 [2022-01-18 11:03:32,230 INFO L226 Difference]: Without dead ends: 7651 [2022-01-18 11:03:32,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:32,231 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 194 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:32,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 2148 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2022-01-18 11:03:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6761. [2022-01-18 11:03:32,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6760 states have (on average 2.6957100591715975) internal successors, (18223), 6760 states have internal predecessors, (18223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 18223 transitions. [2022-01-18 11:03:32,309 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 18223 transitions. Word has length 91 [2022-01-18 11:03:32,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:32,309 INFO L470 AbstractCegarLoop]: Abstraction has 6761 states and 18223 transitions. [2022-01-18 11:03:32,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 18223 transitions. [2022-01-18 11:03:32,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:32,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:32,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:32,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:03:32,317 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:32,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:32,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1194707268, now seen corresponding path program 4 times [2022-01-18 11:03:32,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:32,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164577327] [2022-01-18 11:03:32,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:32,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:32,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:32,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164577327] [2022-01-18 11:03:32,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164577327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:32,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:32,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:32,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269202165] [2022-01-18 11:03:32,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:32,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:32,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:32,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:32,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:32,417 INFO L87 Difference]: Start difference. First operand 6761 states and 18223 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:32,714 INFO L93 Difference]: Finished difference Result 7879 states and 21158 transitions. [2022-01-18 11:03:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:32,728 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 11:03:32,728 INFO L226 Difference]: Without dead ends: 7607 [2022-01-18 11:03:32,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:32,729 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 203 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:32,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1891 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:32,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2022-01-18 11:03:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 6735. [2022-01-18 11:03:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6734 states have (on average 2.696762696762697) internal successors, (18160), 6734 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 18160 transitions. [2022-01-18 11:03:32,842 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 18160 transitions. Word has length 91 [2022-01-18 11:03:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:32,842 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 18160 transitions. [2022-01-18 11:03:32,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 18160 transitions. [2022-01-18 11:03:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:32,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:32,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:32,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:03:32,853 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:32,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1850666310, now seen corresponding path program 5 times [2022-01-18 11:03:32,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:32,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169563533] [2022-01-18 11:03:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:32,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:32,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:32,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169563533] [2022-01-18 11:03:32,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169563533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:32,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:32,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:32,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297087133] [2022-01-18 11:03:32,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:32,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:32,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:32,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:32,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:32,962 INFO L87 Difference]: Start difference. First operand 6735 states and 18160 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:33,313 INFO L93 Difference]: Finished difference Result 8008 states and 21503 transitions. [2022-01-18 11:03:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:33,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:33,326 INFO L225 Difference]: With dead ends: 8008 [2022-01-18 11:03:33,327 INFO L226 Difference]: Without dead ends: 7723 [2022-01-18 11:03:33,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:33,327 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 193 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:33,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1831 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-01-18 11:03:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 6743. [2022-01-18 11:03:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6962325719371107) internal successors, (18178), 6742 states have internal predecessors, (18178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18178 transitions. [2022-01-18 11:03:33,421 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18178 transitions. Word has length 91 [2022-01-18 11:03:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:33,421 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18178 transitions. [2022-01-18 11:03:33,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18178 transitions. [2022-01-18 11:03:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:33,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:33,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:33,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:03:33,428 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash -606704216, now seen corresponding path program 6 times [2022-01-18 11:03:33,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:33,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177282110] [2022-01-18 11:03:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:33,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:33,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:33,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:33,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177282110] [2022-01-18 11:03:33,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177282110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:33,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:33,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:33,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303522537] [2022-01-18 11:03:33,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:33,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:33,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:33,538 INFO L87 Difference]: Start difference. First operand 6743 states and 18178 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:33,832 INFO L93 Difference]: Finished difference Result 7956 states and 21368 transitions. [2022-01-18 11:03:33,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:33,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:33,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:33,844 INFO L225 Difference]: With dead ends: 7956 [2022-01-18 11:03:33,844 INFO L226 Difference]: Without dead ends: 7699 [2022-01-18 11:03:33,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:33,845 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 160 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:33,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2024 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2022-01-18 11:03:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6747. [2022-01-18 11:03:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6956715090423953) internal successors, (18185), 6746 states have internal predecessors, (18185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18185 transitions. [2022-01-18 11:03:33,925 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18185 transitions. Word has length 91 [2022-01-18 11:03:33,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:33,925 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18185 transitions. [2022-01-18 11:03:33,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18185 transitions. [2022-01-18 11:03:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:33,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:33,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:33,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:03:33,933 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash 886117218, now seen corresponding path program 7 times [2022-01-18 11:03:33,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:33,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153571932] [2022-01-18 11:03:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:33,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:34,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:34,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153571932] [2022-01-18 11:03:34,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153571932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:34,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:34,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:34,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391764434] [2022-01-18 11:03:34,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:34,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:34,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:34,033 INFO L87 Difference]: Start difference. First operand 6747 states and 18185 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:34,266 INFO L93 Difference]: Finished difference Result 7927 states and 21286 transitions. [2022-01-18 11:03:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:34,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:34,276 INFO L225 Difference]: With dead ends: 7927 [2022-01-18 11:03:34,276 INFO L226 Difference]: Without dead ends: 7659 [2022-01-18 11:03:34,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:34,277 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 165 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:34,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1750 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-01-18 11:03:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6739. [2022-01-18 11:03:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6738 states have (on average 2.6962006530127636) internal successors, (18167), 6738 states have internal predecessors, (18167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 18167 transitions. [2022-01-18 11:03:34,355 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 18167 transitions. Word has length 91 [2022-01-18 11:03:34,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:34,355 INFO L470 AbstractCegarLoop]: Abstraction has 6739 states and 18167 transitions. [2022-01-18 11:03:34,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 18167 transitions. [2022-01-18 11:03:34,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:34,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:34,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:34,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 11:03:34,362 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:34,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash -106201352, now seen corresponding path program 8 times [2022-01-18 11:03:34,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:34,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127424824] [2022-01-18 11:03:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:34,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:34,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:34,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127424824] [2022-01-18 11:03:34,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127424824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:34,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:34,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:34,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087094957] [2022-01-18 11:03:34,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:34,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:34,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:34,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:34,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:34,459 INFO L87 Difference]: Start difference. First operand 6739 states and 18167 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:34,776 INFO L93 Difference]: Finished difference Result 8011 states and 21496 transitions. [2022-01-18 11:03:34,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:03:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:34,786 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 11:03:34,786 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 11:03:34,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:03:34,786 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:34,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2269 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 11:03:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6743. [2022-01-18 11:03:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6956392761791754) internal successors, (18174), 6742 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18174 transitions. [2022-01-18 11:03:34,892 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18174 transitions. Word has length 91 [2022-01-18 11:03:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:34,892 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18174 transitions. [2022-01-18 11:03:34,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18174 transitions. [2022-01-18 11:03:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:34,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:34,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:34,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 11:03:34,899 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:34,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash -524383006, now seen corresponding path program 9 times [2022-01-18 11:03:34,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:34,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427536034] [2022-01-18 11:03:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:34,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:35,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:35,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427536034] [2022-01-18 11:03:35,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427536034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:35,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:35,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:35,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395072429] [2022-01-18 11:03:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:35,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:35,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:35,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:35,003 INFO L87 Difference]: Start difference. First operand 6743 states and 18174 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:35,278 INFO L93 Difference]: Finished difference Result 7920 states and 21265 transitions. [2022-01-18 11:03:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:35,278 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:35,287 INFO L225 Difference]: With dead ends: 7920 [2022-01-18 11:03:35,287 INFO L226 Difference]: Without dead ends: 7663 [2022-01-18 11:03:35,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:35,288 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 159 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:35,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 2138 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-01-18 11:03:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6747. [2022-01-18 11:03:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6950785650756) internal successors, (18181), 6746 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18181 transitions. [2022-01-18 11:03:35,362 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18181 transitions. Word has length 91 [2022-01-18 11:03:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:35,363 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18181 transitions. [2022-01-18 11:03:35,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18181 transitions. [2022-01-18 11:03:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:35,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:35,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:35,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 11:03:35,370 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash 968438428, now seen corresponding path program 10 times [2022-01-18 11:03:35,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:35,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949680113] [2022-01-18 11:03:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:35,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:35,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:35,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949680113] [2022-01-18 11:03:35,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949680113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:35,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:35,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:35,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073324495] [2022-01-18 11:03:35,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:35,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:35,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:35,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:35,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:35,460 INFO L87 Difference]: Start difference. First operand 6747 states and 18181 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:35,699 INFO L93 Difference]: Finished difference Result 7879 states and 21150 transitions. [2022-01-18 11:03:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:35,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:35,709 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 11:03:35,709 INFO L226 Difference]: Without dead ends: 7603 [2022-01-18 11:03:35,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:35,710 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 171 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:35,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1962 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:35,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2022-01-18 11:03:35,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 6717. [2022-01-18 11:03:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6716 states have (on average 2.6966944609886836) internal successors, (18111), 6716 states have internal predecessors, (18111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 18111 transitions. [2022-01-18 11:03:35,789 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 18111 transitions. Word has length 91 [2022-01-18 11:03:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:35,789 INFO L470 AbstractCegarLoop]: Abstraction has 6717 states and 18111 transitions. [2022-01-18 11:03:35,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 18111 transitions. [2022-01-18 11:03:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:35,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:35,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:35,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 11:03:35,797 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash 712233108, now seen corresponding path program 11 times [2022-01-18 11:03:35,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:35,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454197127] [2022-01-18 11:03:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:35,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:35,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:35,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454197127] [2022-01-18 11:03:35,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454197127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:35,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:35,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:35,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387771404] [2022-01-18 11:03:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:35,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:35,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:35,899 INFO L87 Difference]: Start difference. First operand 6717 states and 18111 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:36,193 INFO L93 Difference]: Finished difference Result 8104 states and 21751 transitions. [2022-01-18 11:03:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:03:36,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:36,204 INFO L225 Difference]: With dead ends: 8104 [2022-01-18 11:03:36,204 INFO L226 Difference]: Without dead ends: 7791 [2022-01-18 11:03:36,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:03:36,206 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 190 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:36,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1593 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-18 11:03:36,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6725. [2022-01-18 11:03:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.696162998215348) internal successors, (18129), 6724 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18129 transitions. [2022-01-18 11:03:36,295 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18129 transitions. Word has length 91 [2022-01-18 11:03:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:36,296 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18129 transitions. [2022-01-18 11:03:36,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18129 transitions. [2022-01-18 11:03:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:36,303 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:36,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:36,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 11:03:36,303 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash -456059060, now seen corresponding path program 12 times [2022-01-18 11:03:36,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:36,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625007096] [2022-01-18 11:03:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:36,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:36,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:36,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625007096] [2022-01-18 11:03:36,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625007096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:36,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:36,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:36,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084373766] [2022-01-18 11:03:36,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:36,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:36,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:36,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:36,410 INFO L87 Difference]: Start difference. First operand 6725 states and 18129 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:36,694 INFO L93 Difference]: Finished difference Result 8076 states and 21682 transitions. [2022-01-18 11:03:36,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:36,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:36,704 INFO L225 Difference]: With dead ends: 8076 [2022-01-18 11:03:36,704 INFO L226 Difference]: Without dead ends: 7791 [2022-01-18 11:03:36,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:36,705 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 162 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:36,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 1461 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-18 11:03:36,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6729. [2022-01-18 11:03:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-18 11:03:36,783 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-18 11:03:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:36,783 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-18 11:03:36,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-18 11:03:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:36,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:36,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:36,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 11:03:36,791 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash 787903034, now seen corresponding path program 13 times [2022-01-18 11:03:36,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:36,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801048377] [2022-01-18 11:03:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:36,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:36,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:36,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801048377] [2022-01-18 11:03:36,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801048377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:36,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:36,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:36,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176930169] [2022-01-18 11:03:36,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:36,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:36,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:36,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:36,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:36,892 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:37,130 INFO L93 Difference]: Finished difference Result 7996 states and 21470 transitions. [2022-01-18 11:03:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:37,130 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:37,139 INFO L225 Difference]: With dead ends: 7996 [2022-01-18 11:03:37,140 INFO L226 Difference]: Without dead ends: 7739 [2022-01-18 11:03:37,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:37,140 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:37,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1631 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-18 11:03:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6733. [2022-01-18 11:03:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-18 11:03:37,216 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-18 11:03:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:37,217 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-18 11:03:37,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-18 11:03:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:37,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:37,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:37,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 11:03:37,225 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:37,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:37,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2014242828, now seen corresponding path program 14 times [2022-01-18 11:03:37,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:37,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273673134] [2022-01-18 11:03:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:37,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:37,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:37,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273673134] [2022-01-18 11:03:37,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273673134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:37,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:37,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:37,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091595249] [2022-01-18 11:03:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:37,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:37,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:37,346 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:37,618 INFO L93 Difference]: Finished difference Result 7959 states and 21366 transitions. [2022-01-18 11:03:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:37,628 INFO L225 Difference]: With dead ends: 7959 [2022-01-18 11:03:37,628 INFO L226 Difference]: Without dead ends: 7687 [2022-01-18 11:03:37,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:37,629 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:37,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1724 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-01-18 11:03:37,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 6721. [2022-01-18 11:03:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6720 states have (on average 2.6961309523809525) internal successors, (18118), 6720 states have internal predecessors, (18118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 18118 transitions. [2022-01-18 11:03:37,706 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 18118 transitions. Word has length 91 [2022-01-18 11:03:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:37,706 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 18118 transitions. [2022-01-18 11:03:37,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 18118 transitions. [2022-01-18 11:03:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:37,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:37,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:37,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 11:03:37,713 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:37,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:37,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1391839194, now seen corresponding path program 15 times [2022-01-18 11:03:37,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:37,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893323674] [2022-01-18 11:03:37,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:37,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:37,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893323674] [2022-01-18 11:03:37,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893323674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:37,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:37,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:37,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261003234] [2022-01-18 11:03:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:37,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:37,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:37,831 INFO L87 Difference]: Start difference. First operand 6721 states and 18118 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:38,099 INFO L93 Difference]: Finished difference Result 8024 states and 21539 transitions. [2022-01-18 11:03:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:03:38,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:38,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:38,110 INFO L225 Difference]: With dead ends: 8024 [2022-01-18 11:03:38,110 INFO L226 Difference]: Without dead ends: 7739 [2022-01-18 11:03:38,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:38,111 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:38,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1999 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-18 11:03:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6729. [2022-01-18 11:03:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-18 11:03:38,189 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-18 11:03:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:38,189 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-18 11:03:38,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-18 11:03:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:38,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:38,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:38,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 11:03:38,200 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:38,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1659166008, now seen corresponding path program 16 times [2022-01-18 11:03:38,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:38,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989056713] [2022-01-18 11:03:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:38,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:38,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:38,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989056713] [2022-01-18 11:03:38,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989056713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:38,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:38,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:38,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546625192] [2022-01-18 11:03:38,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:38,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:38,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:38,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:38,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:38,307 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:38,603 INFO L93 Difference]: Finished difference Result 7972 states and 21404 transitions. [2022-01-18 11:03:38,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:38,603 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:38,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:38,617 INFO L225 Difference]: With dead ends: 7972 [2022-01-18 11:03:38,617 INFO L226 Difference]: Without dead ends: 7715 [2022-01-18 11:03:38,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:38,618 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 131 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:38,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1691 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-01-18 11:03:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 6733. [2022-01-18 11:03:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-18 11:03:38,731 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-18 11:03:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:38,731 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-18 11:03:38,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-18 11:03:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:38,741 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:38,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:38,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 11:03:38,742 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash -166344574, now seen corresponding path program 17 times [2022-01-18 11:03:38,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:38,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320841176] [2022-01-18 11:03:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:38,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:38,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:38,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320841176] [2022-01-18 11:03:38,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320841176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:38,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:38,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:38,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879800504] [2022-01-18 11:03:38,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:38,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:38,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:38,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:38,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:38,868 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:39,180 INFO L93 Difference]: Finished difference Result 7943 states and 21322 transitions. [2022-01-18 11:03:39,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:39,195 INFO L225 Difference]: With dead ends: 7943 [2022-01-18 11:03:39,195 INFO L226 Difference]: Without dead ends: 7675 [2022-01-18 11:03:39,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:39,195 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 125 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:39,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1915 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-18 11:03:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6725. [2022-01-18 11:03:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.6955681142177275) internal successors, (18125), 6724 states have internal predecessors, (18125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18125 transitions. [2022-01-18 11:03:39,312 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18125 transitions. Word has length 91 [2022-01-18 11:03:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:39,312 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18125 transitions. [2022-01-18 11:03:39,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18125 transitions. [2022-01-18 11:03:39,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:39,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:39,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:39,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 11:03:39,324 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:39,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:39,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1158663144, now seen corresponding path program 18 times [2022-01-18 11:03:39,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:39,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093176223] [2022-01-18 11:03:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:39,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:39,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:39,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093176223] [2022-01-18 11:03:39,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093176223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:39,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:39,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:39,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686632389] [2022-01-18 11:03:39,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:39,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:39,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:39,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:39,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:39,432 INFO L87 Difference]: Start difference. First operand 6725 states and 18125 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:39,750 INFO L93 Difference]: Finished difference Result 8011 states and 21488 transitions. [2022-01-18 11:03:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:03:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:39,761 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 11:03:39,761 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 11:03:39,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:03:39,761 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:39,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1998 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 11:03:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6729. [2022-01-18 11:03:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6950059453032105) internal successors, (18132), 6728 states have internal predecessors, (18132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18132 transitions. [2022-01-18 11:03:39,840 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18132 transitions. Word has length 91 [2022-01-18 11:03:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:39,840 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18132 transitions. [2022-01-18 11:03:39,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18132 transitions. [2022-01-18 11:03:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:39,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:39,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:39,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 11:03:39,847 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:39,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:39,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1576844798, now seen corresponding path program 19 times [2022-01-18 11:03:39,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:39,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393357868] [2022-01-18 11:03:39,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:39,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:39,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:39,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393357868] [2022-01-18 11:03:39,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393357868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:39,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:39,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:39,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290944964] [2022-01-18 11:03:39,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:39,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:39,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:39,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:39,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:39,968 INFO L87 Difference]: Start difference. First operand 6729 states and 18132 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:40,253 INFO L93 Difference]: Finished difference Result 7932 states and 21290 transitions. [2022-01-18 11:03:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:40,267 INFO L225 Difference]: With dead ends: 7932 [2022-01-18 11:03:40,268 INFO L226 Difference]: Without dead ends: 7675 [2022-01-18 11:03:40,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:40,268 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 132 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:40,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1878 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-18 11:03:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6733. [2022-01-18 11:03:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6944444444444446) internal successors, (18139), 6732 states have internal predecessors, (18139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18139 transitions. [2022-01-18 11:03:40,376 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18139 transitions. Word has length 91 [2022-01-18 11:03:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:40,376 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18139 transitions. [2022-01-18 11:03:40,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18139 transitions. [2022-01-18 11:03:40,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:40,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:40,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:40,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 11:03:40,385 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:40,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:40,385 INFO L85 PathProgramCache]: Analyzing trace with hash -84023364, now seen corresponding path program 20 times [2022-01-18 11:03:40,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:40,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105184440] [2022-01-18 11:03:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:40,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:40,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:40,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105184440] [2022-01-18 11:03:40,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105184440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:40,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:40,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:40,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375551440] [2022-01-18 11:03:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:40,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:40,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:40,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:40,488 INFO L87 Difference]: Start difference. First operand 6733 states and 18139 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:40,741 INFO L93 Difference]: Finished difference Result 7879 states and 21142 transitions. [2022-01-18 11:03:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:40,741 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:40,751 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 11:03:40,751 INFO L226 Difference]: Without dead ends: 7599 [2022-01-18 11:03:40,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:40,751 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:40,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1729 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-18 11:03:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6709. [2022-01-18 11:03:40,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 6708 states have (on average 2.6960345855694694) internal successors, (18085), 6708 states have internal predecessors, (18085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 18085 transitions. [2022-01-18 11:03:40,852 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 18085 transitions. Word has length 91 [2022-01-18 11:03:40,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:40,852 INFO L470 AbstractCegarLoop]: Abstraction has 6709 states and 18085 transitions. [2022-01-18 11:03:40,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 18085 transitions. [2022-01-18 11:03:40,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:40,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:40,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:40,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 11:03:40,859 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:40,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:40,860 INFO L85 PathProgramCache]: Analyzing trace with hash 766843090, now seen corresponding path program 21 times [2022-01-18 11:03:40,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:40,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798117224] [2022-01-18 11:03:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:40,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:40,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:40,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798117224] [2022-01-18 11:03:40,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798117224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:40,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:40,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:40,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875514592] [2022-01-18 11:03:40,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:40,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:40,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:40,965 INFO L87 Difference]: Start difference. First operand 6709 states and 18085 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:41,326 INFO L93 Difference]: Finished difference Result 8294 states and 22104 transitions. [2022-01-18 11:03:41,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:03:41,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:41,336 INFO L225 Difference]: With dead ends: 8294 [2022-01-18 11:03:41,336 INFO L226 Difference]: Without dead ends: 7953 [2022-01-18 11:03:41,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:03:41,337 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 396 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:41,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 2421 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2022-01-18 11:03:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 6633. [2022-01-18 11:03:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.692400482509047) internal successors, (17856), 6632 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17856 transitions. [2022-01-18 11:03:41,427 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17856 transitions. Word has length 91 [2022-01-18 11:03:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:41,427 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17856 transitions. [2022-01-18 11:03:41,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17856 transitions. [2022-01-18 11:03:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:41,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:41,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:41,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 11:03:41,434 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:41,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:41,435 INFO L85 PathProgramCache]: Analyzing trace with hash 519941212, now seen corresponding path program 22 times [2022-01-18 11:03:41,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:41,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986823638] [2022-01-18 11:03:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:41,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:41,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:41,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986823638] [2022-01-18 11:03:41,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986823638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:41,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:41,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:41,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155938986] [2022-01-18 11:03:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:41,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:41,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:41,544 INFO L87 Difference]: Start difference. First operand 6633 states and 17856 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:41,892 INFO L93 Difference]: Finished difference Result 7674 states and 20566 transitions. [2022-01-18 11:03:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:03:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:41,901 INFO L225 Difference]: With dead ends: 7674 [2022-01-18 11:03:41,901 INFO L226 Difference]: Without dead ends: 7361 [2022-01-18 11:03:41,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 11:03:41,902 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 233 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:41,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2177 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:41,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2022-01-18 11:03:41,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6637. [2022-01-18 11:03:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6636 states have (on average 2.6918324291742013) internal successors, (17863), 6636 states have internal predecessors, (17863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 17863 transitions. [2022-01-18 11:03:41,976 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 17863 transitions. Word has length 91 [2022-01-18 11:03:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:41,976 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 17863 transitions. [2022-01-18 11:03:41,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 17863 transitions. [2022-01-18 11:03:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:41,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:41,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:41,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 11:03:41,983 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:41,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:41,983 INFO L85 PathProgramCache]: Analyzing trace with hash -648350956, now seen corresponding path program 23 times [2022-01-18 11:03:41,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:41,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067389297] [2022-01-18 11:03:41,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:41,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:42,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067389297] [2022-01-18 11:03:42,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067389297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:42,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:42,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:42,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390270701] [2022-01-18 11:03:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:42,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:42,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:42,071 INFO L87 Difference]: Start difference. First operand 6637 states and 17863 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:42,322 INFO L93 Difference]: Finished difference Result 7594 states and 20354 transitions. [2022-01-18 11:03:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:42,334 INFO L225 Difference]: With dead ends: 7594 [2022-01-18 11:03:42,335 INFO L226 Difference]: Without dead ends: 7309 [2022-01-18 11:03:42,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:03:42,335 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 197 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:42,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1975 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-01-18 11:03:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6641. [2022-01-18 11:03:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6640 states have (on average 2.691265060240964) internal successors, (17870), 6640 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 17870 transitions. [2022-01-18 11:03:42,415 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 17870 transitions. Word has length 91 [2022-01-18 11:03:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:42,415 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 17870 transitions. [2022-01-18 11:03:42,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 17870 transitions. [2022-01-18 11:03:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:42,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:42,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:42,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 11:03:42,425 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 595611138, now seen corresponding path program 24 times [2022-01-18 11:03:42,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:42,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418343081] [2022-01-18 11:03:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:42,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:42,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:42,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418343081] [2022-01-18 11:03:42,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418343081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:42,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:42,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:42,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348661991] [2022-01-18 11:03:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:42,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:42,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:42,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:42,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:42,526 INFO L87 Difference]: Start difference. First operand 6641 states and 17870 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:42,727 INFO L93 Difference]: Finished difference Result 7514 states and 20142 transitions. [2022-01-18 11:03:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:42,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:42,737 INFO L225 Difference]: With dead ends: 7514 [2022-01-18 11:03:42,737 INFO L226 Difference]: Without dead ends: 7257 [2022-01-18 11:03:42,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:42,738 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 157 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:42,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1676 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:42,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2022-01-18 11:03:42,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 6645. [2022-01-18 11:03:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 6644 states have (on average 2.6906983744732087) internal successors, (17877), 6644 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 17877 transitions. [2022-01-18 11:03:42,821 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 17877 transitions. Word has length 91 [2022-01-18 11:03:42,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:42,821 INFO L470 AbstractCegarLoop]: Abstraction has 6645 states and 17877 transitions. [2022-01-18 11:03:42,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 17877 transitions. [2022-01-18 11:03:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:42,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:42,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:42,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 11:03:42,829 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:42,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:42,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2088432572, now seen corresponding path program 25 times [2022-01-18 11:03:42,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:42,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226374108] [2022-01-18 11:03:42,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:42,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:42,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:42,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226374108] [2022-01-18 11:03:42,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226374108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:42,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:42,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:42,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321297820] [2022-01-18 11:03:42,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:42,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:42,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:42,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:42,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:42,926 INFO L87 Difference]: Start difference. First operand 6645 states and 17877 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:43,163 INFO L93 Difference]: Finished difference Result 7469 states and 20016 transitions. [2022-01-18 11:03:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:43,173 INFO L225 Difference]: With dead ends: 7469 [2022-01-18 11:03:43,173 INFO L226 Difference]: Without dead ends: 7193 [2022-01-18 11:03:43,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:43,173 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 163 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:43,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1268 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-01-18 11:03:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 6617. [2022-01-18 11:03:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.6916565900846434) internal successors, (17808), 6616 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17808 transitions. [2022-01-18 11:03:43,255 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17808 transitions. Word has length 91 [2022-01-18 11:03:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:43,255 INFO L470 AbstractCegarLoop]: Abstraction has 6617 states and 17808 transitions. [2022-01-18 11:03:43,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17808 transitions. [2022-01-18 11:03:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:43,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:43,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:43,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 11:03:43,263 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:43,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:43,263 INFO L85 PathProgramCache]: Analyzing trace with hash 85978932, now seen corresponding path program 26 times [2022-01-18 11:03:43,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:43,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757948324] [2022-01-18 11:03:43,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:43,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:43,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:43,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757948324] [2022-01-18 11:03:43,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757948324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:43,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:43,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:43,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130637305] [2022-01-18 11:03:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:43,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:43,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:43,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:43,366 INFO L87 Difference]: Start difference. First operand 6617 states and 17808 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:43,761 INFO L93 Difference]: Finished difference Result 7694 states and 20617 transitions. [2022-01-18 11:03:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:03:43,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:43,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:43,773 INFO L225 Difference]: With dead ends: 7694 [2022-01-18 11:03:43,773 INFO L226 Difference]: Without dead ends: 7381 [2022-01-18 11:03:43,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:03:43,774 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 201 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:43,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1772 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:43,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-18 11:03:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6625. [2022-01-18 11:03:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.691123188405797) internal successors, (17826), 6624 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17826 transitions. [2022-01-18 11:03:43,849 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17826 transitions. Word has length 91 [2022-01-18 11:03:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:43,849 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17826 transitions. [2022-01-18 11:03:43,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17826 transitions. [2022-01-18 11:03:43,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:43,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:43,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:43,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 11:03:43,856 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1082313236, now seen corresponding path program 27 times [2022-01-18 11:03:43,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:43,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561916265] [2022-01-18 11:03:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:43,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:43,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561916265] [2022-01-18 11:03:43,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561916265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:43,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:43,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:43,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677546071] [2022-01-18 11:03:43,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:43,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:43,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:43,960 INFO L87 Difference]: Start difference. First operand 6625 states and 17826 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:44,223 INFO L93 Difference]: Finished difference Result 7666 states and 20548 transitions. [2022-01-18 11:03:44,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:44,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:44,233 INFO L225 Difference]: With dead ends: 7666 [2022-01-18 11:03:44,233 INFO L226 Difference]: Without dead ends: 7381 [2022-01-18 11:03:44,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:03:44,233 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 169 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:44,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2095 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:44,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-18 11:03:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6629. [2022-01-18 11:03:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-18 11:03:44,314 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-18 11:03:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:44,315 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-18 11:03:44,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-18 11:03:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:44,321 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:44,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:44,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 11:03:44,322 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:44,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:44,322 INFO L85 PathProgramCache]: Analyzing trace with hash 161648858, now seen corresponding path program 28 times [2022-01-18 11:03:44,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:44,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684066970] [2022-01-18 11:03:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:44,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:44,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684066970] [2022-01-18 11:03:44,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684066970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:44,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:44,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:44,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126811017] [2022-01-18 11:03:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:44,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:44,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:44,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:44,424 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:44,706 INFO L93 Difference]: Finished difference Result 7586 states and 20336 transitions. [2022-01-18 11:03:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:44,719 INFO L225 Difference]: With dead ends: 7586 [2022-01-18 11:03:44,719 INFO L226 Difference]: Without dead ends: 7329 [2022-01-18 11:03:44,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:44,721 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 124 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:44,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1664 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-18 11:03:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6633. [2022-01-18 11:03:44,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-18 11:03:44,834 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-18 11:03:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:44,834 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-18 11:03:44,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-18 11:03:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:44,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:44,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:44,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 11:03:44,842 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:44,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1654470292, now seen corresponding path program 29 times [2022-01-18 11:03:44,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:44,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181892572] [2022-01-18 11:03:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:44,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:44,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:44,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181892572] [2022-01-18 11:03:44,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181892572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:44,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:44,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:44,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775397531] [2022-01-18 11:03:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:44,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:44,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:44,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:44,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:44,947 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:45,193 INFO L93 Difference]: Finished difference Result 7549 states and 20232 transitions. [2022-01-18 11:03:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:45,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:45,203 INFO L225 Difference]: With dead ends: 7549 [2022-01-18 11:03:45,203 INFO L226 Difference]: Without dead ends: 7277 [2022-01-18 11:03:45,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:03:45,203 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 126 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:45,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1903 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2022-01-18 11:03:45,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6621. [2022-01-18 11:03:45,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6621 states, 6620 states have (on average 2.6910876132930515) internal successors, (17815), 6620 states have internal predecessors, (17815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 17815 transitions. [2022-01-18 11:03:45,280 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 17815 transitions. Word has length 91 [2022-01-18 11:03:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:45,280 INFO L470 AbstractCegarLoop]: Abstraction has 6621 states and 17815 transitions. [2022-01-18 11:03:45,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 17815 transitions. [2022-01-18 11:03:45,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:45,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:45,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:45,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 11:03:45,287 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash 765585018, now seen corresponding path program 30 times [2022-01-18 11:03:45,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:45,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333887343] [2022-01-18 11:03:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:45,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:45,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:45,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333887343] [2022-01-18 11:03:45,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333887343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:45,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:45,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:45,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478548414] [2022-01-18 11:03:45,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:45,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:45,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:45,385 INFO L87 Difference]: Start difference. First operand 6621 states and 17815 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:45,665 INFO L93 Difference]: Finished difference Result 7614 states and 20405 transitions. [2022-01-18 11:03:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:03:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:45,674 INFO L225 Difference]: With dead ends: 7614 [2022-01-18 11:03:45,674 INFO L226 Difference]: Without dead ends: 7329 [2022-01-18 11:03:45,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:45,674 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 168 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:45,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 1376 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-18 11:03:45,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6629. [2022-01-18 11:03:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-18 11:03:45,754 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-18 11:03:45,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:45,754 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-18 11:03:45,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-18 11:03:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:45,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:45,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:45,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 11:03:45,762 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2009547112, now seen corresponding path program 31 times [2022-01-18 11:03:45,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:45,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318572609] [2022-01-18 11:03:45,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:45,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:45,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:45,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318572609] [2022-01-18 11:03:45,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318572609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:45,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:45,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:45,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160860527] [2022-01-18 11:03:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:45,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:45,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:45,854 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:46,074 INFO L93 Difference]: Finished difference Result 7562 states and 20270 transitions. [2022-01-18 11:03:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:46,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:46,084 INFO L225 Difference]: With dead ends: 7562 [2022-01-18 11:03:46,085 INFO L226 Difference]: Without dead ends: 7305 [2022-01-18 11:03:46,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:46,085 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 135 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:46,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1688 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:46,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-01-18 11:03:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 6633. [2022-01-18 11:03:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-18 11:03:46,168 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-18 11:03:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:46,168 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-18 11:03:46,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-18 11:03:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:46,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:46,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:46,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 11:03:46,176 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:46,176 INFO L85 PathProgramCache]: Analyzing trace with hash -792598750, now seen corresponding path program 32 times [2022-01-18 11:03:46,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:46,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172352777] [2022-01-18 11:03:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:46,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:46,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:46,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172352777] [2022-01-18 11:03:46,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172352777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:46,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:46,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:46,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523519670] [2022-01-18 11:03:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:46,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:46,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:46,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:46,286 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:46,605 INFO L93 Difference]: Finished difference Result 7533 states and 20188 transitions. [2022-01-18 11:03:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:46,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:46,617 INFO L225 Difference]: With dead ends: 7533 [2022-01-18 11:03:46,617 INFO L226 Difference]: Without dead ends: 7265 [2022-01-18 11:03:46,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:46,618 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 124 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:46,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1656 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-18 11:03:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6625. [2022-01-18 11:03:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.6905193236714977) internal successors, (17822), 6624 states have internal predecessors, (17822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17822 transitions. [2022-01-18 11:03:46,730 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17822 transitions. Word has length 91 [2022-01-18 11:03:46,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:46,730 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17822 transitions. [2022-01-18 11:03:46,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17822 transitions. [2022-01-18 11:03:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:46,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:46,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:46,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 11:03:46,741 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1784917320, now seen corresponding path program 33 times [2022-01-18 11:03:46,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:46,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560901855] [2022-01-18 11:03:46,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:46,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:46,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:46,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560901855] [2022-01-18 11:03:46,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560901855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:46,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:46,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:46,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472135169] [2022-01-18 11:03:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:46,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:46,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:46,841 INFO L87 Difference]: Start difference. First operand 6625 states and 17822 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:47,163 INFO L93 Difference]: Finished difference Result 7601 states and 20354 transitions. [2022-01-18 11:03:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 11:03:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:47,175 INFO L225 Difference]: With dead ends: 7601 [2022-01-18 11:03:47,176 INFO L226 Difference]: Without dead ends: 7310 [2022-01-18 11:03:47,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:03:47,176 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 180 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:47,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1607 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-18 11:03:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 6629. [2022-01-18 11:03:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.68995171997586) internal successors, (17829), 6628 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17829 transitions. [2022-01-18 11:03:47,294 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17829 transitions. Word has length 91 [2022-01-18 11:03:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:47,294 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17829 transitions. [2022-01-18 11:03:47,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17829 transitions. [2022-01-18 11:03:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:47,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:47,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:47,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 11:03:47,306 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:47,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:47,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2091868322, now seen corresponding path program 34 times [2022-01-18 11:03:47,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:47,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623874266] [2022-01-18 11:03:47,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:47,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:47,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:47,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623874266] [2022-01-18 11:03:47,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623874266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:47,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:47,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:47,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43382552] [2022-01-18 11:03:47,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:47,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:47,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:47,404 INFO L87 Difference]: Start difference. First operand 6629 states and 17829 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:47,600 INFO L93 Difference]: Finished difference Result 7522 states and 20156 transitions. [2022-01-18 11:03:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:47,609 INFO L225 Difference]: With dead ends: 7522 [2022-01-18 11:03:47,610 INFO L226 Difference]: Without dead ends: 7265 [2022-01-18 11:03:47,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:03:47,610 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 142 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:47,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1570 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-18 11:03:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6633. [2022-01-18 11:03:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.6893848009650183) internal successors, (17836), 6632 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17836 transitions. [2022-01-18 11:03:47,694 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17836 transitions. Word has length 91 [2022-01-18 11:03:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:47,695 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17836 transitions. [2022-01-18 11:03:47,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17836 transitions. [2022-01-18 11:03:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 11:03:47,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:47,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:47,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 11:03:47,703 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash -710277540, now seen corresponding path program 35 times [2022-01-18 11:03:47,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:47,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620888652] [2022-01-18 11:03:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:47,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:47,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:47,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620888652] [2022-01-18 11:03:47,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620888652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:47,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:47,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 11:03:47,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731689077] [2022-01-18 11:03:47,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:47,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:03:47,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:47,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:03:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:03:47,794 INFO L87 Difference]: Start difference. First operand 6633 states and 17836 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:48,046 INFO L93 Difference]: Finished difference Result 7469 states and 20008 transitions. [2022-01-18 11:03:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:48,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 11:03:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:48,055 INFO L225 Difference]: With dead ends: 7469 [2022-01-18 11:03:48,056 INFO L226 Difference]: Without dead ends: 7185 [2022-01-18 11:03:48,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:48,056 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 144 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:48,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1821 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-01-18 11:03:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 6597. [2022-01-18 11:03:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6596 states have (on average 2.6908732565191027) internal successors, (17749), 6596 states have internal predecessors, (17749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 17749 transitions. [2022-01-18 11:03:48,133 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 17749 transitions. Word has length 91 [2022-01-18 11:03:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:48,133 INFO L470 AbstractCegarLoop]: Abstraction has 6597 states and 17749 transitions. [2022-01-18 11:03:48,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 17749 transitions. [2022-01-18 11:03:48,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-18 11:03:48,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 11:03:48,141 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1361468159, now seen corresponding path program 1 times [2022-01-18 11:03:48,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499531571] [2022-01-18 11:03:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:48,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:48,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499531571] [2022-01-18 11:03:48,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499531571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:48,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:48,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:03:48,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672378382] [2022-01-18 11:03:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:48,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:03:48,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:03:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:03:48,199 INFO L87 Difference]: Start difference. First operand 6597 states and 17749 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:48,309 INFO L93 Difference]: Finished difference Result 8654 states and 22706 transitions. [2022-01-18 11:03:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:03:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-18 11:03:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:48,324 INFO L225 Difference]: With dead ends: 8654 [2022-01-18 11:03:48,324 INFO L226 Difference]: Without dead ends: 7956 [2022-01-18 11:03:48,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 11:03:48,324 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 191 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:48,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 593 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7956 states. [2022-01-18 11:03:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7956 to 5846. [2022-01-18 11:03:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5845 states have (on average 2.688280581693755) internal successors, (15713), 5845 states have internal predecessors, (15713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15713 transitions. [2022-01-18 11:03:48,433 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15713 transitions. Word has length 111 [2022-01-18 11:03:48,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:48,433 INFO L470 AbstractCegarLoop]: Abstraction has 5846 states and 15713 transitions. [2022-01-18 11:03:48,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15713 transitions. [2022-01-18 11:03:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-18 11:03:48,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 11:03:48,442 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1203312979, now seen corresponding path program 1 times [2022-01-18 11:03:48,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742856894] [2022-01-18 11:03:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:48,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:48,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742856894] [2022-01-18 11:03:48,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742856894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:48,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:48,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:03:48,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317707249] [2022-01-18 11:03:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:48,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:03:48,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:03:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:48,563 INFO L87 Difference]: Start difference. First operand 5846 states and 15713 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:48,606 INFO L93 Difference]: Finished difference Result 5563 states and 14662 transitions. [2022-01-18 11:03:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:03:48,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-18 11:03:48,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:48,615 INFO L225 Difference]: With dead ends: 5563 [2022-01-18 11:03:48,615 INFO L226 Difference]: Without dead ends: 5563 [2022-01-18 11:03:48,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:03:48,615 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 162 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:48,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 168 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-01-18 11:03:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5563. [2022-01-18 11:03:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 2.6361021215390146) internal successors, (14662), 5562 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 14662 transitions. [2022-01-18 11:03:48,688 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 14662 transitions. Word has length 111 [2022-01-18 11:03:48,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:48,688 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 14662 transitions. [2022-01-18 11:03:48,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 14662 transitions. [2022-01-18 11:03:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:03:48,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 11:03:48,695 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1862970063, now seen corresponding path program 1 times [2022-01-18 11:03:48,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443098878] [2022-01-18 11:03:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:49,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:49,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443098878] [2022-01-18 11:03:49,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443098878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:49,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:49,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:49,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675470857] [2022-01-18 11:03:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:49,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:49,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:49,351 INFO L87 Difference]: Start difference. First operand 5563 states and 14662 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:58,704 INFO L93 Difference]: Finished difference Result 6672 states and 17462 transitions. [2022-01-18 11:03:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-18 11:03:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:03:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:58,710 INFO L225 Difference]: With dead ends: 6672 [2022-01-18 11:03:58,710 INFO L226 Difference]: Without dead ends: 5502 [2022-01-18 11:03:58,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2814 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=3221, Invalid=8769, Unknown=0, NotChecked=0, Total=11990 [2022-01-18 11:03:58,712 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1979 mSDsluCounter, 10217 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:58,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 10560 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:03:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-01-18 11:03:58,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5366. [2022-01-18 11:03:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.639888164026095) internal successors, (14163), 5365 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14163 transitions. [2022-01-18 11:03:58,768 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14163 transitions. Word has length 137 [2022-01-18 11:03:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:58,768 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14163 transitions. [2022-01-18 11:03:58,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14163 transitions. [2022-01-18 11:03:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:03:58,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:58,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:58,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 11:03:58,775 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash 298409985, now seen corresponding path program 2 times [2022-01-18 11:03:58,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:58,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550454402] [2022-01-18 11:03:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:58,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:59,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:59,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550454402] [2022-01-18 11:03:59,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550454402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:59,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:59,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:03:59,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482693166] [2022-01-18 11:03:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:59,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:03:59,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:03:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:59,445 INFO L87 Difference]: Start difference. First operand 5366 states and 14163 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:06,527 INFO L93 Difference]: Finished difference Result 7488 states and 19502 transitions. [2022-01-18 11:04:06,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 11:04:06,528 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:06,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:06,536 INFO L225 Difference]: With dead ends: 7488 [2022-01-18 11:04:06,536 INFO L226 Difference]: Without dead ends: 6515 [2022-01-18 11:04:06,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2663 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2903, Invalid=8227, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 11:04:06,538 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1899 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:06,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 10157 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:04:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2022-01-18 11:04:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 5378. [2022-01-18 11:04:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.637902175934536) internal successors, (14184), 5377 states have internal predecessors, (14184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 14184 transitions. [2022-01-18 11:04:06,598 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 14184 transitions. Word has length 137 [2022-01-18 11:04:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:06,598 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 14184 transitions. [2022-01-18 11:04:06,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 14184 transitions. [2022-01-18 11:04:06,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:06,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:06,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:06,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 11:04:06,603 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:06,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash 69628501, now seen corresponding path program 3 times [2022-01-18 11:04:06,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:06,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229657929] [2022-01-18 11:04:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:06,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:07,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229657929] [2022-01-18 11:04:07,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229657929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:07,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:07,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:07,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41509238] [2022-01-18 11:04:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:07,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:07,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:07,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:07,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:07,304 INFO L87 Difference]: Start difference. First operand 5378 states and 14184 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:25,282 INFO L93 Difference]: Finished difference Result 7042 states and 18372 transitions. [2022-01-18 11:04:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 11:04:25,282 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:25,290 INFO L225 Difference]: With dead ends: 7042 [2022-01-18 11:04:25,290 INFO L226 Difference]: Without dead ends: 6193 [2022-01-18 11:04:25,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2182 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=2321, Invalid=7185, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 11:04:25,292 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1497 mSDsluCounter, 9220 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 9588 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:25,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 9588 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:04:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-01-18 11:04:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5434. [2022-01-18 11:04:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6294864715626725) internal successors, (14286), 5433 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14286 transitions. [2022-01-18 11:04:25,353 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14286 transitions. Word has length 137 [2022-01-18 11:04:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:25,354 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14286 transitions. [2022-01-18 11:04:25,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14286 transitions. [2022-01-18 11:04:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:25,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:25,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:25,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 11:04:25,359 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:25,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:25,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1486434563, now seen corresponding path program 4 times [2022-01-18 11:04:25,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:25,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403190776] [2022-01-18 11:04:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:25,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:26,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:26,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403190776] [2022-01-18 11:04:26,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403190776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:26,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:26,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:26,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181320982] [2022-01-18 11:04:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:26,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:26,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:26,007 INFO L87 Difference]: Start difference. First operand 5434 states and 14286 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:31,415 INFO L93 Difference]: Finished difference Result 6608 states and 17214 transitions. [2022-01-18 11:04:31,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:04:31,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:31,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:31,423 INFO L225 Difference]: With dead ends: 6608 [2022-01-18 11:04:31,423 INFO L226 Difference]: Without dead ends: 6162 [2022-01-18 11:04:31,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1910 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2055, Invalid=6687, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:04:31,425 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1393 mSDsluCounter, 10021 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 10346 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:31,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 10346 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:04:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-18 11:04:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5438. [2022-01-18 11:04:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.6288394335111276) internal successors, (14293), 5437 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14293 transitions. [2022-01-18 11:04:31,483 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14293 transitions. Word has length 137 [2022-01-18 11:04:31,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:31,483 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14293 transitions. [2022-01-18 11:04:31,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14293 transitions. [2022-01-18 11:04:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:31,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:31,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:31,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 11:04:31,488 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:31,489 INFO L85 PathProgramCache]: Analyzing trace with hash -897574149, now seen corresponding path program 5 times [2022-01-18 11:04:31,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:31,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726891940] [2022-01-18 11:04:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:31,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:32,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:32,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726891940] [2022-01-18 11:04:32,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726891940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:32,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:32,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:32,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725305271] [2022-01-18 11:04:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:32,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:32,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:32,123 INFO L87 Difference]: Start difference. First operand 5438 states and 14293 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:38,375 INFO L93 Difference]: Finished difference Result 6370 states and 16667 transitions. [2022-01-18 11:04:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:04:38,375 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:38,383 INFO L225 Difference]: With dead ends: 6370 [2022-01-18 11:04:38,383 INFO L226 Difference]: Without dead ends: 5955 [2022-01-18 11:04:38,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1806, Invalid=6204, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:04:38,384 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1232 mSDsluCounter, 9638 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 9977 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:38,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 9977 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:04:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-01-18 11:04:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5450. [2022-01-18 11:04:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6269040190860706) internal successors, (14314), 5449 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14314 transitions. [2022-01-18 11:04:38,439 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14314 transitions. Word has length 137 [2022-01-18 11:04:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:38,439 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14314 transitions. [2022-01-18 11:04:38,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14314 transitions. [2022-01-18 11:04:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:38,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:38,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:38,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 11:04:38,444 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 933751745, now seen corresponding path program 6 times [2022-01-18 11:04:38,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:38,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48052263] [2022-01-18 11:04:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:38,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:39,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:39,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48052263] [2022-01-18 11:04:39,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48052263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:39,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:39,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:39,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317532949] [2022-01-18 11:04:39,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:39,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:39,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:39,095 INFO L87 Difference]: Start difference. First operand 5450 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:44,495 INFO L93 Difference]: Finished difference Result 6215 states and 16260 transitions. [2022-01-18 11:04:44,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:04:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:44,503 INFO L225 Difference]: With dead ends: 6215 [2022-01-18 11:04:44,503 INFO L226 Difference]: Without dead ends: 5893 [2022-01-18 11:04:44,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1478, Invalid=5164, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:04:44,504 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1063 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:44,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 10630 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:04:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-01-18 11:04:44,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5454. [2022-01-18 11:04:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6262607738859343) internal successors, (14321), 5453 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14321 transitions. [2022-01-18 11:04:44,560 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14321 transitions. Word has length 137 [2022-01-18 11:04:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:44,561 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14321 transitions. [2022-01-18 11:04:44,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14321 transitions. [2022-01-18 11:04:44,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:44,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:44,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:44,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 11:04:44,568 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:44,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:44,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1229354581, now seen corresponding path program 7 times [2022-01-18 11:04:44,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:44,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098923284] [2022-01-18 11:04:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:44,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:45,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:45,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098923284] [2022-01-18 11:04:45,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098923284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:45,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:45,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:45,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380814286] [2022-01-18 11:04:45,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:45,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:45,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:45,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:45,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:45,178 INFO L87 Difference]: Start difference. First operand 5454 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:49,298 INFO L93 Difference]: Finished difference Result 6122 states and 16019 transitions. [2022-01-18 11:04:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:04:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:49,306 INFO L225 Difference]: With dead ends: 6122 [2022-01-18 11:04:49,306 INFO L226 Difference]: Without dead ends: 5831 [2022-01-18 11:04:49,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1201, Invalid=4201, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:04:49,307 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1027 mSDsluCounter, 9416 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 9768 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:49,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 9768 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:04:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-01-18 11:04:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5458. [2022-01-18 11:04:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6256184716877407) internal successors, (14328), 5457 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14328 transitions. [2022-01-18 11:04:49,365 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14328 transitions. Word has length 137 [2022-01-18 11:04:49,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:49,366 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14328 transitions. [2022-01-18 11:04:49,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14328 transitions. [2022-01-18 11:04:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:49,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:49,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:49,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 11:04:49,371 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:49,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 811172927, now seen corresponding path program 8 times [2022-01-18 11:04:49,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:49,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059871033] [2022-01-18 11:04:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:49,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:50,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:50,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059871033] [2022-01-18 11:04:50,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059871033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:50,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:50,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:50,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388244590] [2022-01-18 11:04:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:50,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:50,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:50,006 INFO L87 Difference]: Start difference. First operand 5458 states and 14328 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:59,280 INFO L93 Difference]: Finished difference Result 5967 states and 15620 transitions. [2022-01-18 11:04:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:04:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:04:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:59,287 INFO L225 Difference]: With dead ends: 5967 [2022-01-18 11:04:59,287 INFO L226 Difference]: Without dead ends: 5710 [2022-01-18 11:04:59,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=955, Invalid=2827, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:04:59,288 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 996 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:59,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 8473 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:04:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-01-18 11:04:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5462. [2022-01-18 11:04:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.624977110419337) internal successors, (14335), 5461 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14335 transitions. [2022-01-18 11:04:59,344 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14335 transitions. Word has length 137 [2022-01-18 11:04:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:59,344 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14335 transitions. [2022-01-18 11:04:59,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14335 transitions. [2022-01-18 11:04:59,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:04:59,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:59,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:59,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 11:04:59,350 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1990972935, now seen corresponding path program 9 times [2022-01-18 11:04:59,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:59,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894365364] [2022-01-18 11:04:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:59,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:59,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:59,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894365364] [2022-01-18 11:04:59,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894365364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:59,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:59,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:04:59,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736327500] [2022-01-18 11:04:59,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:59,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:04:59,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:59,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:04:59,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:04:59,977 INFO L87 Difference]: Start difference. First operand 5462 states and 14335 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:03,910 INFO L93 Difference]: Finished difference Result 5970 states and 15622 transitions. [2022-01-18 11:05:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:05:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:03,919 INFO L225 Difference]: With dead ends: 5970 [2022-01-18 11:05:03,919 INFO L226 Difference]: Without dead ends: 5630 [2022-01-18 11:05:03,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=972, Invalid=3318, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:05:03,920 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 964 mSDsluCounter, 9519 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:03,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 9873 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:05:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-01-18 11:05:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5382. [2022-01-18 11:05:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.6372421482995727) internal successors, (14191), 5381 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14191 transitions. [2022-01-18 11:05:03,983 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14191 transitions. Word has length 137 [2022-01-18 11:05:03,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:03,983 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14191 transitions. [2022-01-18 11:05:03,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14191 transitions. [2022-01-18 11:05:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:03,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:03,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:03,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 11:05:03,988 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:03,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1791231757, now seen corresponding path program 10 times [2022-01-18 11:05:03,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:03,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88992134] [2022-01-18 11:05:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:03,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:04,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88992134] [2022-01-18 11:05:04,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88992134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:04,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:04,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:04,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544640296] [2022-01-18 11:05:04,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:04,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:04,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:04,638 INFO L87 Difference]: Start difference. First operand 5382 states and 14191 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:24,346 INFO L93 Difference]: Finished difference Result 6398 states and 16754 transitions. [2022-01-18 11:05:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:05:24,346 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:24,352 INFO L225 Difference]: With dead ends: 6398 [2022-01-18 11:05:24,352 INFO L226 Difference]: Without dead ends: 5476 [2022-01-18 11:05:24,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2423 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=2603, Invalid=7699, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 11:05:24,353 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1484 mSDsluCounter, 9668 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 10022 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:24,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 10022 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:05:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-01-18 11:05:24,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5340. [2022-01-18 11:05:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 2.640194793032403) internal successors, (14096), 5339 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 14096 transitions. [2022-01-18 11:05:24,400 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 14096 transitions. Word has length 137 [2022-01-18 11:05:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:24,400 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 14096 transitions. [2022-01-18 11:05:24,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 14096 transitions. [2022-01-18 11:05:24,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:24,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:24,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:24,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 11:05:24,405 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash 66333161, now seen corresponding path program 11 times [2022-01-18 11:05:24,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:24,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162471877] [2022-01-18 11:05:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:24,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:24,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:24,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162471877] [2022-01-18 11:05:24,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162471877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:24,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:24,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:24,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574227153] [2022-01-18 11:05:24,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:24,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:24,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:24,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:24,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:24,977 INFO L87 Difference]: Start difference. First operand 5340 states and 14096 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:34,201 INFO L93 Difference]: Finished difference Result 7586 states and 19772 transitions. [2022-01-18 11:05:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 11:05:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:34,210 INFO L225 Difference]: With dead ends: 7586 [2022-01-18 11:05:34,210 INFO L226 Difference]: Without dead ends: 6613 [2022-01-18 11:05:34,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2644 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2926, Invalid=8204, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 11:05:34,211 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 2029 mSDsluCounter, 9408 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 9780 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:34,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 9780 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:05:34,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-01-18 11:05:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5364. [2022-01-18 11:05:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5363 states have (on average 2.638448629498415) internal successors, (14150), 5363 states have internal predecessors, (14150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14150 transitions. [2022-01-18 11:05:34,268 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14150 transitions. Word has length 137 [2022-01-18 11:05:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:34,269 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 14150 transitions. [2022-01-18 11:05:34,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14150 transitions. [2022-01-18 11:05:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:34,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:34,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:34,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 11:05:34,274 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:34,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:34,274 INFO L85 PathProgramCache]: Analyzing trace with hash -162448323, now seen corresponding path program 12 times [2022-01-18 11:05:34,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:34,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315958833] [2022-01-18 11:05:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:34,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:34,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:34,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315958833] [2022-01-18 11:05:34,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315958833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:34,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:34,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:34,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475051482] [2022-01-18 11:05:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:34,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:34,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:34,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:34,822 INFO L87 Difference]: Start difference. First operand 5364 states and 14150 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:40,878 INFO L93 Difference]: Finished difference Result 7476 states and 19554 transitions. [2022-01-18 11:05:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 11:05:40,878 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:40,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:40,886 INFO L225 Difference]: With dead ends: 7476 [2022-01-18 11:05:40,886 INFO L226 Difference]: Without dead ends: 6627 [2022-01-18 11:05:40,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2165 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2340, Invalid=7166, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 11:05:40,887 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1632 mSDsluCounter, 10424 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 10751 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:40,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 10751 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:05:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2022-01-18 11:05:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 5420. [2022-01-18 11:05:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 2.630005536076767) internal successors, (14252), 5419 states have internal predecessors, (14252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14252 transitions. [2022-01-18 11:05:40,948 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14252 transitions. Word has length 137 [2022-01-18 11:05:40,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:40,948 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 14252 transitions. [2022-01-18 11:05:40,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14252 transitions. [2022-01-18 11:05:40,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:40,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:40,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:40,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 11:05:40,953 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:40,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1718511387, now seen corresponding path program 13 times [2022-01-18 11:05:40,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:40,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334331108] [2022-01-18 11:05:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:40,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:41,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334331108] [2022-01-18 11:05:41,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334331108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:41,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:41,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:41,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807906780] [2022-01-18 11:05:41,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:41,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:41,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:41,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:41,612 INFO L87 Difference]: Start difference. First operand 5420 states and 14252 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:47,538 INFO L93 Difference]: Finished difference Result 7042 states and 18396 transitions. [2022-01-18 11:05:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:05:47,539 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:47,547 INFO L225 Difference]: With dead ends: 7042 [2022-01-18 11:05:47,547 INFO L226 Difference]: Without dead ends: 6596 [2022-01-18 11:05:47,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2072, Invalid=6670, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:05:47,548 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1556 mSDsluCounter, 9588 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 9929 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:47,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 9929 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:05:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-01-18 11:05:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5424. [2022-01-18 11:05:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-18 11:05:47,604 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-18 11:05:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:47,604 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-18 11:05:47,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-18 11:05:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:47,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:47,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:47,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 11:05:47,609 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:47,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:47,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1129650973, now seen corresponding path program 14 times [2022-01-18 11:05:47,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:47,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333421594] [2022-01-18 11:05:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:47,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:48,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:48,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333421594] [2022-01-18 11:05:48,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333421594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:48,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:48,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:48,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307833229] [2022-01-18 11:05:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:48,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:48,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:48,226 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:54,627 INFO L93 Difference]: Finished difference Result 6804 states and 17849 transitions. [2022-01-18 11:05:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:05:54,628 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:54,636 INFO L225 Difference]: With dead ends: 6804 [2022-01-18 11:05:54,636 INFO L226 Difference]: Without dead ends: 6389 [2022-01-18 11:05:54,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1824, Invalid=6186, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:05:54,637 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1169 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 8950 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:54,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 8950 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:05:54,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-01-18 11:05:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5436. [2022-01-18 11:05:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-18 11:05:54,694 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-18 11:05:54,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:54,694 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-18 11:05:54,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-18 11:05:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:54,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:54,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:54,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 11:05:54,699 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:54,699 INFO L85 PathProgramCache]: Analyzing trace with hash 701674921, now seen corresponding path program 15 times [2022-01-18 11:05:54,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:54,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453012244] [2022-01-18 11:05:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:54,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:55,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453012244] [2022-01-18 11:05:55,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453012244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:55,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:55,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:05:55,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797650221] [2022-01-18 11:05:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:55,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:05:55,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:55,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:05:55,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:05:55,256 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:59,674 INFO L93 Difference]: Finished difference Result 6649 states and 17442 transitions. [2022-01-18 11:05:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:05:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:05:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:59,683 INFO L225 Difference]: With dead ends: 6649 [2022-01-18 11:05:59,683 INFO L226 Difference]: Without dead ends: 6327 [2022-01-18 11:05:59,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1492, Invalid=5150, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:05:59,684 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1095 mSDsluCounter, 8911 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:59,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 9275 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:05:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-18 11:05:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5440. [2022-01-18 11:05:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-18 11:05:59,750 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-18 11:05:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:59,750 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-18 11:05:59,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-18 11:05:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:05:59,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:59,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:59,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 11:05:59,755 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 997277757, now seen corresponding path program 16 times [2022-01-18 11:05:59,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:59,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600364326] [2022-01-18 11:05:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:59,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:00,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:00,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600364326] [2022-01-18 11:06:00,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600364326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:00,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:00,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:00,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387928123] [2022-01-18 11:06:00,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:00,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:00,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:00,327 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:04,720 INFO L93 Difference]: Finished difference Result 6556 states and 17201 transitions. [2022-01-18 11:06:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:06:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:04,729 INFO L225 Difference]: With dead ends: 6556 [2022-01-18 11:06:04,729 INFO L226 Difference]: Without dead ends: 6265 [2022-01-18 11:06:04,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1208, Invalid=4194, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:06:04,730 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 1019 mSDsluCounter, 9315 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 9669 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:04,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 9669 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:06:04,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-01-18 11:06:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5444. [2022-01-18 11:06:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-18 11:06:04,785 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-18 11:06:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:04,785 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-18 11:06:04,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-18 11:06:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:04,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:04,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:04,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 11:06:04,790 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash 579096103, now seen corresponding path program 17 times [2022-01-18 11:06:04,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:04,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069936604] [2022-01-18 11:06:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:04,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:05,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:05,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069936604] [2022-01-18 11:06:05,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069936604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:05,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:05,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:05,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787609621] [2022-01-18 11:06:05,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:05,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:05,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:05,369 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:08,650 INFO L93 Difference]: Finished difference Result 6401 states and 16802 transitions. [2022-01-18 11:06:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:06:08,650 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:08,658 INFO L225 Difference]: With dead ends: 6401 [2022-01-18 11:06:08,658 INFO L226 Difference]: Without dead ends: 6144 [2022-01-18 11:06:08,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=954, Invalid=2828, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:06:08,658 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 977 mSDsluCounter, 8956 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9324 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:08,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 9324 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:06:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2022-01-18 11:06:08,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 5448. [2022-01-18 11:06:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-18 11:06:08,716 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-18 11:06:08,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:08,716 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-18 11:06:08,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-18 11:06:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:08,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:08,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:08,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 11:06:08,722 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:08,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2071917537, now seen corresponding path program 18 times [2022-01-18 11:06:08,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:08,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419183863] [2022-01-18 11:06:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:08,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:09,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:09,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419183863] [2022-01-18 11:06:09,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419183863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:09,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:09,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:09,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387063805] [2022-01-18 11:06:09,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:09,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:09,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:09,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:09,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:09,327 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:13,275 INFO L93 Difference]: Finished difference Result 6404 states and 16804 transitions. [2022-01-18 11:06:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:06:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:13,282 INFO L225 Difference]: With dead ends: 6404 [2022-01-18 11:06:13,282 INFO L226 Difference]: Without dead ends: 6064 [2022-01-18 11:06:13,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=978, Invalid=3312, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:06:13,283 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1038 mSDsluCounter, 9056 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:13,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 9425 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:06:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2022-01-18 11:06:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 5368. [2022-01-18 11:06:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 2.6377864728898825) internal successors, (14157), 5367 states have internal predecessors, (14157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 14157 transitions. [2022-01-18 11:06:13,333 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 14157 transitions. Word has length 137 [2022-01-18 11:06:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:13,333 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 14157 transitions. [2022-01-18 11:06:13,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 14157 transitions. [2022-01-18 11:06:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:13,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:13,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:13,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 11:06:13,339 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:13,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2023308581, now seen corresponding path program 19 times [2022-01-18 11:06:13,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:13,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926136415] [2022-01-18 11:06:13,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:13,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:13,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:13,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926136415] [2022-01-18 11:06:13,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926136415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:13,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:13,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:13,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972018969] [2022-01-18 11:06:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:13,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:13,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:13,862 INFO L87 Difference]: Start difference. First operand 5368 states and 14157 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:20,421 INFO L93 Difference]: Finished difference Result 6832 states and 17936 transitions. [2022-01-18 11:06:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:06:20,421 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:20,428 INFO L225 Difference]: With dead ends: 6832 [2022-01-18 11:06:20,428 INFO L226 Difference]: Without dead ends: 5936 [2022-01-18 11:06:20,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2624, Invalid=7678, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 11:06:20,430 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1554 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 9890 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:20,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 9890 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:06:20,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-01-18 11:06:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5352. [2022-01-18 11:06:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 2.638198467576154) internal successors, (14117), 5351 states have internal predecessors, (14117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 14117 transitions. [2022-01-18 11:06:20,484 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 14117 transitions. Word has length 137 [2022-01-18 11:06:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:20,484 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 14117 transitions. [2022-01-18 11:06:20,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 14117 transitions. [2022-01-18 11:06:20,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:20,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:20,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:20,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 11:06:20,489 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:20,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1583190413, now seen corresponding path program 20 times [2022-01-18 11:06:20,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:20,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042076891] [2022-01-18 11:06:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:20,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:20,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:20,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042076891] [2022-01-18 11:06:20,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042076891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:20,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:20,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:20,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711087849] [2022-01-18 11:06:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:20,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:20,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:20,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:20,998 INFO L87 Difference]: Start difference. First operand 5352 states and 14117 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:31,205 INFO L93 Difference]: Finished difference Result 7348 states and 19206 transitions. [2022-01-18 11:06:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 11:06:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:31,218 INFO L225 Difference]: With dead ends: 7348 [2022-01-18 11:06:31,218 INFO L226 Difference]: Without dead ends: 6499 [2022-01-18 11:06:31,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2384, Invalid=7122, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 11:06:31,219 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1619 mSDsluCounter, 9121 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 9484 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:31,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1619 Valid, 9484 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:06:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-01-18 11:06:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5460. [2022-01-18 11:06:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 5459 states have (on average 2.630884777431764) internal successors, (14362), 5459 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 14362 transitions. [2022-01-18 11:06:31,280 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 14362 transitions. Word has length 137 [2022-01-18 11:06:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:31,280 INFO L470 AbstractCegarLoop]: Abstraction has 5460 states and 14362 transitions. [2022-01-18 11:06:31,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 14362 transitions. [2022-01-18 11:06:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:31,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:31,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:31,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 11:06:31,285 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:31,286 INFO L85 PathProgramCache]: Analyzing trace with hash 456465329, now seen corresponding path program 21 times [2022-01-18 11:06:31,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:31,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873750963] [2022-01-18 11:06:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:31,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:31,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:31,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873750963] [2022-01-18 11:06:31,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873750963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:31,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:31,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:31,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859212478] [2022-01-18 11:06:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:31,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:31,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:31,947 INFO L87 Difference]: Start difference. First operand 5460 states and 14362 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:39,668 INFO L93 Difference]: Finished difference Result 7026 states and 18348 transitions. [2022-01-18 11:06:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:06:39,668 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:39,675 INFO L225 Difference]: With dead ends: 7026 [2022-01-18 11:06:39,675 INFO L226 Difference]: Without dead ends: 6580 [2022-01-18 11:06:39,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1950 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2114, Invalid=6628, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:06:39,676 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1403 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 9955 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:39,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1403 Valid, 9955 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:06:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-01-18 11:06:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5464. [2022-01-18 11:06:39,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5463 states have (on average 2.630239794984441) internal successors, (14369), 5463 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14369 transitions. [2022-01-18 11:06:39,727 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14369 transitions. Word has length 137 [2022-01-18 11:06:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:39,727 INFO L470 AbstractCegarLoop]: Abstraction has 5464 states and 14369 transitions. [2022-01-18 11:06:39,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14369 transitions. [2022-01-18 11:06:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:39,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:39,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:39,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 11:06:39,733 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1045325743, now seen corresponding path program 22 times [2022-01-18 11:06:39,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:39,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820896212] [2022-01-18 11:06:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:39,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:40,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:40,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820896212] [2022-01-18 11:06:40,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820896212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:40,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:40,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:40,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926621795] [2022-01-18 11:06:40,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:40,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:40,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:40,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:40,305 INFO L87 Difference]: Start difference. First operand 5464 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:46,157 INFO L93 Difference]: Finished difference Result 6800 states and 17830 transitions. [2022-01-18 11:06:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:06:46,157 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:46,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:46,166 INFO L225 Difference]: With dead ends: 6800 [2022-01-18 11:06:46,166 INFO L226 Difference]: Without dead ends: 6385 [2022-01-18 11:06:46,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1858, Invalid=6152, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:06:46,167 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1200 mSDsluCounter, 9518 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 9858 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:46,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 9858 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:06:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-01-18 11:06:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5476. [2022-01-18 11:06:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 2.628310502283105) internal successors, (14390), 5475 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14390 transitions. [2022-01-18 11:06:46,224 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14390 transitions. Word has length 137 [2022-01-18 11:06:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:46,224 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 14390 transitions. [2022-01-18 11:06:46,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14390 transitions. [2022-01-18 11:06:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:46,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:46,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:46,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 11:06:46,230 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1418315659, now seen corresponding path program 23 times [2022-01-18 11:06:46,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:46,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28484095] [2022-01-18 11:06:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:46,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:46,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:46,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28484095] [2022-01-18 11:06:46,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28484095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:46,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:46,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:46,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141093180] [2022-01-18 11:06:46,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:46,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:46,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:46,776 INFO L87 Difference]: Start difference. First operand 5476 states and 14390 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:52,848 INFO L93 Difference]: Finished difference Result 6649 states and 17434 transitions. [2022-01-18 11:06:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:06:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:52,855 INFO L225 Difference]: With dead ends: 6649 [2022-01-18 11:06:52,856 INFO L226 Difference]: Without dead ends: 6327 [2022-01-18 11:06:52,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1520, Invalid=5122, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:06:52,856 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1117 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9581 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:52,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9581 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:06:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-18 11:06:52,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5480. [2022-01-18 11:06:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 2.627669282715824) internal successors, (14397), 5479 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14397 transitions. [2022-01-18 11:06:52,907 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14397 transitions. Word has length 137 [2022-01-18 11:06:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:52,907 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 14397 transitions. [2022-01-18 11:06:52,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14397 transitions. [2022-01-18 11:06:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:52,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:52,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:52,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 11:06:52,913 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1122712823, now seen corresponding path program 24 times [2022-01-18 11:06:52,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:52,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933663772] [2022-01-18 11:06:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:52,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:53,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:53,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:53,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933663772] [2022-01-18 11:06:53,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933663772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:53,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:53,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:53,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109490862] [2022-01-18 11:06:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:53,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:53,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:53,436 INFO L87 Difference]: Start difference. First operand 5480 states and 14397 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:57,562 INFO L93 Difference]: Finished difference Result 6560 states and 17204 transitions. [2022-01-18 11:06:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:06:57,562 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:06:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:57,570 INFO L225 Difference]: With dead ends: 6560 [2022-01-18 11:06:57,570 INFO L226 Difference]: Without dead ends: 6269 [2022-01-18 11:06:57,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1228, Invalid=4174, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:06:57,571 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 1023 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 9638 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:57,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 9638 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:06:57,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2022-01-18 11:06:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 5484. [2022-01-18 11:06:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 2.627028998723327) internal successors, (14404), 5483 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14404 transitions. [2022-01-18 11:06:57,628 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14404 transitions. Word has length 137 [2022-01-18 11:06:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:57,628 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14404 transitions. [2022-01-18 11:06:57,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14404 transitions. [2022-01-18 11:06:57,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:06:57,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:57,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:57,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 11:06:57,633 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:57,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:57,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1540894477, now seen corresponding path program 25 times [2022-01-18 11:06:57,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:57,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585199846] [2022-01-18 11:06:57,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:57,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:58,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:58,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585199846] [2022-01-18 11:06:58,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585199846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:58,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:58,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:06:58,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289604188] [2022-01-18 11:06:58,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:58,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:06:58,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:58,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:06:58,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:06:58,164 INFO L87 Difference]: Start difference. First operand 5484 states and 14404 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:01,919 INFO L93 Difference]: Finished difference Result 6417 states and 16838 transitions. [2022-01-18 11:07:01,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:07:01,919 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:01,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:01,928 INFO L225 Difference]: With dead ends: 6417 [2022-01-18 11:07:01,928 INFO L226 Difference]: Without dead ends: 6160 [2022-01-18 11:07:01,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:07:01,928 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 938 mSDsluCounter, 7863 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:01,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 8249 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:07:01,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2022-01-18 11:07:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 5488. [2022-01-18 11:07:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 2.6263896482595226) internal successors, (14411), 5487 states have internal predecessors, (14411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 14411 transitions. [2022-01-18 11:07:01,991 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 14411 transitions. Word has length 137 [2022-01-18 11:07:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:01,991 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 14411 transitions. [2022-01-18 11:07:01,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 14411 transitions. [2022-01-18 11:07:01,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:01,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:01,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:01,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 11:07:01,998 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:01,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash -48073043, now seen corresponding path program 26 times [2022-01-18 11:07:01,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:01,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198526474] [2022-01-18 11:07:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:01,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:02,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:02,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198526474] [2022-01-18 11:07:02,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198526474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:02,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:02,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:02,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902925751] [2022-01-18 11:07:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:02,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:02,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:02,622 INFO L87 Difference]: Start difference. First operand 5488 states and 14411 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:06,869 INFO L93 Difference]: Finished difference Result 6388 states and 16756 transitions. [2022-01-18 11:07:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:07:06,870 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:06,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:06,877 INFO L225 Difference]: With dead ends: 6388 [2022-01-18 11:07:06,877 INFO L226 Difference]: Without dead ends: 6048 [2022-01-18 11:07:06,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=987, Invalid=3303, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:07:06,878 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 920 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 10122 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:06,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [920 Valid, 10122 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:07:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2022-01-18 11:07:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 5408. [2022-01-18 11:07:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.629739226928056) internal successors, (14219), 5407 states have internal predecessors, (14219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 14219 transitions. [2022-01-18 11:07:06,955 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 14219 transitions. Word has length 137 [2022-01-18 11:07:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:06,956 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 14219 transitions. [2022-01-18 11:07:06,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 14219 transitions. [2022-01-18 11:07:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:06,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:06,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:06,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 11:07:06,963 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:06,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1945541703, now seen corresponding path program 27 times [2022-01-18 11:07:06,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:06,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968263224] [2022-01-18 11:07:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:06,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:07,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:07,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968263224] [2022-01-18 11:07:07,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968263224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:07,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:07,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:07,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596693234] [2022-01-18 11:07:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:07,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:07,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:07,489 INFO L87 Difference]: Start difference. First operand 5408 states and 14219 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:12,532 INFO L93 Difference]: Finished difference Result 6437 states and 16883 transitions. [2022-01-18 11:07:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:07:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:12,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:12,539 INFO L225 Difference]: With dead ends: 6437 [2022-01-18 11:07:12,539 INFO L226 Difference]: Without dead ends: 6115 [2022-01-18 11:07:12,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1519, Invalid=4961, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 11:07:12,540 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 1072 mSDsluCounter, 9201 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 9532 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:12,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 9532 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-01-18 11:07:12,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 5432. [2022-01-18 11:07:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6295341557724177) internal successors, (14281), 5431 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14281 transitions. [2022-01-18 11:07:12,593 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14281 transitions. Word has length 137 [2022-01-18 11:07:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:12,594 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14281 transitions. [2022-01-18 11:07:12,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14281 transitions. [2022-01-18 11:07:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:12,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:12,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:12,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 11:07:12,599 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:12,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2053822757, now seen corresponding path program 28 times [2022-01-18 11:07:12,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:12,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481117561] [2022-01-18 11:07:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:12,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:13,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:13,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481117561] [2022-01-18 11:07:13,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481117561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:13,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:13,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:13,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766465071] [2022-01-18 11:07:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:13,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:13,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:13,188 INFO L87 Difference]: Start difference. First operand 5432 states and 14281 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:21,020 INFO L93 Difference]: Finished difference Result 6380 states and 16741 transitions. [2022-01-18 11:07:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:07:21,020 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:21,027 INFO L225 Difference]: With dead ends: 6380 [2022-01-18 11:07:21,027 INFO L226 Difference]: Without dead ends: 6089 [2022-01-18 11:07:21,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1260, Invalid=4142, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:07:21,028 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1072 mSDsluCounter, 8433 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 8795 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:21,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 8795 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:21,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2022-01-18 11:07:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5436. [2022-01-18 11:07:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-18 11:07:21,084 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-18 11:07:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:21,084 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-18 11:07:21,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-18 11:07:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:21,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:21,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:21,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 11:07:21,090 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:21,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1822962885, now seen corresponding path program 29 times [2022-01-18 11:07:21,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:21,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056148588] [2022-01-18 11:07:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:21,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:21,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:21,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056148588] [2022-01-18 11:07:21,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056148588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:21,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:21,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:21,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927908996] [2022-01-18 11:07:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:21,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:21,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:21,672 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:27,339 INFO L93 Difference]: Finished difference Result 6277 states and 16477 transitions. [2022-01-18 11:07:27,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:07:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:27,346 INFO L225 Difference]: With dead ends: 6277 [2022-01-18 11:07:27,346 INFO L226 Difference]: Without dead ends: 6020 [2022-01-18 11:07:27,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1026, Invalid=3006, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:07:27,347 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 923 mSDsluCounter, 9435 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 9770 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:27,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 9770 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-01-18 11:07:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5440. [2022-01-18 11:07:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-18 11:07:27,409 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-18 11:07:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:27,409 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-18 11:07:27,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-18 11:07:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:27,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:27,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:27,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 11:07:27,414 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:27,415 INFO L85 PathProgramCache]: Analyzing trace with hash -979182977, now seen corresponding path program 30 times [2022-01-18 11:07:27,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:27,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865583245] [2022-01-18 11:07:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:27,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:27,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:27,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865583245] [2022-01-18 11:07:27,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865583245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:27,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:27,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:27,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728811307] [2022-01-18 11:07:27,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:27,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:27,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:27,941 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:32,575 INFO L93 Difference]: Finished difference Result 6248 states and 16395 transitions. [2022-01-18 11:07:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:07:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:32,582 INFO L225 Difference]: With dead ends: 6248 [2022-01-18 11:07:32,582 INFO L226 Difference]: Without dead ends: 5976 [2022-01-18 11:07:32,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1006, Invalid=3284, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:07:32,582 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1010 mSDsluCounter, 7945 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:32,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 8323 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-01-18 11:07:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5428. [2022-01-18 11:07:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.6294453657637735) internal successors, (14270), 5427 states have internal predecessors, (14270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14270 transitions. [2022-01-18 11:07:32,632 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14270 transitions. Word has length 137 [2022-01-18 11:07:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:32,632 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14270 transitions. [2022-01-18 11:07:32,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14270 transitions. [2022-01-18 11:07:32,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:32,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:32,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:32,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 11:07:32,637 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:32,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1535630111, now seen corresponding path program 31 times [2022-01-18 11:07:32,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:32,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776931039] [2022-01-18 11:07:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:32,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:33,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:33,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776931039] [2022-01-18 11:07:33,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776931039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:33,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:33,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:33,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904441418] [2022-01-18 11:07:33,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:33,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:33,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:33,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:33,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:33,162 INFO L87 Difference]: Start difference. First operand 5428 states and 14270 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:37,400 INFO L93 Difference]: Finished difference Result 6193 states and 16254 transitions. [2022-01-18 11:07:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:07:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:37,407 INFO L225 Difference]: With dead ends: 6193 [2022-01-18 11:07:37,407 INFO L226 Difference]: Without dead ends: 5908 [2022-01-18 11:07:37,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1290, Invalid=3540, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:07:37,408 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 971 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:37,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 8928 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-01-18 11:07:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5436. [2022-01-18 11:07:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-18 11:07:37,467 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-18 11:07:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:37,467 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-18 11:07:37,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-18 11:07:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:37,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:37,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:37,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 11:07:37,472 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1515375091, now seen corresponding path program 32 times [2022-01-18 11:07:37,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:37,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894663163] [2022-01-18 11:07:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:37,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:38,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:38,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894663163] [2022-01-18 11:07:38,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894663163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:38,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:38,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:38,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404738418] [2022-01-18 11:07:38,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:38,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:38,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:38,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:38,077 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:41,893 INFO L93 Difference]: Finished difference Result 6201 states and 16272 transitions. [2022-01-18 11:07:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:07:41,893 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:41,901 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 11:07:41,901 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 11:07:41,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1102, Invalid=3188, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:07:41,902 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 975 mSDsluCounter, 8928 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 9280 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:41,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 9280 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 11:07:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 11:07:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-18 11:07:41,955 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-18 11:07:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:41,955 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-18 11:07:41,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-18 11:07:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:41,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:41,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:41,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 11:07:41,960 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:41,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash -22553657, now seen corresponding path program 33 times [2022-01-18 11:07:41,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:41,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074831850] [2022-01-18 11:07:41,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:41,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:42,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:42,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074831850] [2022-01-18 11:07:42,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074831850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:42,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:42,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:42,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567874390] [2022-01-18 11:07:42,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:42,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:42,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:42,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:42,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:42,522 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:48,791 INFO L93 Difference]: Finished difference Result 6172 states and 16190 transitions. [2022-01-18 11:07:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:07:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:48,798 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 11:07:48,798 INFO L226 Difference]: Without dead ends: 5904 [2022-01-18 11:07:48,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=972, Invalid=3188, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:07:48,799 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 999 mSDsluCounter, 7850 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:48,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 8236 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-01-18 11:07:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5432. [2022-01-18 11:07:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.628797643159639) internal successors, (14277), 5431 states have internal predecessors, (14277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14277 transitions. [2022-01-18 11:07:48,851 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14277 transitions. Word has length 137 [2022-01-18 11:07:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:48,851 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14277 transitions. [2022-01-18 11:07:48,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14277 transitions. [2022-01-18 11:07:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:48,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:48,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:48,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 11:07:48,856 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:48,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1014872227, now seen corresponding path program 34 times [2022-01-18 11:07:48,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063531034] [2022-01-18 11:07:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:48,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:49,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:49,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063531034] [2022-01-18 11:07:49,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063531034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:49,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:49,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:49,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974004252] [2022-01-18 11:07:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:49,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:49,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:49,366 INFO L87 Difference]: Start difference. First operand 5432 states and 14277 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:53,415 INFO L93 Difference]: Finished difference Result 6304 states and 16532 transitions. [2022-01-18 11:07:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:07:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:53,423 INFO L225 Difference]: With dead ends: 6304 [2022-01-18 11:07:53,423 INFO L226 Difference]: Without dead ends: 6013 [2022-01-18 11:07:53,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1225, Invalid=4031, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:07:53,424 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1074 mSDsluCounter, 9017 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 9364 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:53,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 9364 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:07:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-01-18 11:07:53,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5436. [2022-01-18 11:07:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6281508739650414) internal successors, (14284), 5435 states have internal predecessors, (14284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14284 transitions. [2022-01-18 11:07:53,479 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14284 transitions. Word has length 137 [2022-01-18 11:07:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:53,480 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14284 transitions. [2022-01-18 11:07:53,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14284 transitions. [2022-01-18 11:07:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:53,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:53,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:53,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 11:07:53,485 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:53,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1433053881, now seen corresponding path program 35 times [2022-01-18 11:07:53,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:53,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909501235] [2022-01-18 11:07:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:53,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:54,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:54,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909501235] [2022-01-18 11:07:54,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909501235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:54,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:54,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:54,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188778138] [2022-01-18 11:07:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:54,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:54,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:54,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:54,024 INFO L87 Difference]: Start difference. First operand 5436 states and 14284 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:59,206 INFO L93 Difference]: Finished difference Result 6201 states and 16268 transitions. [2022-01-18 11:07:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:07:59,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:07:59,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:59,212 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 11:07:59,212 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 11:07:59,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1065, Invalid=3095, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:07:59,213 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 988 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:59,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 8672 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:07:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 11:07:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 11:07:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6275050560764845) internal successors, (14291), 5439 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14291 transitions. [2022-01-18 11:07:59,263 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14291 transitions. Word has length 137 [2022-01-18 11:07:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:59,263 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14291 transitions. [2022-01-18 11:07:59,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14291 transitions. [2022-01-18 11:07:59,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:07:59,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:59,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:59,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 11:07:59,268 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:59,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:59,269 INFO L85 PathProgramCache]: Analyzing trace with hash 59767553, now seen corresponding path program 36 times [2022-01-18 11:07:59,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:59,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135493376] [2022-01-18 11:07:59,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:59,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:59,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:59,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135493376] [2022-01-18 11:07:59,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135493376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:59,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:59,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:07:59,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085558138] [2022-01-18 11:07:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:59,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:07:59,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:59,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:07:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:07:59,801 INFO L87 Difference]: Start difference. First operand 5440 states and 14291 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:04,534 INFO L93 Difference]: Finished difference Result 6172 states and 16186 transitions. [2022-01-18 11:08:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:04,542 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 11:08:04,542 INFO L226 Difference]: Without dead ends: 5896 [2022-01-18 11:08:04,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1011, Invalid=3279, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:08:04,543 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 997 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:04,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 9505 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:04,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-18 11:08:04,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5424. [2022-01-18 11:08:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-18 11:08:04,599 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-18 11:08:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:04,600 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-18 11:08:04,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-18 11:08:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:04,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:04,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:04,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 11:08:04,605 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 40724957, now seen corresponding path program 37 times [2022-01-18 11:08:04,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:04,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386297988] [2022-01-18 11:08:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:04,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:05,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:05,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386297988] [2022-01-18 11:08:05,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386297988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:05,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:05,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:05,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727712958] [2022-01-18 11:08:05,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:05,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:05,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:05,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:05,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:05,158 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:12,111 INFO L93 Difference]: Finished difference Result 6568 states and 17212 transitions. [2022-01-18 11:08:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 11:08:12,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:12,118 INFO L225 Difference]: With dead ends: 6568 [2022-01-18 11:08:12,118 INFO L226 Difference]: Without dead ends: 6153 [2022-01-18 11:08:12,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1857, Invalid=5975, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 11:08:12,119 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1199 mSDsluCounter, 9332 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 9662 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:12,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 9662 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:08:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-01-18 11:08:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5436. [2022-01-18 11:08:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-18 11:08:12,182 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-18 11:08:12,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:12,182 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-18 11:08:12,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-18 11:08:12,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:12,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:12,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:12,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 11:08:12,188 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1859617531, now seen corresponding path program 38 times [2022-01-18 11:08:12,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:12,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912771488] [2022-01-18 11:08:12,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:12,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:12,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:12,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912771488] [2022-01-18 11:08:12,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912771488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:12,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:12,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:12,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169910059] [2022-01-18 11:08:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:12,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:12,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:12,844 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:22,013 INFO L93 Difference]: Finished difference Result 6417 states and 16816 transitions. [2022-01-18 11:08:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:08:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:22,021 INFO L225 Difference]: With dead ends: 6417 [2022-01-18 11:08:22,022 INFO L226 Difference]: Without dead ends: 6095 [2022-01-18 11:08:22,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1549, Invalid=5093, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:08:22,023 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1169 mSDsluCounter, 8311 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 8675 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:22,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 8675 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-01-18 11:08:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5440. [2022-01-18 11:08:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-18 11:08:22,082 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-18 11:08:22,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:22,082 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-18 11:08:22,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-18 11:08:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:22,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:22,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:22,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 11:08:22,087 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:22,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1564014695, now seen corresponding path program 39 times [2022-01-18 11:08:22,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:22,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058535636] [2022-01-18 11:08:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:22,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:22,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:22,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058535636] [2022-01-18 11:08:22,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058535636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:22,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:22,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:22,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714519812] [2022-01-18 11:08:22,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:22,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:22,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:22,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:22,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:22,617 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:28,542 INFO L93 Difference]: Finished difference Result 6328 states and 16586 transitions. [2022-01-18 11:08:28,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:08:28,542 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:28,549 INFO L225 Difference]: With dead ends: 6328 [2022-01-18 11:08:28,549 INFO L226 Difference]: Without dead ends: 6037 [2022-01-18 11:08:28,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1253, Invalid=4149, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:08:28,550 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1060 mSDsluCounter, 8558 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:28,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 8922 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2022-01-18 11:08:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5444. [2022-01-18 11:08:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-18 11:08:28,605 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-18 11:08:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:28,605 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-18 11:08:28,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-18 11:08:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:28,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:28,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:28,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 11:08:28,610 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:28,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:28,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1982196349, now seen corresponding path program 40 times [2022-01-18 11:08:28,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:28,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751048701] [2022-01-18 11:08:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:28,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:29,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:29,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751048701] [2022-01-18 11:08:29,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751048701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:29,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:29,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:29,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942827777] [2022-01-18 11:08:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:29,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:29,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:29,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:29,111 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:32,648 INFO L93 Difference]: Finished difference Result 6209 states and 16278 transitions. [2022-01-18 11:08:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:08:32,648 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:32,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:32,656 INFO L225 Difference]: With dead ends: 6209 [2022-01-18 11:08:32,656 INFO L226 Difference]: Without dead ends: 5952 [2022-01-18 11:08:32,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=991, Invalid=2915, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:08:32,656 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 974 mSDsluCounter, 9256 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 9596 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:32,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 9596 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-01-18 11:08:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5448. [2022-01-18 11:08:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-18 11:08:32,711 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-18 11:08:32,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:32,711 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-18 11:08:32,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-18 11:08:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:32,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:32,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:32,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 11:08:32,717 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash -489374915, now seen corresponding path program 41 times [2022-01-18 11:08:32,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:32,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806941832] [2022-01-18 11:08:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:32,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:33,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:33,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806941832] [2022-01-18 11:08:33,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806941832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:33,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:33,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:33,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510633855] [2022-01-18 11:08:33,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:33,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:33,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:33,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:33,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:33,262 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:36,774 INFO L93 Difference]: Finished difference Result 6180 states and 16196 transitions. [2022-01-18 11:08:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:36,774 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:36,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:36,780 INFO L225 Difference]: With dead ends: 6180 [2022-01-18 11:08:36,780 INFO L226 Difference]: Without dead ends: 5884 [2022-01-18 11:08:36,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1004, Invalid=3286, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:08:36,781 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 922 mSDsluCounter, 7861 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:36,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 8247 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:08:36,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-01-18 11:08:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5412. [2022-01-18 11:08:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-18 11:08:36,830 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-18 11:08:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:36,830 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-18 11:08:36,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-18 11:08:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:36,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:36,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:36,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 11:08:36,835 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:36,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1311377081, now seen corresponding path program 42 times [2022-01-18 11:08:36,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:36,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239721978] [2022-01-18 11:08:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:36,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:37,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:37,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:37,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239721978] [2022-01-18 11:08:37,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239721978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:37,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:37,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:37,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373515063] [2022-01-18 11:08:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:37,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:37,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:37,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:37,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:37,355 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:44,913 INFO L93 Difference]: Finished difference Result 6810 states and 17762 transitions. [2022-01-18 11:08:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:08:44,913 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:44,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:44,922 INFO L225 Difference]: With dead ends: 6810 [2022-01-18 11:08:44,922 INFO L226 Difference]: Without dead ends: 6364 [2022-01-18 11:08:44,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2134, Invalid=6608, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:08:44,923 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1408 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:44,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 9332 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-01-18 11:08:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 5416. [2022-01-18 11:08:44,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-18 11:08:44,978 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-18 11:08:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:44,978 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-18 11:08:44,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-18 11:08:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:44,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:44,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:44,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 11:08:44,983 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash -722516667, now seen corresponding path program 43 times [2022-01-18 11:08:44,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:44,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116766634] [2022-01-18 11:08:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:44,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:45,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:45,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116766634] [2022-01-18 11:08:45,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116766634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:45,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:45,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:45,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397877001] [2022-01-18 11:08:45,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:45,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:45,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:45,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:45,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:45,529 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:55,974 INFO L93 Difference]: Finished difference Result 6584 states and 17244 transitions. [2022-01-18 11:08:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:08:55,974 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:08:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:55,981 INFO L225 Difference]: With dead ends: 6584 [2022-01-18 11:08:55,981 INFO L226 Difference]: Without dead ends: 6169 [2022-01-18 11:08:55,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1727 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1878, Invalid=6132, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:08:55,982 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1184 mSDsluCounter, 8303 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 8671 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:55,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 8671 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:08:55,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-18 11:08:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5428. [2022-01-18 11:08:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-18 11:08:56,034 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-18 11:08:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:56,034 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-18 11:08:56,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-18 11:08:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:08:56,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:56,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:56,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 11:08:56,040 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1108809227, now seen corresponding path program 44 times [2022-01-18 11:08:56,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:56,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956745208] [2022-01-18 11:08:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:56,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:56,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:56,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956745208] [2022-01-18 11:08:56,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956745208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:56,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:56,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:08:56,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994496306] [2022-01-18 11:08:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:56,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:08:56,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:08:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:08:56,520 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:01,235 INFO L93 Difference]: Finished difference Result 6433 states and 16848 transitions. [2022-01-18 11:09:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:09:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:01,243 INFO L225 Difference]: With dead ends: 6433 [2022-01-18 11:09:01,243 INFO L226 Difference]: Without dead ends: 6111 [2022-01-18 11:09:01,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1532, Invalid=5110, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:09:01,244 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1115 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 9789 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:01,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 9789 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:09:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-01-18 11:09:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 5432. [2022-01-18 11:09:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-18 11:09:01,298 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-18 11:09:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:01,298 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-18 11:09:01,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-18 11:09:01,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:01,303 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:01,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:01,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 11:09:01,303 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1404412063, now seen corresponding path program 45 times [2022-01-18 11:09:01,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:01,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103455991] [2022-01-18 11:09:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:01,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:01,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:01,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103455991] [2022-01-18 11:09:01,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103455991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:01,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:01,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:01,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311891002] [2022-01-18 11:09:01,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:01,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:01,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:01,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:01,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:01,840 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:07,083 INFO L93 Difference]: Finished difference Result 6344 states and 16618 transitions. [2022-01-18 11:09:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:09:07,083 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:07,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:07,090 INFO L225 Difference]: With dead ends: 6344 [2022-01-18 11:09:07,090 INFO L226 Difference]: Without dead ends: 6053 [2022-01-18 11:09:07,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1240, Invalid=4162, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:09:07,091 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1060 mSDsluCounter, 8562 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 8921 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:07,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 8921 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:07,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2022-01-18 11:09:07,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 5436. [2022-01-18 11:09:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-18 11:09:07,149 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-18 11:09:07,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:07,149 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-18 11:09:07,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-18 11:09:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:07,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:07,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:07,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 11:09:07,154 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:07,154 INFO L85 PathProgramCache]: Analyzing trace with hash 986230409, now seen corresponding path program 46 times [2022-01-18 11:09:07,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:07,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399355951] [2022-01-18 11:09:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:07,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:07,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:07,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399355951] [2022-01-18 11:09:07,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399355951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:07,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:07,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:07,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654037461] [2022-01-18 11:09:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:07,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:07,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:07,645 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:12,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:12,977 INFO L93 Difference]: Finished difference Result 6201 states and 16252 transitions. [2022-01-18 11:09:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:09:12,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:12,985 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 11:09:12,985 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 11:09:12,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:09:12,986 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 979 mSDsluCounter, 9190 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:12,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 9530 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 11:09:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 11:09:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-18 11:09:13,043 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-18 11:09:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:13,043 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-18 11:09:13,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-18 11:09:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:13,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:13,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:13,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 11:09:13,048 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1815915453, now seen corresponding path program 47 times [2022-01-18 11:09:13,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:13,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091315372] [2022-01-18 11:09:13,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:13,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:13,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:13,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091315372] [2022-01-18 11:09:13,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091315372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:13,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:13,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:13,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785690448] [2022-01-18 11:09:13,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:13,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:13,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:13,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:13,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:13,574 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:20,013 INFO L93 Difference]: Finished difference Result 6172 states and 16170 transitions. [2022-01-18 11:09:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:09:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:20,020 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 11:09:20,020 INFO L226 Difference]: Without dead ends: 5828 [2022-01-18 11:09:20,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=996, Invalid=3294, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:09:20,021 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 950 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 8926 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:20,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 8926 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:20,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-01-18 11:09:20,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5356. [2022-01-18 11:09:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 2.637535014005602) internal successors, (14124), 5355 states have internal predecessors, (14124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 14124 transitions. [2022-01-18 11:09:20,069 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 14124 transitions. Word has length 137 [2022-01-18 11:09:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:20,069 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 14124 transitions. [2022-01-18 11:09:20,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 14124 transitions. [2022-01-18 11:09:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:20,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:20,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 11:09:20,074 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash -332532207, now seen corresponding path program 48 times [2022-01-18 11:09:20,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638996253] [2022-01-18 11:09:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:20,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:20,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:20,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638996253] [2022-01-18 11:09:20,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638996253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:20,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:20,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:20,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657097383] [2022-01-18 11:09:20,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:20,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:20,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:20,636 INFO L87 Difference]: Start difference. First operand 5356 states and 14124 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:26,720 INFO L93 Difference]: Finished difference Result 7132 states and 18616 transitions. [2022-01-18 11:09:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 11:09:26,721 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:26,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:26,729 INFO L225 Difference]: With dead ends: 7132 [2022-01-18 11:09:26,729 INFO L226 Difference]: Without dead ends: 6283 [2022-01-18 11:09:26,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2154 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2362, Invalid=7144, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 11:09:26,730 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1615 mSDsluCounter, 9321 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 9682 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:26,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 9682 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:09:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6283 states. [2022-01-18 11:09:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 5412. [2022-01-18 11:09:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-18 11:09:26,785 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-18 11:09:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:26,785 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-18 11:09:26,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-18 11:09:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:26,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:26,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:26,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 11:09:26,790 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1888595271, now seen corresponding path program 49 times [2022-01-18 11:09:26,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:26,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72044107] [2022-01-18 11:09:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:26,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:27,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:27,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72044107] [2022-01-18 11:09:27,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72044107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:27,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:27,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:27,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367940420] [2022-01-18 11:09:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:27,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:27,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:27,290 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:34,527 INFO L93 Difference]: Finished difference Result 6698 states and 17458 transitions. [2022-01-18 11:09:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:09:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:34,535 INFO L225 Difference]: With dead ends: 6698 [2022-01-18 11:09:34,535 INFO L226 Difference]: Without dead ends: 6252 [2022-01-18 11:09:34,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2091, Invalid=6651, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:09:34,536 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1539 mSDsluCounter, 10065 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 10386 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:34,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 10386 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:09:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-01-18 11:09:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 5416. [2022-01-18 11:09:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-18 11:09:34,587 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-18 11:09:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:34,587 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-18 11:09:34,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-18 11:09:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:34,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:34,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:34,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 11:09:34,592 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:34,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1299734857, now seen corresponding path program 50 times [2022-01-18 11:09:34,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:34,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850671117] [2022-01-18 11:09:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:34,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:35,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:35,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:35,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850671117] [2022-01-18 11:09:35,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850671117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:35,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:35,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:35,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738421766] [2022-01-18 11:09:35,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:35,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:35,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:35,074 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:40,390 INFO L93 Difference]: Finished difference Result 6460 states and 16911 transitions. [2022-01-18 11:09:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:09:40,391 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:40,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:40,398 INFO L225 Difference]: With dead ends: 6460 [2022-01-18 11:09:40,398 INFO L226 Difference]: Without dead ends: 6045 [2022-01-18 11:09:40,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1840, Invalid=6170, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:09:40,399 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1227 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:40,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 10128 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:09:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-01-18 11:09:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5428. [2022-01-18 11:09:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-18 11:09:40,455 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-18 11:09:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:40,455 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-18 11:09:40,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-18 11:09:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:40,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:40,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:40,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 11:09:40,461 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:40,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash 531591037, now seen corresponding path program 51 times [2022-01-18 11:09:40,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:40,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597924180] [2022-01-18 11:09:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:40,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:41,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:41,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597924180] [2022-01-18 11:09:41,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597924180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:41,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:41,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:41,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106460163] [2022-01-18 11:09:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:41,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:41,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:41,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:41,054 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:46,893 INFO L93 Difference]: Finished difference Result 6305 states and 16504 transitions. [2022-01-18 11:09:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:09:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:46,901 INFO L225 Difference]: With dead ends: 6305 [2022-01-18 11:09:46,901 INFO L226 Difference]: Without dead ends: 5983 [2022-01-18 11:09:46,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1506, Invalid=5136, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:09:46,902 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1147 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 9237 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:46,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 9237 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1849 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-01-18 11:09:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5432. [2022-01-18 11:09:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-18 11:09:46,960 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-18 11:09:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:46,960 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-18 11:09:46,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-18 11:09:46,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:46,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:46,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:46,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 11:09:46,965 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash 827193873, now seen corresponding path program 52 times [2022-01-18 11:09:46,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:46,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4631627] [2022-01-18 11:09:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:46,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:47,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:47,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4631627] [2022-01-18 11:09:47,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4631627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:47,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:47,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:47,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847808182] [2022-01-18 11:09:47,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:47,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:47,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:47,507 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:52,001 INFO L93 Difference]: Finished difference Result 6212 states and 16263 transitions. [2022-01-18 11:09:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:09:52,001 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:09:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:52,008 INFO L225 Difference]: With dead ends: 6212 [2022-01-18 11:09:52,008 INFO L226 Difference]: Without dead ends: 5921 [2022-01-18 11:09:52,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1218, Invalid=4184, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:09:52,009 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1050 mSDsluCounter, 9326 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 9679 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:52,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 9679 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:09:52,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-01-18 11:09:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5436. [2022-01-18 11:09:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-18 11:09:52,066 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-18 11:09:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:52,067 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-18 11:09:52,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-18 11:09:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:09:52,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:52,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 11:09:52,072 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 409012219, now seen corresponding path program 53 times [2022-01-18 11:09:52,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768563679] [2022-01-18 11:09:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:52,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:52,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:52,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768563679] [2022-01-18 11:09:52,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768563679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:52,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:52,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:09:52,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574006886] [2022-01-18 11:09:52,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:52,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:09:52,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:09:52,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:09:52,676 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:02,111 INFO L93 Difference]: Finished difference Result 6057 states and 15864 transitions. [2022-01-18 11:10:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:10:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:02,118 INFO L225 Difference]: With dead ends: 6057 [2022-01-18 11:10:02,118 INFO L226 Difference]: Without dead ends: 5800 [2022-01-18 11:10:02,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=956, Invalid=2826, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:10:02,119 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 953 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:02,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 9579 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:10:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-01-18 11:10:02,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5440. [2022-01-18 11:10:02,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-18 11:10:02,173 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-18 11:10:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:02,174 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-18 11:10:02,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-18 11:10:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:02,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:02,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:02,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 11:10:02,178 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:02,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1901833653, now seen corresponding path program 54 times [2022-01-18 11:10:02,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:02,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870346322] [2022-01-18 11:10:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:02,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:02,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:02,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870346322] [2022-01-18 11:10:02,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870346322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:02,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:02,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:02,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785780291] [2022-01-18 11:10:02,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:02,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:02,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:02,706 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:07,153 INFO L93 Difference]: Finished difference Result 6060 states and 15866 transitions. [2022-01-18 11:10:07,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:07,153 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:07,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:07,160 INFO L225 Difference]: With dead ends: 6060 [2022-01-18 11:10:07,160 INFO L226 Difference]: Without dead ends: 5720 [2022-01-18 11:10:07,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=984, Invalid=3306, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:10:07,161 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 1065 mSDsluCounter, 7998 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 8384 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:07,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 8384 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:10:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-01-18 11:10:07,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5360. [2022-01-18 11:10:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 2.636872550849039) internal successors, (14131), 5359 states have internal predecessors, (14131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14131 transitions. [2022-01-18 11:10:07,213 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14131 transitions. Word has length 137 [2022-01-18 11:10:07,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:07,213 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 14131 transitions. [2022-01-18 11:10:07,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14131 transitions. [2022-01-18 11:10:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:07,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:07,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:07,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 11:10:07,218 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:07,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:07,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574831, now seen corresponding path program 55 times [2022-01-18 11:10:07,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:07,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128932187] [2022-01-18 11:10:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:07,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:07,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:07,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128932187] [2022-01-18 11:10:07,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128932187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:07,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:07,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:07,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773869315] [2022-01-18 11:10:07,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:07,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:07,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:07,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:07,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:07,770 INFO L87 Difference]: Start difference. First operand 5360 states and 14131 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:14,315 INFO L93 Difference]: Finished difference Result 6376 states and 16694 transitions. [2022-01-18 11:10:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:10:14,315 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:14,322 INFO L225 Difference]: With dead ends: 6376 [2022-01-18 11:10:14,322 INFO L226 Difference]: Without dead ends: 5450 [2022-01-18 11:10:14,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2648, Invalid=7654, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 11:10:14,323 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1507 mSDsluCounter, 9246 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 9577 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:14,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 9577 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:10:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-01-18 11:10:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5314. [2022-01-18 11:10:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5313 states have (on average 2.6405044231131187) internal successors, (14029), 5313 states have internal predecessors, (14029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 14029 transitions. [2022-01-18 11:10:14,380 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 14029 transitions. Word has length 137 [2022-01-18 11:10:14,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:14,380 INFO L470 AbstractCegarLoop]: Abstraction has 5314 states and 14029 transitions. [2022-01-18 11:10:14,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 14029 transitions. [2022-01-18 11:10:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:14,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:14,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:14,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 11:10:14,386 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1776317311, now seen corresponding path program 56 times [2022-01-18 11:10:14,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:14,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148620859] [2022-01-18 11:10:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:14,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:14,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:14,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:14,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148620859] [2022-01-18 11:10:14,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148620859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:14,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:14,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:14,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452850706] [2022-01-18 11:10:14,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:14,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:14,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:14,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:14,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:14,905 INFO L87 Difference]: Start difference. First operand 5314 states and 14029 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:22,671 INFO L93 Difference]: Finished difference Result 7714 states and 20217 transitions. [2022-01-18 11:10:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 11:10:22,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:22,679 INFO L225 Difference]: With dead ends: 7714 [2022-01-18 11:10:22,679 INFO L226 Difference]: Without dead ends: 6865 [2022-01-18 11:10:22,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2018 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2445, Invalid=7061, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 11:10:22,680 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 1576 mSDsluCounter, 10139 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 10460 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:22,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1576 Valid, 10460 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:10:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-01-18 11:10:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 5486. [2022-01-18 11:10:22,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 2.634457611668186) internal successors, (14450), 5485 states have internal predecessors, (14450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 14450 transitions. [2022-01-18 11:10:22,736 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 14450 transitions. Word has length 137 [2022-01-18 11:10:22,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:22,736 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 14450 transitions. [2022-01-18 11:10:22,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 14450 transitions. [2022-01-18 11:10:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:22,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:22,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:22,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 11:10:22,742 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:22,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:22,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1890609603, now seen corresponding path program 57 times [2022-01-18 11:10:22,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:22,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528864591] [2022-01-18 11:10:22,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:22,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:23,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:23,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528864591] [2022-01-18 11:10:23,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528864591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:23,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:23,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:23,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260299549] [2022-01-18 11:10:23,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:23,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:23,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:23,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:23,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:23,270 INFO L87 Difference]: Start difference. First operand 5486 states and 14450 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:30,335 INFO L93 Difference]: Finished difference Result 7448 states and 19509 transitions. [2022-01-18 11:10:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:10:30,335 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:30,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:30,344 INFO L225 Difference]: With dead ends: 7448 [2022-01-18 11:10:30,344 INFO L226 Difference]: Without dead ends: 7002 [2022-01-18 11:10:30,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2171, Invalid=6571, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:10:30,346 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1493 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:30,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 9131 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2022-01-18 11:10:30,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 5490. [2022-01-18 11:10:30,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 5489 states have (on average 2.6338130807068683) internal successors, (14457), 5489 states have internal predecessors, (14457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 14457 transitions. [2022-01-18 11:10:30,410 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 14457 transitions. Word has length 137 [2022-01-18 11:10:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:30,410 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 14457 transitions. [2022-01-18 11:10:30,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 14457 transitions. [2022-01-18 11:10:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:30,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:30,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 11:10:30,416 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1301749189, now seen corresponding path program 58 times [2022-01-18 11:10:30,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:30,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426374737] [2022-01-18 11:10:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:30,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:30,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:30,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426374737] [2022-01-18 11:10:30,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426374737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:30,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:30,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:30,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805453194] [2022-01-18 11:10:30,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:30,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:30,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:30,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:30,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:30,946 INFO L87 Difference]: Start difference. First operand 5490 states and 14457 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:37,515 INFO L93 Difference]: Finished difference Result 7222 states and 18991 transitions. [2022-01-18 11:10:37,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:10:37,515 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:37,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:37,523 INFO L225 Difference]: With dead ends: 7222 [2022-01-18 11:10:37,524 INFO L226 Difference]: Without dead ends: 6807 [2022-01-18 11:10:37,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1909, Invalid=6101, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:10:37,525 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1250 mSDsluCounter, 9202 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 9548 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:37,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 9548 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2022-01-18 11:10:37,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5502. [2022-01-18 11:10:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 2.631885111797855) internal successors, (14478), 5501 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 14478 transitions. [2022-01-18 11:10:37,584 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 14478 transitions. Word has length 137 [2022-01-18 11:10:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:37,584 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 14478 transitions. [2022-01-18 11:10:37,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 14478 transitions. [2022-01-18 11:10:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:37,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:37,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 11:10:37,589 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 529576705, now seen corresponding path program 59 times [2022-01-18 11:10:37,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:37,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538984284] [2022-01-18 11:10:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:37,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:38,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:38,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538984284] [2022-01-18 11:10:38,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538984284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:38,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:38,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:38,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687792760] [2022-01-18 11:10:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:38,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:38,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:38,108 INFO L87 Difference]: Start difference. First operand 5502 states and 14478 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:44,148 INFO L93 Difference]: Finished difference Result 7071 states and 18595 transitions. [2022-01-18 11:10:44,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:10:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:44,158 INFO L225 Difference]: With dead ends: 7071 [2022-01-18 11:10:44,158 INFO L226 Difference]: Without dead ends: 6749 [2022-01-18 11:10:44,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1556, Invalid=5086, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:10:44,159 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1110 mSDsluCounter, 9222 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 9568 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:44,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 9568 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2022-01-18 11:10:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 5506. [2022-01-18 11:10:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 2.631244323342416) internal successors, (14485), 5505 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 14485 transitions. [2022-01-18 11:10:44,251 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 14485 transitions. Word has length 137 [2022-01-18 11:10:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:44,251 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 14485 transitions. [2022-01-18 11:10:44,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 14485 transitions. [2022-01-18 11:10:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:44,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:44,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:44,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 11:10:44,290 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 825179541, now seen corresponding path program 60 times [2022-01-18 11:10:44,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:44,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964772649] [2022-01-18 11:10:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:44,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:44,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:44,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964772649] [2022-01-18 11:10:44,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964772649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:44,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:44,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:44,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624142739] [2022-01-18 11:10:44,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:44,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:44,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:44,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:44,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:44,853 INFO L87 Difference]: Start difference. First operand 5506 states and 14485 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:50,032 INFO L93 Difference]: Finished difference Result 6982 states and 18365 transitions. [2022-01-18 11:10:50,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:10:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:50,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:50,042 INFO L225 Difference]: With dead ends: 6982 [2022-01-18 11:10:50,042 INFO L226 Difference]: Without dead ends: 6691 [2022-01-18 11:10:50,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1255, Invalid=4147, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:10:50,043 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1066 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:50,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 9444 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:50,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-01-18 11:10:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5510. [2022-01-18 11:10:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 2.6306044654202214) internal successors, (14492), 5509 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 14492 transitions. [2022-01-18 11:10:50,111 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 14492 transitions. Word has length 137 [2022-01-18 11:10:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:50,111 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 14492 transitions. [2022-01-18 11:10:50,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 14492 transitions. [2022-01-18 11:10:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:50,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:50,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:50,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 11:10:50,116 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 406997887, now seen corresponding path program 61 times [2022-01-18 11:10:50,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:50,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726495130] [2022-01-18 11:10:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:50,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:50,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:50,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726495130] [2022-01-18 11:10:50,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726495130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:50,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:50,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:50,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798803910] [2022-01-18 11:10:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:50,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:50,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:50,657 INFO L87 Difference]: Start difference. First operand 5510 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:54,913 INFO L93 Difference]: Finished difference Result 6839 states and 17999 transitions. [2022-01-18 11:10:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:10:54,913 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:54,921 INFO L225 Difference]: With dead ends: 6839 [2022-01-18 11:10:54,921 INFO L226 Difference]: Without dead ends: 6582 [2022-01-18 11:10:54,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:10:54,922 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1032 mSDsluCounter, 8708 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 9072 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:54,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 9072 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:10:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2022-01-18 11:10:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 5514. [2022-01-18 11:10:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 2.6299655360058045) internal successors, (14499), 5513 states have internal predecessors, (14499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:54,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 14499 transitions. [2022-01-18 11:10:54,983 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 14499 transitions. Word has length 137 [2022-01-18 11:10:54,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:54,983 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 14499 transitions. [2022-01-18 11:10:54,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:54,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 14499 transitions. [2022-01-18 11:10:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:54,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:54,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:54,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 11:10:54,990 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:54,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:54,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1899819321, now seen corresponding path program 62 times [2022-01-18 11:10:54,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:54,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256170194] [2022-01-18 11:10:54,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:54,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:55,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:55,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256170194] [2022-01-18 11:10:55,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256170194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:55,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:55,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:10:55,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886269342] [2022-01-18 11:10:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:10:55,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:55,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:10:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:10:55,615 INFO L87 Difference]: Start difference. First operand 5514 states and 14499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:59,901 INFO L93 Difference]: Finished difference Result 6810 states and 17917 transitions. [2022-01-18 11:10:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:59,901 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:10:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:59,909 INFO L225 Difference]: With dead ends: 6810 [2022-01-18 11:10:59,909 INFO L226 Difference]: Without dead ends: 6470 [2022-01-18 11:10:59,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1002, Invalid=3288, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:10:59,909 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1006 mSDsluCounter, 9327 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 9675 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:59,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 9675 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-01-18 11:10:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5434. [2022-01-18 11:10:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6333517393705135) internal successors, (14307), 5433 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14307 transitions. [2022-01-18 11:10:59,966 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14307 transitions. Word has length 137 [2022-01-18 11:10:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:59,966 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14307 transitions. [2022-01-18 11:10:59,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:59,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14307 transitions. [2022-01-18 11:10:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:10:59,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:59,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:59,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 11:10:59,971 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1050393517, now seen corresponding path program 63 times [2022-01-18 11:10:59,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:59,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354161386] [2022-01-18 11:10:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:59,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:00,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:00,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354161386] [2022-01-18 11:11:00,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354161386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:00,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:00,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:00,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342715029] [2022-01-18 11:11:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:00,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:00,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:00,551 INFO L87 Difference]: Start difference. First operand 5434 states and 14307 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:06,434 INFO L93 Difference]: Finished difference Result 7195 states and 18944 transitions. [2022-01-18 11:11:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:11:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:06,443 INFO L225 Difference]: With dead ends: 7195 [2022-01-18 11:11:06,444 INFO L226 Difference]: Without dead ends: 6873 [2022-01-18 11:11:06,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1559, Invalid=4921, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 11:11:06,445 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1146 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 9216 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:06,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 9216 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:06,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-01-18 11:11:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5458. [2022-01-18 11:11:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6331317573758475) internal successors, (14369), 5457 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:06,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14369 transitions. [2022-01-18 11:11:06,504 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14369 transitions. Word has length 137 [2022-01-18 11:11:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:06,504 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14369 transitions. [2022-01-18 11:11:06,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14369 transitions. [2022-01-18 11:11:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:06,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:06,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:06,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 11:11:06,509 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:06,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:06,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1345996353, now seen corresponding path program 64 times [2022-01-18 11:11:06,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:06,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962389380] [2022-01-18 11:11:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:06,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:07,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:07,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962389380] [2022-01-18 11:11:07,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962389380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:07,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:07,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:07,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121044055] [2022-01-18 11:11:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:07,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:07,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:07,055 INFO L87 Difference]: Start difference. First operand 5458 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:12,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:12,339 INFO L93 Difference]: Finished difference Result 7138 states and 18802 transitions. [2022-01-18 11:11:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:11:12,339 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:12,347 INFO L225 Difference]: With dead ends: 7138 [2022-01-18 11:11:12,347 INFO L226 Difference]: Without dead ends: 6847 [2022-01-18 11:11:12,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1284, Invalid=4118, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:11:12,348 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1135 mSDsluCounter, 8706 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:12,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 9055 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-01-18 11:11:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 5462. [2022-01-18 11:11:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:12,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-18 11:11:12,416 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-18 11:11:12,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:12,416 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-18 11:11:12,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-18 11:11:12,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:12,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:12,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:12,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 11:11:12,422 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 927814699, now seen corresponding path program 65 times [2022-01-18 11:11:12,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:12,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228055582] [2022-01-18 11:11:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:12,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:12,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:12,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228055582] [2022-01-18 11:11:12,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228055582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:12,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:12,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:12,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482163363] [2022-01-18 11:11:12,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:12,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:12,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:12,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:12,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:12,917 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:17,422 INFO L93 Difference]: Finished difference Result 7035 states and 18538 transitions. [2022-01-18 11:11:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:11:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:17,432 INFO L225 Difference]: With dead ends: 7035 [2022-01-18 11:11:17,432 INFO L226 Difference]: Without dead ends: 6778 [2022-01-18 11:11:17,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:11:17,433 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 998 mSDsluCounter, 8603 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 8961 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:17,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [998 Valid, 8961 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-01-18 11:11:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5466. [2022-01-18 11:11:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-18 11:11:17,493 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-18 11:11:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:17,494 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-18 11:11:17,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-18 11:11:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:17,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:17,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:17,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 11:11:17,499 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1874331163, now seen corresponding path program 66 times [2022-01-18 11:11:17,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:17,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395050077] [2022-01-18 11:11:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:17,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:18,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:18,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395050077] [2022-01-18 11:11:18,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395050077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:18,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:18,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:18,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276458062] [2022-01-18 11:11:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:18,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:18,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:18,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:18,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:18,029 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:22,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:22,486 INFO L93 Difference]: Finished difference Result 7006 states and 18456 transitions. [2022-01-18 11:11:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:11:22,486 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:22,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:22,493 INFO L225 Difference]: With dead ends: 7006 [2022-01-18 11:11:22,493 INFO L226 Difference]: Without dead ends: 6734 [2022-01-18 11:11:22,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1019, Invalid=3271, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:11:22,494 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 1119 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 8865 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:22,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 8865 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2022-01-18 11:11:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 5454. [2022-01-18 11:11:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6330460297084173) internal successors, (14358), 5453 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14358 transitions. [2022-01-18 11:11:22,550 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14358 transitions. Word has length 137 [2022-01-18 11:11:22,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:22,550 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14358 transitions. [2022-01-18 11:11:22,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14358 transitions. [2022-01-18 11:11:22,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:22,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:22,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:22,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 11:11:22,555 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:22,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:22,555 INFO L85 PathProgramCache]: Analyzing trace with hash 640481925, now seen corresponding path program 67 times [2022-01-18 11:11:22,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694324578] [2022-01-18 11:11:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:22,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:23,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:23,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694324578] [2022-01-18 11:11:23,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694324578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:23,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:23,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:23,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049741022] [2022-01-18 11:11:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:23,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:23,068 INFO L87 Difference]: Start difference. First operand 5454 states and 14358 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:29,525 INFO L93 Difference]: Finished difference Result 6951 states and 18315 transitions. [2022-01-18 11:11:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:11:29,525 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:29,534 INFO L225 Difference]: With dead ends: 6951 [2022-01-18 11:11:29,534 INFO L226 Difference]: Without dead ends: 6666 [2022-01-18 11:11:29,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1293, Invalid=3537, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:11:29,535 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 984 mSDsluCounter, 8826 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:29,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9170 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-01-18 11:11:29,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 5462. [2022-01-18 11:11:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-18 11:11:29,601 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-18 11:11:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:29,601 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-18 11:11:29,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-18 11:11:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:29,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:29,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:29,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 11:11:29,606 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1884444019, now seen corresponding path program 68 times [2022-01-18 11:11:29,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:29,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148590974] [2022-01-18 11:11:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:29,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:30,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:30,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148590974] [2022-01-18 11:11:30,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148590974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:30,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:30,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:30,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179594251] [2022-01-18 11:11:30,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:30,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:30,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:30,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:30,121 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:35,682 INFO L93 Difference]: Finished difference Result 6959 states and 18333 transitions. [2022-01-18 11:11:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:11:35,682 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:35,689 INFO L225 Difference]: With dead ends: 6959 [2022-01-18 11:11:35,689 INFO L226 Difference]: Without dead ends: 6702 [2022-01-18 11:11:35,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1107, Invalid=3183, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:11:35,690 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 978 mSDsluCounter, 8078 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:35,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 8451 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-18 11:11:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-18 11:11:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-18 11:11:35,743 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-18 11:11:35,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:35,743 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-18 11:11:35,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-18 11:11:35,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:35,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:35,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:35,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 11:11:35,748 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:35,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash -917701843, now seen corresponding path program 69 times [2022-01-18 11:11:35,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:35,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163037029] [2022-01-18 11:11:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:35,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:36,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163037029] [2022-01-18 11:11:36,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163037029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:36,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:36,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:36,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409708224] [2022-01-18 11:11:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:36,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:36,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:36,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:36,272 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:40,470 INFO L93 Difference]: Finished difference Result 6930 states and 18251 transitions. [2022-01-18 11:11:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:11:40,470 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:40,479 INFO L225 Difference]: With dead ends: 6930 [2022-01-18 11:11:40,479 INFO L226 Difference]: Without dead ends: 6662 [2022-01-18 11:11:40,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=987, Invalid=3173, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:11:40,480 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 966 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 9227 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:40,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 9227 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-01-18 11:11:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 5458. [2022-01-18 11:11:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.632398753894081) internal successors, (14365), 5457 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14365 transitions. [2022-01-18 11:11:40,542 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14365 transitions. Word has length 137 [2022-01-18 11:11:40,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:40,542 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14365 transitions. [2022-01-18 11:11:40,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14365 transitions. [2022-01-18 11:11:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:40,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:40,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:40,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 11:11:40,547 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:40,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1910020413, now seen corresponding path program 70 times [2022-01-18 11:11:40,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:40,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014685186] [2022-01-18 11:11:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:40,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:41,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014685186] [2022-01-18 11:11:41,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014685186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:41,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:41,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:41,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696624139] [2022-01-18 11:11:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:41,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:41,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:41,067 INFO L87 Difference]: Start difference. First operand 5458 states and 14365 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:46,084 INFO L93 Difference]: Finished difference Result 7062 states and 18593 transitions. [2022-01-18 11:11:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:11:46,084 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:46,092 INFO L225 Difference]: With dead ends: 7062 [2022-01-18 11:11:46,092 INFO L226 Difference]: Without dead ends: 6771 [2022-01-18 11:11:46,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1254, Invalid=4002, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:11:46,092 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1114 mSDsluCounter, 8469 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 8825 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:46,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 8825 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-18 11:11:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5462. [2022-01-18 11:11:46,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.63175242629555) internal successors, (14372), 5461 states have internal predecessors, (14372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14372 transitions. [2022-01-18 11:11:46,147 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14372 transitions. Word has length 137 [2022-01-18 11:11:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:46,147 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14372 transitions. [2022-01-18 11:11:46,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14372 transitions. [2022-01-18 11:11:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:46,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:46,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:46,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 11:11:46,152 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1966765229, now seen corresponding path program 71 times [2022-01-18 11:11:46,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:46,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079184465] [2022-01-18 11:11:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:46,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:46,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:46,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079184465] [2022-01-18 11:11:46,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079184465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:46,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:46,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:46,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820197028] [2022-01-18 11:11:46,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:46,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:46,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:46,713 INFO L87 Difference]: Start difference. First operand 5462 states and 14372 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:51,429 INFO L93 Difference]: Finished difference Result 6959 states and 18329 transitions. [2022-01-18 11:11:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:11:51,430 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:51,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:51,438 INFO L225 Difference]: With dead ends: 6959 [2022-01-18 11:11:51,438 INFO L226 Difference]: Without dead ends: 6702 [2022-01-18 11:11:51,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1068, Invalid=3092, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:11:51,439 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1007 mSDsluCounter, 8021 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 8395 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:51,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 8395 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:11:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-18 11:11:51,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-18 11:11:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.631107044830741) internal successors, (14379), 5465 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14379 transitions. [2022-01-18 11:11:51,497 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14379 transitions. Word has length 137 [2022-01-18 11:11:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:51,498 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14379 transitions. [2022-01-18 11:11:51,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14379 transitions. [2022-01-18 11:11:51,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:51,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:51,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:51,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 11:11:51,503 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:51,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash -835380633, now seen corresponding path program 72 times [2022-01-18 11:11:51,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:51,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542810304] [2022-01-18 11:11:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:51,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:52,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:52,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542810304] [2022-01-18 11:11:52,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542810304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:52,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:52,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:52,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448557605] [2022-01-18 11:11:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:52,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:52,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:52,025 INFO L87 Difference]: Start difference. First operand 5466 states and 14379 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:56,549 INFO L93 Difference]: Finished difference Result 6930 states and 18247 transitions. [2022-01-18 11:11:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:11:56,550 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:11:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:56,558 INFO L225 Difference]: With dead ends: 6930 [2022-01-18 11:11:56,558 INFO L226 Difference]: Without dead ends: 6654 [2022-01-18 11:11:56,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:11:56,559 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 984 mSDsluCounter, 8870 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9224 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:56,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9224 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2022-01-18 11:11:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 5450. [2022-01-18 11:11:56,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6329601761791155) internal successors, (14347), 5449 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14347 transitions. [2022-01-18 11:11:56,620 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14347 transitions. Word has length 137 [2022-01-18 11:11:56,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:56,620 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14347 transitions. [2022-01-18 11:11:56,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:56,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14347 transitions. [2022-01-18 11:11:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:11:56,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:56,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:56,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 11:11:56,625 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -854423229, now seen corresponding path program 73 times [2022-01-18 11:11:56,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:56,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654118926] [2022-01-18 11:11:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:56,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:57,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:57,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654118926] [2022-01-18 11:11:57,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654118926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:57,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:57,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:11:57,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834077838] [2022-01-18 11:11:57,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:57,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:11:57,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:11:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:11:57,203 INFO L87 Difference]: Start difference. First operand 5450 states and 14347 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:04,941 INFO L93 Difference]: Finished difference Result 7326 states and 19273 transitions. [2022-01-18 11:12:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 11:12:04,942 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:04,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:04,951 INFO L225 Difference]: With dead ends: 7326 [2022-01-18 11:12:04,951 INFO L226 Difference]: Without dead ends: 6911 [2022-01-18 11:12:04,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1908, Invalid=5924, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 11:12:04,952 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1257 mSDsluCounter, 8689 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 9035 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:04,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 9035 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-01-18 11:12:04,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 5462. [2022-01-18 11:12:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.631019959714338) internal successors, (14368), 5461 states have internal predecessors, (14368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14368 transitions. [2022-01-18 11:12:05,010 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14368 transitions. Word has length 137 [2022-01-18 11:12:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:05,010 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14368 transitions. [2022-01-18 11:12:05,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14368 transitions. [2022-01-18 11:12:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:05,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:05,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:05,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 11:12:05,015 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1540201579, now seen corresponding path program 74 times [2022-01-18 11:12:05,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876055469] [2022-01-18 11:12:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:05,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:05,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876055469] [2022-01-18 11:12:05,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876055469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:05,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:05,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:05,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585273952] [2022-01-18 11:12:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:05,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:05,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:05,532 INFO L87 Difference]: Start difference. First operand 5462 states and 14368 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:12,363 INFO L93 Difference]: Finished difference Result 7175 states and 18877 transitions. [2022-01-18 11:12:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:12:12,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:12,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:12,370 INFO L225 Difference]: With dead ends: 7175 [2022-01-18 11:12:12,370 INFO L226 Difference]: Without dead ends: 6853 [2022-01-18 11:12:12,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1588, Invalid=5054, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:12:12,371 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1154 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 8960 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:12,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 8960 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2022-01-18 11:12:12,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 5466. [2022-01-18 11:12:12,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6303751143641354) internal successors, (14375), 5465 states have internal predecessors, (14375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14375 transitions. [2022-01-18 11:12:12,424 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14375 transitions. Word has length 137 [2022-01-18 11:12:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:12,424 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14375 transitions. [2022-01-18 11:12:12,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14375 transitions. [2022-01-18 11:12:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:12,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:12,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:12,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 11:12:12,429 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:12,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1835804415, now seen corresponding path program 75 times [2022-01-18 11:12:12,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:12,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593029055] [2022-01-18 11:12:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:12,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:12,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:12,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593029055] [2022-01-18 11:12:12,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593029055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:12,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:12,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:12,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813622301] [2022-01-18 11:12:12,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:12,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:12,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:12,968 INFO L87 Difference]: Start difference. First operand 5466 states and 14375 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:18,060 INFO L93 Difference]: Finished difference Result 7086 states and 18647 transitions. [2022-01-18 11:12:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:12:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:18,069 INFO L225 Difference]: With dead ends: 7086 [2022-01-18 11:12:18,069 INFO L226 Difference]: Without dead ends: 6795 [2022-01-18 11:12:18,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1277, Invalid=4125, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:12:18,070 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1034 mSDsluCounter, 9417 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 9748 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:18,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 9748 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6795 states. [2022-01-18 11:12:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6795 to 5470. [2022-01-18 11:12:18,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 2.6297312122874383) internal successors, (14382), 5469 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 14382 transitions. [2022-01-18 11:12:18,126 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 14382 transitions. Word has length 137 [2022-01-18 11:12:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:18,126 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 14382 transitions. [2022-01-18 11:12:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 14382 transitions. [2022-01-18 11:12:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:18,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:18,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:18,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 11:12:18,131 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:18,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1417622761, now seen corresponding path program 76 times [2022-01-18 11:12:18,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:18,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326793806] [2022-01-18 11:12:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:18,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:18,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326793806] [2022-01-18 11:12:18,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326793806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:18,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:18,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:18,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047390431] [2022-01-18 11:12:18,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:18,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:18,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:18,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:18,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:18,708 INFO L87 Difference]: Start difference. First operand 5470 states and 14382 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:23,311 INFO L93 Difference]: Finished difference Result 6967 states and 18339 transitions. [2022-01-18 11:12:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 11:12:23,311 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:23,318 INFO L225 Difference]: With dead ends: 6967 [2022-01-18 11:12:23,318 INFO L226 Difference]: Without dead ends: 6710 [2022-01-18 11:12:23,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=994, Invalid=2912, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:12:23,319 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1042 mSDsluCounter, 8960 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 9307 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:23,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 9307 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6710 states. [2022-01-18 11:12:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6710 to 5474. [2022-01-18 11:12:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.6290882514160425) internal successors, (14389), 5473 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14389 transitions. [2022-01-18 11:12:23,370 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14389 transitions. Word has length 137 [2022-01-18 11:12:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:23,370 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 14389 transitions. [2022-01-18 11:12:23,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14389 transitions. [2022-01-18 11:12:23,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:23,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:23,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:23,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 11:12:23,375 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:23,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1384523101, now seen corresponding path program 77 times [2022-01-18 11:12:23,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:23,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247239050] [2022-01-18 11:12:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:23,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:23,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:23,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247239050] [2022-01-18 11:12:23,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247239050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:23,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:23,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:23,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993209993] [2022-01-18 11:12:23,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:23,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:23,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:23,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:23,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:23,908 INFO L87 Difference]: Start difference. First operand 5474 states and 14389 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:28,763 INFO L93 Difference]: Finished difference Result 6938 states and 18257 transitions. [2022-01-18 11:12:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:12:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:28,772 INFO L225 Difference]: With dead ends: 6938 [2022-01-18 11:12:28,772 INFO L226 Difference]: Without dead ends: 6642 [2022-01-18 11:12:28,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1016, Invalid=3274, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:12:28,773 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1047 mSDsluCounter, 7828 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 8205 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:28,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 8205 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-01-18 11:12:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5438. [2022-01-18 11:12:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-01-18 11:12:28,829 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-01-18 11:12:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:28,829 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-01-18 11:12:28,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-01-18 11:12:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:28,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:28,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:28,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 11:12:28,834 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash 2088442029, now seen corresponding path program 78 times [2022-01-18 11:12:28,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:28,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370332623] [2022-01-18 11:12:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:28,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:29,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:29,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370332623] [2022-01-18 11:12:29,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370332623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:29,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:29,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:29,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667254635] [2022-01-18 11:12:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:29,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:29,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:29,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:29,361 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:36,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:36,446 INFO L93 Difference]: Finished difference Result 7400 states and 19373 transitions. [2022-01-18 11:12:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 11:12:36,447 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:36,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:36,454 INFO L225 Difference]: With dead ends: 7400 [2022-01-18 11:12:36,454 INFO L226 Difference]: Without dead ends: 6954 [2022-01-18 11:12:36,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=2191, Invalid=6551, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 11:12:36,455 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1508 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 8978 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:36,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 8978 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2022-01-18 11:12:36,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 5442. [2022-01-18 11:12:36,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-01-18 11:12:36,510 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-01-18 11:12:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:36,511 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-01-18 11:12:36,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-01-18 11:12:36,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:36,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:36,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:36,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 11:12:36,516 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1617664853, now seen corresponding path program 79 times [2022-01-18 11:12:36,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:36,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380269044] [2022-01-18 11:12:36,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:36,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:37,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:37,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380269044] [2022-01-18 11:12:37,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380269044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:37,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:37,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:37,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501852852] [2022-01-18 11:12:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:37,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:37,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:37,073 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:43,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:43,801 INFO L93 Difference]: Finished difference Result 7186 states and 18884 transitions. [2022-01-18 11:12:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:12:43,801 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:43,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:43,810 INFO L225 Difference]: With dead ends: 7186 [2022-01-18 11:12:43,810 INFO L226 Difference]: Without dead ends: 6771 [2022-01-18 11:12:43,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1927, Invalid=6083, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 11:12:43,811 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1228 mSDsluCounter, 9611 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:43,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 9930 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:43,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-18 11:12:43,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5454. [2022-01-18 11:12:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-01-18 11:12:43,869 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-01-18 11:12:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:43,869 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-01-18 11:12:43,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-01-18 11:12:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:43,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:43,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:43,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 11:12:43,874 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash 213661041, now seen corresponding path program 80 times [2022-01-18 11:12:43,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:43,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950821808] [2022-01-18 11:12:43,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:43,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:44,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:44,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950821808] [2022-01-18 11:12:44,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950821808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:44,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:44,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:44,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621958303] [2022-01-18 11:12:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:44,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:44,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:44,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:44,384 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:51,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:51,094 INFO L93 Difference]: Finished difference Result 7039 states and 18499 transitions. [2022-01-18 11:12:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:12:51,094 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:51,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:51,102 INFO L225 Difference]: With dead ends: 7039 [2022-01-18 11:12:51,102 INFO L226 Difference]: Without dead ends: 6717 [2022-01-18 11:12:51,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1573, Invalid=5069, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:12:51,103 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1195 mSDsluCounter, 8482 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:51,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 8838 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-01-18 11:12:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5458. [2022-01-18 11:12:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-01-18 11:12:51,158 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-01-18 11:12:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:51,158 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-01-18 11:12:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-01-18 11:12:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:51,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:51,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:51,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 11:12:51,163 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:51,163 INFO L85 PathProgramCache]: Analyzing trace with hash 509263877, now seen corresponding path program 81 times [2022-01-18 11:12:51,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:51,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815424748] [2022-01-18 11:12:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:51,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:51,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:51,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815424748] [2022-01-18 11:12:51,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815424748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:51,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:51,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:51,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107373199] [2022-01-18 11:12:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:51,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:51,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:51,679 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:57,404 INFO L93 Difference]: Finished difference Result 6954 states and 18280 transitions. [2022-01-18 11:12:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:12:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:12:57,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:57,413 INFO L225 Difference]: With dead ends: 6954 [2022-01-18 11:12:57,413 INFO L226 Difference]: Without dead ends: 6663 [2022-01-18 11:12:57,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1267, Invalid=4135, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:12:57,414 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1062 mSDsluCounter, 8099 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 8466 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:57,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 8466 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:12:57,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-01-18 11:12:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 5462. [2022-01-18 11:12:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-01-18 11:12:57,472 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-01-18 11:12:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:57,472 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-01-18 11:12:57,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-01-18 11:12:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:12:57,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:57,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:57,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 11:12:57,477 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:57,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 91082223, now seen corresponding path program 82 times [2022-01-18 11:12:57,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:57,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297278678] [2022-01-18 11:12:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:57,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:58,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:58,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297278678] [2022-01-18 11:12:58,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297278678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:58,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:58,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:12:58,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337526839] [2022-01-18 11:12:58,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:58,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:12:58,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:12:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:12:58,042 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:02,081 INFO L93 Difference]: Finished difference Result 6823 states and 17947 transitions. [2022-01-18 11:13:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 11:13:02,081 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:02,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:02,088 INFO L225 Difference]: With dead ends: 6823 [2022-01-18 11:13:02,088 INFO L226 Difference]: Without dead ends: 6566 [2022-01-18 11:13:02,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=960, Invalid=2822, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:13:02,089 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1057 mSDsluCounter, 8456 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8817 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:02,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8817 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2022-01-18 11:13:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5466. [2022-01-18 11:13:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-01-18 11:13:02,140 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-01-18 11:13:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:02,140 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-01-18 11:13:02,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-01-18 11:13:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:02,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:02,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:02,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 11:13:02,147 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1583903657, now seen corresponding path program 83 times [2022-01-18 11:13:02,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:02,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519976237] [2022-01-18 11:13:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:02,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:02,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519976237] [2022-01-18 11:13:02,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519976237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:02,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:02,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:02,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474768386] [2022-01-18 11:13:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:02,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:02,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:02,656 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:06,651 INFO L93 Difference]: Finished difference Result 6762 states and 17781 transitions. [2022-01-18 11:13:06,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:13:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:06,660 INFO L225 Difference]: With dead ends: 6762 [2022-01-18 11:13:06,660 INFO L226 Difference]: Without dead ends: 6418 [2022-01-18 11:13:06,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:13:06,661 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1020 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 9100 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:06,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 9100 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:06,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-01-18 11:13:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5382. [2022-01-18 11:13:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.632224493588552) internal successors, (14164), 5381 states have internal predecessors, (14164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14164 transitions. [2022-01-18 11:13:06,723 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14164 transitions. Word has length 137 [2022-01-18 11:13:06,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:06,723 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14164 transitions. [2022-01-18 11:13:06,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14164 transitions. [2022-01-18 11:13:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:06,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:06,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:06,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 11:13:06,728 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1678521553, now seen corresponding path program 84 times [2022-01-18 11:13:06,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:06,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395815925] [2022-01-18 11:13:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:06,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:07,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:07,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395815925] [2022-01-18 11:13:07,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395815925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:07,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:07,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:07,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426768560] [2022-01-18 11:13:07,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:07,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:07,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:07,328 INFO L87 Difference]: Start difference. First operand 5382 states and 14164 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:13,949 INFO L93 Difference]: Finished difference Result 6479 states and 17049 transitions. [2022-01-18 11:13:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 11:13:13,950 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:13,956 INFO L225 Difference]: With dead ends: 6479 [2022-01-18 11:13:13,956 INFO L226 Difference]: Without dead ends: 6166 [2022-01-18 11:13:13,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1632, Invalid=4374, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 11:13:13,957 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 1049 mSDsluCounter, 8806 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:13,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 9131 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:13,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2022-01-18 11:13:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 5410. [2022-01-18 11:13:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.63209465705306) internal successors, (14237), 5409 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14237 transitions. [2022-01-18 11:13:14,011 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14237 transitions. Word has length 137 [2022-01-18 11:13:14,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:14,012 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14237 transitions. [2022-01-18 11:13:14,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14237 transitions. [2022-01-18 11:13:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:14,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:14,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:14,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 11:13:14,017 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:14,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:14,017 INFO L85 PathProgramCache]: Analyzing trace with hash 510229385, now seen corresponding path program 85 times [2022-01-18 11:13:14,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:14,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652723097] [2022-01-18 11:13:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:14,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:14,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:14,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652723097] [2022-01-18 11:13:14,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652723097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:14,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:14,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:14,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043733056] [2022-01-18 11:13:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:14,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:14,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:14,575 INFO L87 Difference]: Start difference. First operand 5410 states and 14237 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:20,590 INFO L93 Difference]: Finished difference Result 6551 states and 17235 transitions. [2022-01-18 11:13:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:13:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:20,599 INFO L225 Difference]: With dead ends: 6551 [2022-01-18 11:13:20,599 INFO L226 Difference]: Without dead ends: 6266 [2022-01-18 11:13:20,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1419, Invalid=3983, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:13:20,600 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 997 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 8935 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:20,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 8935 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-01-18 11:13:20,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5414. [2022-01-18 11:13:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-18 11:13:20,654 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-18 11:13:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:20,654 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-18 11:13:20,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-18 11:13:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:20,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:20,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:20,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 11:13:20,659 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1754191479, now seen corresponding path program 86 times [2022-01-18 11:13:20,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:20,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940891045] [2022-01-18 11:13:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:20,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:21,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:21,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940891045] [2022-01-18 11:13:21,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940891045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:21,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:21,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:21,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919460781] [2022-01-18 11:13:21,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:21,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:21,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:21,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:21,171 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:25,867 INFO L93 Difference]: Finished difference Result 6471 states and 17023 transitions. [2022-01-18 11:13:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:13:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:25,874 INFO L225 Difference]: With dead ends: 6471 [2022-01-18 11:13:25,874 INFO L226 Difference]: Without dead ends: 6214 [2022-01-18 11:13:25,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1089, Invalid=3201, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:13:25,875 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 899 mSDsluCounter, 8833 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:25,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 9174 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:25,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-18 11:13:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5418. [2022-01-18 11:13:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-18 11:13:25,928 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-18 11:13:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:25,928 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-18 11:13:25,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-18 11:13:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:25,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:25,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:25,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 11:13:25,934 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:25,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1047954383, now seen corresponding path program 87 times [2022-01-18 11:13:25,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:25,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693111924] [2022-01-18 11:13:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:25,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:26,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:26,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693111924] [2022-01-18 11:13:26,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693111924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:26,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:26,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:26,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951264897] [2022-01-18 11:13:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:26,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:26,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:26,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:26,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:26,544 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:30,672 INFO L93 Difference]: Finished difference Result 6434 states and 16919 transitions. [2022-01-18 11:13:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:13:30,673 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:30,681 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 11:13:30,681 INFO L226 Difference]: Without dead ends: 6162 [2022-01-18 11:13:30,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=969, Invalid=3063, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:13:30,681 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 977 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:30,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 8838 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-18 11:13:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5406. [2022-01-18 11:13:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.632007400555042) internal successors, (14226), 5405 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14226 transitions. [2022-01-18 11:13:30,735 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14226 transitions. Word has length 137 [2022-01-18 11:13:30,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:30,735 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14226 transitions. [2022-01-18 11:13:30,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14226 transitions. [2022-01-18 11:13:30,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:30,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:30,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:30,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 11:13:30,739 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1936839657, now seen corresponding path program 88 times [2022-01-18 11:13:30,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:30,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271516848] [2022-01-18 11:13:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:30,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:31,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:31,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271516848] [2022-01-18 11:13:31,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271516848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:31,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:31,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:31,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322907242] [2022-01-18 11:13:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:31,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:31,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:31,245 INFO L87 Difference]: Start difference. First operand 5406 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:37,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:37,077 INFO L93 Difference]: Finished difference Result 6563 states and 17268 transitions. [2022-01-18 11:13:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:13:37,077 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:37,084 INFO L225 Difference]: With dead ends: 6563 [2022-01-18 11:13:37,084 INFO L226 Difference]: Without dead ends: 6278 [2022-01-18 11:13:37,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1388, Invalid=3868, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:13:37,085 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1033 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 8729 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:37,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 8729 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-18 11:13:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-18 11:13:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-18 11:13:37,136 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-18 11:13:37,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:37,136 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-18 11:13:37,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-18 11:13:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:37,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:37,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:37,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 11:13:37,141 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash -692877563, now seen corresponding path program 89 times [2022-01-18 11:13:37,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:37,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356758679] [2022-01-18 11:13:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:37,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:37,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:37,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356758679] [2022-01-18 11:13:37,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356758679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:37,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:37,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:37,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725988913] [2022-01-18 11:13:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:37,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:37,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:37,648 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:43,012 INFO L93 Difference]: Finished difference Result 6511 states and 17133 transitions. [2022-01-18 11:13:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:13:43,013 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:43,021 INFO L225 Difference]: With dead ends: 6511 [2022-01-18 11:13:43,021 INFO L226 Difference]: Without dead ends: 6254 [2022-01-18 11:13:43,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1094, Invalid=3196, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:13:43,022 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 952 mSDsluCounter, 8217 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:43,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 8576 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-01-18 11:13:43,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 5418. [2022-01-18 11:13:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-18 11:13:43,080 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-18 11:13:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:43,080 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-18 11:13:43,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-18 11:13:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:43,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:43,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:43,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 11:13:43,085 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash 799943871, now seen corresponding path program 90 times [2022-01-18 11:13:43,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:43,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658425809] [2022-01-18 11:13:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:43,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:43,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:43,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658425809] [2022-01-18 11:13:43,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658425809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:43,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:43,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:43,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828205950] [2022-01-18 11:13:43,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:43,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:43,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:43,616 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:47,976 INFO L93 Difference]: Finished difference Result 6482 states and 17051 transitions. [2022-01-18 11:13:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:13:47,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:47,983 INFO L225 Difference]: With dead ends: 6482 [2022-01-18 11:13:47,984 INFO L226 Difference]: Without dead ends: 6214 [2022-01-18 11:13:47,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1006, Invalid=3154, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:13:47,984 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 948 mSDsluCounter, 8624 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 8969 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:47,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 8969 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:47,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-18 11:13:48,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5410. [2022-01-18 11:13:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 11:13:48,033 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 11:13:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:48,033 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 11:13:48,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 11:13:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:48,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:48,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:48,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 11:13:48,038 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:48,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:48,039 INFO L85 PathProgramCache]: Analyzing trace with hash -192374699, now seen corresponding path program 91 times [2022-01-18 11:13:48,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:48,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847173381] [2022-01-18 11:13:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:48,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:48,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:48,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847173381] [2022-01-18 11:13:48,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847173381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:48,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:48,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:48,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984921236] [2022-01-18 11:13:48,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:48,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:48,563 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:53,431 INFO L93 Difference]: Finished difference Result 6566 states and 17261 transitions. [2022-01-18 11:13:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:13:53,431 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:53,439 INFO L225 Difference]: With dead ends: 6566 [2022-01-18 11:13:53,440 INFO L226 Difference]: Without dead ends: 6275 [2022-01-18 11:13:53,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1252, Invalid=3860, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:13:53,440 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1034 mSDsluCounter, 8281 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:53,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 8628 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2022-01-18 11:13:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5414. [2022-01-18 11:13:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 11:13:53,495 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 11:13:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:53,495 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 11:13:53,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 11:13:53,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:53,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:53,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:53,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 11:13:53,500 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash -610556353, now seen corresponding path program 92 times [2022-01-18 11:13:53,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:53,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058499011] [2022-01-18 11:13:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:53,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:54,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:54,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:54,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058499011] [2022-01-18 11:13:54,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058499011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:54,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:54,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:54,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892608695] [2022-01-18 11:13:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:54,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:54,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:54,007 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:58,600 INFO L93 Difference]: Finished difference Result 6475 states and 17030 transitions. [2022-01-18 11:13:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:13:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:13:58,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:58,608 INFO L225 Difference]: With dead ends: 6475 [2022-01-18 11:13:58,609 INFO L226 Difference]: Without dead ends: 6218 [2022-01-18 11:13:58,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1055, Invalid=3105, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 11:13:58,609 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 941 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 9117 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:58,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 9117 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-01-18 11:13:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 5418. [2022-01-18 11:13:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 11:13:58,663 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 11:13:58,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:58,663 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 11:13:58,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 11:13:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:13:58,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:58,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:58,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 11:13:58,669 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash 882265081, now seen corresponding path program 93 times [2022-01-18 11:13:58,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:58,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252664631] [2022-01-18 11:13:58,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:58,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:59,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:59,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:59,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252664631] [2022-01-18 11:13:59,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252664631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:59,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:59,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:13:59,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606608549] [2022-01-18 11:13:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:59,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:13:59,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:13:59,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:13:59,233 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:04,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:04,186 INFO L93 Difference]: Finished difference Result 6434 states and 16915 transitions. [2022-01-18 11:14:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:14:04,186 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:04,194 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 11:14:04,194 INFO L226 Difference]: Without dead ends: 6158 [2022-01-18 11:14:04,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1047, Invalid=3243, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:14:04,195 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1017 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 8124 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:04,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 8124 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2022-01-18 11:14:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5402. [2022-01-18 11:14:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 2.631920014812072) internal successors, (14215), 5401 states have internal predecessors, (14215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:04,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14215 transitions. [2022-01-18 11:14:04,249 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14215 transitions. Word has length 137 [2022-01-18 11:14:04,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:04,249 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 14215 transitions. [2022-01-18 11:14:04,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14215 transitions. [2022-01-18 11:14:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:04,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:04,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:04,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 11:14:04,254 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash 274343417, now seen corresponding path program 94 times [2022-01-18 11:14:04,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:04,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340279807] [2022-01-18 11:14:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:04,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:04,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:04,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340279807] [2022-01-18 11:14:04,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340279807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:04,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:04,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:04,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013243042] [2022-01-18 11:14:04,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:04,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:04,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:04,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:04,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:04,702 INFO L87 Difference]: Start difference. First operand 5402 states and 14215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:12,199 INFO L93 Difference]: Finished difference Result 6683 states and 17568 transitions. [2022-01-18 11:14:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 11:14:12,200 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:12,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:12,208 INFO L225 Difference]: With dead ends: 6683 [2022-01-18 11:14:12,208 INFO L226 Difference]: Without dead ends: 6361 [2022-01-18 11:14:12,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1563, Invalid=4757, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 11:14:12,209 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1171 mSDsluCounter, 7964 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 8316 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6361 states. [2022-01-18 11:14:12,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6361 to 5410. [2022-01-18 11:14:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 11:14:12,263 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 11:14:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:12,263 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 11:14:12,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 11:14:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:12,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:12,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:12,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 11:14:12,268 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:12,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:12,269 INFO L85 PathProgramCache]: Analyzing trace with hash 569946253, now seen corresponding path program 95 times [2022-01-18 11:14:12,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:12,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744239933] [2022-01-18 11:14:12,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:12,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:12,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:12,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744239933] [2022-01-18 11:14:12,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744239933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:12,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:12,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:12,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965042079] [2022-01-18 11:14:12,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:12,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:12,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:12,806 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:18,070 INFO L93 Difference]: Finished difference Result 6646 states and 17481 transitions. [2022-01-18 11:14:18,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:14:18,070 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:18,078 INFO L225 Difference]: With dead ends: 6646 [2022-01-18 11:14:18,078 INFO L226 Difference]: Without dead ends: 6355 [2022-01-18 11:14:18,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1315, Invalid=4087, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:14:18,079 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1110 mSDsluCounter, 8618 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 8956 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:18,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 8956 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-01-18 11:14:18,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 5414. [2022-01-18 11:14:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 11:14:18,135 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 11:14:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:18,135 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 11:14:18,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 11:14:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:18,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:18,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:18,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 11:14:18,140 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:18,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:18,140 INFO L85 PathProgramCache]: Analyzing trace with hash 151764599, now seen corresponding path program 96 times [2022-01-18 11:14:18,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:18,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074281057] [2022-01-18 11:14:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:18,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:18,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:18,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074281057] [2022-01-18 11:14:18,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074281057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:18,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:18,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:18,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070247831] [2022-01-18 11:14:18,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:18,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:18,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:18,624 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:22,839 INFO L93 Difference]: Finished difference Result 6543 states and 17217 transitions. [2022-01-18 11:14:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:14:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:22,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:22,847 INFO L225 Difference]: With dead ends: 6543 [2022-01-18 11:14:22,847 INFO L226 Difference]: Without dead ends: 6286 [2022-01-18 11:14:22,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1020, Invalid=3012, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 11:14:22,848 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 984 mSDsluCounter, 8539 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:22,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 8887 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-01-18 11:14:22,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 5418. [2022-01-18 11:14:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 11:14:22,929 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 11:14:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:22,929 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 11:14:22,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 11:14:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:22,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:22,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:22,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 11:14:22,936 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1644586033, now seen corresponding path program 97 times [2022-01-18 11:14:22,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:22,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594806743] [2022-01-18 11:14:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:22,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:23,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:23,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594806743] [2022-01-18 11:14:23,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594806743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:23,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:23,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:23,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130850680] [2022-01-18 11:14:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:23,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:23,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:23,505 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:28,383 INFO L93 Difference]: Finished difference Result 6514 states and 17135 transitions. [2022-01-18 11:14:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:14:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:28,390 INFO L225 Difference]: With dead ends: 6514 [2022-01-18 11:14:28,390 INFO L226 Difference]: Without dead ends: 6242 [2022-01-18 11:14:28,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1037, Invalid=3253, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:14:28,390 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1051 mSDsluCounter, 7498 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 7875 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:28,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 7875 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-01-18 11:14:28,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5406. [2022-01-18 11:14:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.631267345050879) internal successors, (14222), 5405 states have internal predecessors, (14222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14222 transitions. [2022-01-18 11:14:28,453 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14222 transitions. Word has length 137 [2022-01-18 11:14:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:28,453 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14222 transitions. [2022-01-18 11:14:28,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14222 transitions. [2022-01-18 11:14:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:28,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:28,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:28,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 11:14:28,458 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash -135568175, now seen corresponding path program 98 times [2022-01-18 11:14:28,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:28,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140460052] [2022-01-18 11:14:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:28,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:28,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:28,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140460052] [2022-01-18 11:14:28,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140460052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:28,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:28,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:28,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608957491] [2022-01-18 11:14:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:28,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:28,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:28,980 INFO L87 Difference]: Start difference. First operand 5406 states and 14222 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:34,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:34,835 INFO L93 Difference]: Finished difference Result 6563 states and 17264 transitions. [2022-01-18 11:14:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:14:34,836 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 11:14:34,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:34,844 INFO L225 Difference]: With dead ends: 6563 [2022-01-18 11:14:34,844 INFO L226 Difference]: Without dead ends: 6278 [2022-01-18 11:14:34,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1354, Invalid=3758, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:14:34,845 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1001 mSDsluCounter, 8708 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 9043 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:34,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 9043 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-18 11:14:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-18 11:14:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 11:14:34,899 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 11:14:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:34,899 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 11:14:34,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 11:14:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 11:14:34,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:34,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:34,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 11:14:34,904 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1108393919, now seen corresponding path program 99 times [2022-01-18 11:14:34,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520887271] [2022-01-18 11:14:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:35,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:35,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520887271] [2022-01-18 11:14:35,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520887271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:35,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:35,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 11:14:35,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953172750] [2022-01-18 11:14:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:35,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 11:14:35,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 11:14:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:14:35,389 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 11:14:37,744 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:14:37,747 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 11:14:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:14:37,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=467, Invalid=1513, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:14:37,748 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 708 mSDsluCounter, 8087 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:37,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 8409 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 11:14:37,748 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:14:37,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 11:14:37,749 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 23 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 66ms.. [2022-01-18 11:14:37,750 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:14:37,751 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:14:37,753 INFO L732 BasicCegarLoop]: Path program histogram: [99, 35, 35, 3, 2, 1, 1, 1] [2022-01-18 11:14:37,755 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:14:37,755 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:14:37,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:14:37 BasicIcfg [2022-01-18 11:14:37,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:14:37,757 INFO L158 Benchmark]: Toolchain (without parser) took 692106.45ms. Allocated memory was 375.4MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 321.2MB in the beginning and 2.5GB in the end (delta: -2.2GB). Peak memory consumption was 238.6MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 375.4MB. Free memory is still 338.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.67ms. Allocated memory is still 375.4MB. Free memory was 321.1MB in the beginning and 346.4MB in the end (delta: -25.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 375.4MB. Free memory was 346.4MB in the beginning and 344.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: Boogie Preprocessor took 22.37ms. Allocated memory is still 375.4MB. Free memory was 344.3MB in the beginning and 343.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: RCFGBuilder took 420.21ms. Allocated memory is still 375.4MB. Free memory was 343.2MB in the beginning and 327.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,757 INFO L158 Benchmark]: TraceAbstraction took 691402.23ms. Allocated memory was 375.4MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 327.5MB in the beginning and 2.5GB in the end (delta: -2.2GB). Peak memory consumption was 248.7MB. Max. memory is 16.0GB. [2022-01-18 11:14:37,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 375.4MB. Free memory is still 338.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 213.67ms. Allocated memory is still 375.4MB. Free memory was 321.1MB in the beginning and 346.4MB in the end (delta: -25.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 375.4MB. Free memory was 346.4MB in the beginning and 344.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.37ms. Allocated memory is still 375.4MB. Free memory was 344.3MB in the beginning and 343.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 420.21ms. Allocated memory is still 375.4MB. Free memory was 343.2MB in the beginning and 327.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 691402.23ms. Allocated memory was 375.4MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 327.5MB in the beginning and 2.5GB in the end (delta: -2.2GB). Peak memory consumption was 248.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 23 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 66ms.. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 23 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 66ms.. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 23 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 84 for 66ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 691.2s, OverallIterations: 177, TraceHistogramMax: 1, PathProgramHistogramMax: 99, EmptinessCheckTime: 1.3s, AutomataDifference: 611.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128525 SdHoareTripleChecker+Valid, 89.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128525 mSDsluCounter, 1047386 SdHoareTripleChecker+Invalid, 75.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 995870 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203689 IncrementalHoareTripleChecker+Invalid, 204065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 72498 mSDtfsCounter, 203689 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10262 GetRequests, 1026 SyntacticMatches, 0 SemanticMatches, 9235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119988 ImplicationChecksByTransitivity, 545.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=0, InterpolantAutomatonStates: 7039, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 176 MinimizatonAttempts, 157412 StatesRemovedByMinimization, 175 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 61.2s InterpolantComputationTime, 20675 NumberOfCodeBlocks, 20675 NumberOfCodeBlocksAsserted, 177 NumberOfCheckSat, 20498 ConstructedInterpolants, 0 QuantifiedInterpolants, 224681 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 177 InterpolantComputations, 177 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown