/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-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:00:54,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:00:54,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:00:54,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:00:54,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:00:54,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:00:54,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:00:54,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:00:54,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:00:54,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:00:54,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:00:54,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:00:54,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:00:54,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:00:54,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:00:54,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:00:54,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:00:54,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:00:54,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:00:54,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:00:54,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:00:54,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:00:54,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:00:54,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:00:54,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 11:00:54,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:00:54,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:00:54,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:00:54,086 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 11:00:54,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:00:54,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:00:54,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:00:54,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:00:54,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:00:54,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:00:54,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:00:54,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:00:54,103 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:00:54,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:00:54,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:00:54,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:00:54,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:00:54,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:00:54,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:00:54,106 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:00:54,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:00:54,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:00:54,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:00:54,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:00:54,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:00:54,315 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:00:54,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-01-18 11:00:54,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897b51e6e/2a4397c9ba6542f3a69d512a24f967c4/FLAG289ca7d72 [2022-01-18 11:00:54,721 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:00:54,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-01-18 11:00:54,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897b51e6e/2a4397c9ba6542f3a69d512a24f967c4/FLAG289ca7d72 [2022-01-18 11:00:54,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897b51e6e/2a4397c9ba6542f3a69d512a24f967c4 [2022-01-18 11:00:54,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:00:54,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:00:54,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:00:54,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:00:54,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:00:54,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708dfacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54, skipping insertion in model container [2022-01-18 11:00:54,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:00:54,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:00:54,904 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-chromosome-symm.wvr.c[2695,2708] [2022-01-18 11:00:54,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:00:54,913 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:00:54,928 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-chromosome-symm.wvr.c[2695,2708] [2022-01-18 11:00:54,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:00:54,939 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:00:54,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54 WrapperNode [2022-01-18 11:00:54,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:00:54,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:00:54,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:00:54,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:00:54,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,978 INFO L137 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 202 [2022-01-18 11:00:54,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:00:54,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:00:54,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:00:54,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:00:54,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:54,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:00:55,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:00:55,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:00:55,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:00:55,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (1/1) ... [2022-01-18 11:00:55,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:00:55,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:00:55,035 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 11:00:55,037 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 11:00:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:00:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:00:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:00:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 11:00:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:00:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:00:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:00:55,061 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 11:00:55,131 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:00:55,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:00:55,394 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:00:55,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:00:55,404 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 11:00:55,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:00:55 BoogieIcfgContainer [2022-01-18 11:00:55,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:00:55,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:00:55,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:00:55,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:00:55,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:00:54" (1/3) ... [2022-01-18 11:00:55,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac596b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:00:55, skipping insertion in model container [2022-01-18 11:00:55,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:00:54" (2/3) ... [2022-01-18 11:00:55,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac596b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:00:55, skipping insertion in model container [2022-01-18 11:00:55,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:00:55" (3/3) ... [2022-01-18 11:00:55,414 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2022-01-18 11:00:55,418 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:00:55,418 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:00:55,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:00:55,418 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:00:55,479 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 11:00:55,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,479 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,480 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,481 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,482 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,483 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,483 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,483 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,483 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,484 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,484 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,484 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,492 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,507 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,513 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,522 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,528 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,544 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,550 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:00:55,556 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:00:55,600 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:00:55,605 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 11:00:55,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:00:55,621 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 256 places, 272 transitions, 560 flow [2022-01-18 11:00:55,907 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-18 11:00:55,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:55,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:55,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1901718774, now seen corresponding path program 1 times [2022-01-18 11:00:56,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230959232] [2022-01-18 11:00:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:56,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:56,222 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 11:00:56,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230959232] [2022-01-18 11:00:56,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230959232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:56,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:56,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 11:00:56,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159887564] [2022-01-18 11:00:56,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:56,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 11:00:56,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 11:00:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:00:56,267 INFO L87 Difference]: Start difference. First operand has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 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 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:56,394 INFO L93 Difference]: Finished difference Result 11835 states and 32410 transitions. [2022-01-18 11:00:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 11:00:56,396 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-18 11:00:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:56,464 INFO L225 Difference]: With dead ends: 11835 [2022-01-18 11:00:56,464 INFO L226 Difference]: Without dead ends: 10565 [2022-01-18 11:00:56,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:00:56,470 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:56,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:00:56,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-01-18 11:00:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 10565. [2022-01-18 11:00:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10565 states, 10564 states have (on average 2.7381673608481636) internal successors, (28926), 10564 states have internal predecessors, (28926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10565 states to 10565 states and 28926 transitions. [2022-01-18 11:00:56,847 INFO L78 Accepts]: Start accepts. Automaton has 10565 states and 28926 transitions. Word has length 147 [2022-01-18 11:00:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:56,848 INFO L470 AbstractCegarLoop]: Abstraction has 10565 states and 28926 transitions. [2022-01-18 11:00:56,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 10565 states and 28926 transitions. [2022-01-18 11:00:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-18 11:00:56,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:56,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:00:56,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:00:56,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:56,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash 417763258, now seen corresponding path program 1 times [2022-01-18 11:00:56,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:56,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144959274] [2022-01-18 11:00:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:56,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:57,106 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 11:00:57,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:57,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144959274] [2022-01-18 11:00:57,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144959274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:57,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:00:57,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:00:57,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204124788] [2022-01-18 11:00:57,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:57,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:00:57,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:57,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:00:57,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:00:57,109 INFO L87 Difference]: Start difference. First operand 10565 states and 28926 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:57,242 INFO L93 Difference]: Finished difference Result 10577 states and 28938 transitions. [2022-01-18 11:00:57,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:00:57,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-18 11:00:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:57,315 INFO L225 Difference]: With dead ends: 10577 [2022-01-18 11:00:57,316 INFO L226 Difference]: Without dead ends: 10577 [2022-01-18 11:00:57,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:00:57,319 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 429 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:57,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 437 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:00:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10577 states. [2022-01-18 11:00:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10577 to 10567. [2022-01-18 11:00:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 10566 states have (on average 2.7378383494226766) internal successors, (28928), 10566 states have internal predecessors, (28928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 28928 transitions. [2022-01-18 11:00:57,582 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 28928 transitions. Word has length 147 [2022-01-18 11:00:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:57,584 INFO L470 AbstractCegarLoop]: Abstraction has 10567 states and 28928 transitions. [2022-01-18 11:00:57,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:57,584 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 28928 transitions. [2022-01-18 11:00:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-18 11:00:57,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:57,601 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, 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 11:00:57,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:00:57,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:57,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:57,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1831897314, now seen corresponding path program 1 times [2022-01-18 11:00:57,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:57,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696916297] [2022-01-18 11:00:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:57,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:00:57,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:57,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696916297] [2022-01-18 11:00:57,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696916297] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:00:57,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735920675] [2022-01-18 11:00:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:57,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:00:57,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:00:57,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:00:57,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 11:00:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:57,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 11:00:57,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:00:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:00:58,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:00:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:00:58,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735920675] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:00:58,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:00:58,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-18 11:00:58,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871916165] [2022-01-18 11:00:58,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:00:58,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 11:00:58,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:58,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 11:00:58,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:00:58,355 INFO L87 Difference]: Start difference. First operand 10567 states and 28928 transitions. Second operand has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:58,544 INFO L93 Difference]: Finished difference Result 10595 states and 28956 transitions. [2022-01-18 11:00:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:00:58,545 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 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 161 [2022-01-18 11:00:58,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:58,625 INFO L225 Difference]: With dead ends: 10595 [2022-01-18 11:00:58,625 INFO L226 Difference]: Without dead ends: 10595 [2022-01-18 11:00:58,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:58,626 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 908 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:58,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 1058 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:00:58,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2022-01-18 11:00:58,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 10595. [2022-01-18 11:00:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10595 states, 10594 states have (on average 2.73324523315084) internal successors, (28956), 10594 states have internal predecessors, (28956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10595 states to 10595 states and 28956 transitions. [2022-01-18 11:00:58,883 INFO L78 Accepts]: Start accepts. Automaton has 10595 states and 28956 transitions. Word has length 161 [2022-01-18 11:00:58,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:00:58,883 INFO L470 AbstractCegarLoop]: Abstraction has 10595 states and 28956 transitions. [2022-01-18 11:00:58,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 10595 states and 28956 transitions. [2022-01-18 11:00:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-18 11:00:58,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:00:58,898 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:58,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 11:00:59,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:00:59,118 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:00:59,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:00:59,118 INFO L85 PathProgramCache]: Analyzing trace with hash -634877598, now seen corresponding path program 2 times [2022-01-18 11:00:59,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:00:59,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650665836] [2022-01-18 11:00:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:00:59,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:00:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:00:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 11:00:59,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:00:59,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650665836] [2022-01-18 11:00:59,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650665836] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:00:59,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873470155] [2022-01-18 11:00:59,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:00:59,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:00:59,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:00:59,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:00:59,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 11:00:59,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 11:00:59,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:00:59,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 11:00:59,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:00:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-18 11:00:59,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 11:00:59,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873470155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:00:59,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 11:00:59,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 11:00:59,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107816569] [2022-01-18 11:00:59,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:00:59,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:00:59,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:00:59,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:00:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:00:59,615 INFO L87 Difference]: Start difference. First operand 10595 states and 28956 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:00:59,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:00:59,902 INFO L93 Difference]: Finished difference Result 17422 states and 47718 transitions. [2022-01-18 11:00:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:00:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-01-18 11:00:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:00:59,983 INFO L225 Difference]: With dead ends: 17422 [2022-01-18 11:00:59,983 INFO L226 Difference]: Without dead ends: 17422 [2022-01-18 11:00:59,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:00:59,985 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 855 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:00:59,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 1641 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:00,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17422 states. [2022-01-18 11:01:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17422 to 11327. [2022-01-18 11:01:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11327 states, 11326 states have (on average 2.7511036553063746) internal successors, (31159), 11326 states have internal predecessors, (31159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11327 states to 11327 states and 31159 transitions. [2022-01-18 11:01:00,242 INFO L78 Accepts]: Start accepts. Automaton has 11327 states and 31159 transitions. Word has length 189 [2022-01-18 11:01:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:00,243 INFO L470 AbstractCegarLoop]: Abstraction has 11327 states and 31159 transitions. [2022-01-18 11:01:00,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 11327 states and 31159 transitions. [2022-01-18 11:01:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-18 11:01:00,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:00,317 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:00,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 11:01:00,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-18 11:01:00,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:00,519 INFO L85 PathProgramCache]: Analyzing trace with hash 357756226, now seen corresponding path program 1 times [2022-01-18 11:01:00,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:00,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560918125] [2022-01-18 11:01:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:00,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-18 11:01:00,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:00,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560918125] [2022-01-18 11:01:00,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560918125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:00,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:00,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 11:01:00,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151997578] [2022-01-18 11:01:00,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:00,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 11:01:00,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 11:01:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 11:01:00,570 INFO L87 Difference]: Start difference. First operand 11327 states and 31159 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:00,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:00,662 INFO L93 Difference]: Finished difference Result 20301 states and 55455 transitions. [2022-01-18 11:01:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:01:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-01-18 11:01:00,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:00,705 INFO L225 Difference]: With dead ends: 20301 [2022-01-18 11:01:00,705 INFO L226 Difference]: Without dead ends: 20118 [2022-01-18 11:01:00,705 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 11:01:00,706 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 283 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:00,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 882 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:01:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20118 states. [2022-01-18 11:01:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20118 to 11550. [2022-01-18 11:01:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 11549 states have (on average 2.7529656247294136) internal successors, (31794), 11549 states have internal predecessors, (31794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 31794 transitions. [2022-01-18 11:01:01,025 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 31794 transitions. Word has length 189 [2022-01-18 11:01:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:01,025 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 31794 transitions. [2022-01-18 11:01:01,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 31794 transitions. [2022-01-18 11:01:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-18 11:01:01,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:01,048 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:01,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:01:01,049 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash -687867362, now seen corresponding path program 3 times [2022-01-18 11:01:01,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325648384] [2022-01-18 11:01:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:01,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 11:01:01,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325648384] [2022-01-18 11:01:01,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325648384] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:01:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534598887] [2022-01-18 11:01:01,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:01:01,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:01,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:01:01,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:01:01,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 11:01:01,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-18 11:01:01,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:01:01,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 11:01:01,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:01:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-18 11:01:01,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 11:01:01,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534598887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:01,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 11:01:01,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 11:01:01,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105177761] [2022-01-18 11:01:01,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:01,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 11:01:01,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 11:01:01,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:01:01,608 INFO L87 Difference]: Start difference. First operand 11550 states and 31794 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:02,036 INFO L93 Difference]: Finished difference Result 22700 states and 62199 transitions. [2022-01-18 11:01:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:01:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-01-18 11:01:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:02,094 INFO L225 Difference]: With dead ends: 22700 [2022-01-18 11:01:02,094 INFO L226 Difference]: Without dead ends: 22434 [2022-01-18 11:01:02,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:01:02,095 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 715 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:02,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 1753 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:01:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2022-01-18 11:01:02,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 11566. [2022-01-18 11:01:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11566 states, 11565 states have (on average 2.752961521833117) internal successors, (31838), 11565 states have internal predecessors, (31838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11566 states to 11566 states and 31838 transitions. [2022-01-18 11:01:02,357 INFO L78 Accepts]: Start accepts. Automaton has 11566 states and 31838 transitions. Word has length 189 [2022-01-18 11:01:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:02,358 INFO L470 AbstractCegarLoop]: Abstraction has 11566 states and 31838 transitions. [2022-01-18 11:01:02,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 11566 states and 31838 transitions. [2022-01-18 11:01:02,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-18 11:01:02,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:02,373 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:02,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 11:01:02,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:02,593 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:02,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash -477297476, now seen corresponding path program 4 times [2022-01-18 11:01:02,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:02,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271523466] [2022-01-18 11:01:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:02,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 11:01:02,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271523466] [2022-01-18 11:01:02,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271523466] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:01:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954778949] [2022-01-18 11:01:02,766 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:01:02,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:02,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:01:02,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:01:02,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 11:01:02,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:01:02,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:01:02,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 11:01:02,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:01:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 11:01:03,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:01:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-18 11:01:03,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954778949] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:01:03,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:01:03,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-18 11:01:03,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699622433] [2022-01-18 11:01:03,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:01:03,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:01:03,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:01:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:01:03,529 INFO L87 Difference]: Start difference. First operand 11566 states and 31838 transitions. Second operand has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:03,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:03,821 INFO L93 Difference]: Finished difference Result 11594 states and 31866 transitions. [2022-01-18 11:01:03,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:01:03,822 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 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 189 [2022-01-18 11:01:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:03,845 INFO L225 Difference]: With dead ends: 11594 [2022-01-18 11:01:03,845 INFO L226 Difference]: Without dead ends: 11594 [2022-01-18 11:01:03,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 366 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:01:03,846 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 774 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:03,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 1729 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-01-18 11:01:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 11594. [2022-01-18 11:01:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11594 states, 11593 states have (on average 2.7487276804968515) internal successors, (31866), 11593 states have internal predecessors, (31866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11594 states to 11594 states and 31866 transitions. [2022-01-18 11:01:04,107 INFO L78 Accepts]: Start accepts. Automaton has 11594 states and 31866 transitions. Word has length 189 [2022-01-18 11:01:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:04,107 INFO L470 AbstractCegarLoop]: Abstraction has 11594 states and 31866 transitions. [2022-01-18 11:01:04,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 11594 states and 31866 transitions. [2022-01-18 11:01:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-18 11:01:04,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:04,121 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:04,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-18 11:01:04,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:04,336 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:04,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash 669254972, now seen corresponding path program 5 times [2022-01-18 11:01:04,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:04,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962639643] [2022-01-18 11:01:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:04,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:04,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:04,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962639643] [2022-01-18 11:01:04,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962639643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:04,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:04,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:04,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635263452] [2022-01-18 11:01:04,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:04,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:04,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:04,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:04,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:04,462 INFO L87 Difference]: Start difference. First operand 11594 states and 31866 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:04,674 INFO L93 Difference]: Finished difference Result 19278 states and 52882 transitions. [2022-01-18 11:01:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:01:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-01-18 11:01:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:04,718 INFO L225 Difference]: With dead ends: 19278 [2022-01-18 11:01:04,718 INFO L226 Difference]: Without dead ends: 19278 [2022-01-18 11:01:04,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:01:04,719 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 786 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:04,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 1599 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19278 states. [2022-01-18 11:01:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19278 to 12162. [2022-01-18 11:01:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12162 states, 12161 states have (on average 2.750102787599704) internal successors, (33444), 12161 states have internal predecessors, (33444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12162 states to 12162 states and 33444 transitions. [2022-01-18 11:01:05,061 INFO L78 Accepts]: Start accepts. Automaton has 12162 states and 33444 transitions. Word has length 217 [2022-01-18 11:01:05,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:05,062 INFO L470 AbstractCegarLoop]: Abstraction has 12162 states and 33444 transitions. [2022-01-18 11:01:05,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12162 states and 33444 transitions. [2022-01-18 11:01:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:05,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:05,087 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:05,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:01:05,087 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash 443179207, now seen corresponding path program 1 times [2022-01-18 11:01:05,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:05,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188527338] [2022-01-18 11:01:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:05,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:05,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:05,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188527338] [2022-01-18 11:01:05,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188527338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:05,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:05,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:05,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849876509] [2022-01-18 11:01:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:05,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:05,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:05,175 INFO L87 Difference]: Start difference. First operand 12162 states and 33444 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:05,406 INFO L93 Difference]: Finished difference Result 28045 states and 77106 transitions. [2022-01-18 11:01:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:01:05,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:05,465 INFO L225 Difference]: With dead ends: 28045 [2022-01-18 11:01:05,465 INFO L226 Difference]: Without dead ends: 27940 [2022-01-18 11:01:05,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:01:05,466 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 463 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:05,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1811 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27940 states. [2022-01-18 11:01:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27940 to 12206. [2022-01-18 11:01:05,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12206 states, 12205 states have (on average 2.7516591560835724) internal successors, (33584), 12205 states have internal predecessors, (33584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12206 states to 12206 states and 33584 transitions. [2022-01-18 11:01:05,851 INFO L78 Accepts]: Start accepts. Automaton has 12206 states and 33584 transitions. Word has length 250 [2022-01-18 11:01:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:05,852 INFO L470 AbstractCegarLoop]: Abstraction has 12206 states and 33584 transitions. [2022-01-18 11:01:05,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 12206 states and 33584 transitions. [2022-01-18 11:01:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:05,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:05,868 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:05,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:01:05,868 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash -789159033, now seen corresponding path program 2 times [2022-01-18 11:01:05,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:05,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658499287] [2022-01-18 11:01:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:05,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:05,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:05,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658499287] [2022-01-18 11:01:05,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658499287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:05,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:05,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278187298] [2022-01-18 11:01:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:05,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:05,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:05,969 INFO L87 Difference]: Start difference. First operand 12206 states and 33584 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:06,161 INFO L93 Difference]: Finished difference Result 22661 states and 62115 transitions. [2022-01-18 11:01:06,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:01:06,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:06,204 INFO L225 Difference]: With dead ends: 22661 [2022-01-18 11:01:06,204 INFO L226 Difference]: Without dead ends: 22661 [2022-01-18 11:01:06,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:01:06,204 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 580 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:06,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 1279 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22661 states. [2022-01-18 11:01:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22661 to 12398. [2022-01-18 11:01:06,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12398 states, 12397 states have (on average 2.7526014358312496) internal successors, (34124), 12397 states have internal predecessors, (34124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12398 states to 12398 states and 34124 transitions. [2022-01-18 11:01:06,589 INFO L78 Accepts]: Start accepts. Automaton has 12398 states and 34124 transitions. Word has length 250 [2022-01-18 11:01:06,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:06,590 INFO L470 AbstractCegarLoop]: Abstraction has 12398 states and 34124 transitions. [2022-01-18 11:01:06,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 12398 states and 34124 transitions. [2022-01-18 11:01:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:06,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:06,610 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:06,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:01:06,610 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -683732655, now seen corresponding path program 3 times [2022-01-18 11:01:06,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:06,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120176959] [2022-01-18 11:01:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:06,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:06,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:06,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120176959] [2022-01-18 11:01:06,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120176959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:06,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:06,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:06,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924569511] [2022-01-18 11:01:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:06,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:06,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:06,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:06,709 INFO L87 Difference]: Start difference. First operand 12398 states and 34124 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:06,993 INFO L93 Difference]: Finished difference Result 28449 states and 78088 transitions. [2022-01-18 11:01:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:06,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:07,059 INFO L225 Difference]: With dead ends: 28449 [2022-01-18 11:01:07,059 INFO L226 Difference]: Without dead ends: 28414 [2022-01-18 11:01:07,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:07,060 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 634 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:07,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 1485 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28414 states. [2022-01-18 11:01:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28414 to 12398. [2022-01-18 11:01:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12398 states, 12397 states have (on average 2.751956118415746) internal successors, (34116), 12397 states have internal predecessors, (34116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12398 states to 12398 states and 34116 transitions. [2022-01-18 11:01:07,472 INFO L78 Accepts]: Start accepts. Automaton has 12398 states and 34116 transitions. Word has length 250 [2022-01-18 11:01:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:07,473 INFO L470 AbstractCegarLoop]: Abstraction has 12398 states and 34116 transitions. [2022-01-18 11:01:07,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 12398 states and 34116 transitions. [2022-01-18 11:01:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:07,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:07,489 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:07,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:01:07,490 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:07,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1442601977, now seen corresponding path program 4 times [2022-01-18 11:01:07,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:07,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336435096] [2022-01-18 11:01:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:07,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:07,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:07,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336435096] [2022-01-18 11:01:07,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336435096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:07,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:07,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:01:07,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242399530] [2022-01-18 11:01:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:07,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:01:07,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:07,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:01:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:01:07,640 INFO L87 Difference]: Start difference. First operand 12398 states and 34116 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:07,831 INFO L93 Difference]: Finished difference Result 20675 states and 56742 transitions. [2022-01-18 11:01:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:01:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:07,864 INFO L225 Difference]: With dead ends: 20675 [2022-01-18 11:01:07,865 INFO L226 Difference]: Without dead ends: 20478 [2022-01-18 11:01:07,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:07,867 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 429 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:07,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1771 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20478 states. [2022-01-18 11:01:08,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20478 to 12580. [2022-01-18 11:01:08,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12580 states, 12579 states have (on average 2.7659591382462834) internal successors, (34793), 12579 states have internal predecessors, (34793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12580 states to 12580 states and 34793 transitions. [2022-01-18 11:01:08,168 INFO L78 Accepts]: Start accepts. Automaton has 12580 states and 34793 transitions. Word has length 250 [2022-01-18 11:01:08,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:08,168 INFO L470 AbstractCegarLoop]: Abstraction has 12580 states and 34793 transitions. [2022-01-18 11:01:08,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,168 INFO L276 IsEmpty]: Start isEmpty. Operand 12580 states and 34793 transitions. [2022-01-18 11:01:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:08,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:08,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:08,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:01:08,186 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash 75588711, now seen corresponding path program 5 times [2022-01-18 11:01:08,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:08,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787600970] [2022-01-18 11:01:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:08,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:08,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:08,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787600970] [2022-01-18 11:01:08,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787600970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:08,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:08,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:08,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280174408] [2022-01-18 11:01:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:08,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:08,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:08,292 INFO L87 Difference]: Start difference. First operand 12580 states and 34793 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:08,528 INFO L93 Difference]: Finished difference Result 35855 states and 98380 transitions. [2022-01-18 11:01:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:08,594 INFO L225 Difference]: With dead ends: 35855 [2022-01-18 11:01:08,594 INFO L226 Difference]: Without dead ends: 35762 [2022-01-18 11:01:08,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:08,595 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 456 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:08,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 1739 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35762 states. [2022-01-18 11:01:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35762 to 12604. [2022-01-18 11:01:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12604 states, 12603 states have (on average 2.765928747123701) internal successors, (34859), 12603 states have internal predecessors, (34859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 34859 transitions. [2022-01-18 11:01:08,998 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 34859 transitions. Word has length 250 [2022-01-18 11:01:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:08,999 INFO L470 AbstractCegarLoop]: Abstraction has 12604 states and 34859 transitions. [2022-01-18 11:01:08,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 34859 transitions. [2022-01-18 11:01:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:09,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:09,016 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:09,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:01:09,016 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:09,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1156749529, now seen corresponding path program 6 times [2022-01-18 11:01:09,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:09,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270347676] [2022-01-18 11:01:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:09,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:09,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:09,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270347676] [2022-01-18 11:01:09,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270347676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:09,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:09,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:09,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629376197] [2022-01-18 11:01:09,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:09,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:09,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:09,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:09,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:09,129 INFO L87 Difference]: Start difference. First operand 12604 states and 34859 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:09,508 INFO L93 Difference]: Finished difference Result 42880 states and 117381 transitions. [2022-01-18 11:01:09,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:09,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:09,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:09,590 INFO L225 Difference]: With dead ends: 42880 [2022-01-18 11:01:09,590 INFO L226 Difference]: Without dead ends: 42696 [2022-01-18 11:01:09,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:09,591 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 724 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:09,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 1740 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42696 states. [2022-01-18 11:01:09,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42696 to 12612. [2022-01-18 11:01:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12612 states, 12611 states have (on average 2.7659186424549995) internal successors, (34881), 12611 states have internal predecessors, (34881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12612 states to 12612 states and 34881 transitions. [2022-01-18 11:01:10,017 INFO L78 Accepts]: Start accepts. Automaton has 12612 states and 34881 transitions. Word has length 250 [2022-01-18 11:01:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:10,018 INFO L470 AbstractCegarLoop]: Abstraction has 12612 states and 34881 transitions. [2022-01-18 11:01:10,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 12612 states and 34881 transitions. [2022-01-18 11:01:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:10,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:10,042 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:10,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:01:10,042 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1051323151, now seen corresponding path program 7 times [2022-01-18 11:01:10,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:10,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790070628] [2022-01-18 11:01:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:10,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:10,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790070628] [2022-01-18 11:01:10,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790070628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:10,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:10,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:10,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326229151] [2022-01-18 11:01:10,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:10,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:10,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:10,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:10,152 INFO L87 Difference]: Start difference. First operand 12612 states and 34881 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:10,486 INFO L93 Difference]: Finished difference Result 37949 states and 104147 transitions. [2022-01-18 11:01:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 11:01:10,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:10,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:10,548 INFO L225 Difference]: With dead ends: 37949 [2022-01-18 11:01:10,548 INFO L226 Difference]: Without dead ends: 37918 [2022-01-18 11:01:10,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:01:10,549 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 560 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:10,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 1567 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:10,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37918 states. [2022-01-18 11:01:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37918 to 12596. [2022-01-18 11:01:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 2.7659388646288208) internal successors, (34837), 12595 states have internal predecessors, (34837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 34837 transitions. [2022-01-18 11:01:10,898 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 34837 transitions. Word has length 250 [2022-01-18 11:01:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:10,898 INFO L470 AbstractCegarLoop]: Abstraction has 12596 states and 34837 transitions. [2022-01-18 11:01:10,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 34837 transitions. [2022-01-18 11:01:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:10,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:10,916 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:10,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:01:10,916 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:10,917 INFO L85 PathProgramCache]: Analyzing trace with hash -850633543, now seen corresponding path program 8 times [2022-01-18 11:01:10,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:10,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646797559] [2022-01-18 11:01:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:10,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:11,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:11,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646797559] [2022-01-18 11:01:11,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646797559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:11,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:11,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:11,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446218288] [2022-01-18 11:01:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:11,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:11,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:11,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:11,021 INFO L87 Difference]: Start difference. First operand 12596 states and 34837 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:11,225 INFO L93 Difference]: Finished difference Result 29556 states and 80740 transitions. [2022-01-18 11:01:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:11,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:11,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:11,278 INFO L225 Difference]: With dead ends: 29556 [2022-01-18 11:01:11,279 INFO L226 Difference]: Without dead ends: 29372 [2022-01-18 11:01:11,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:11,279 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 739 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:11,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 1503 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29372 states. [2022-01-18 11:01:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29372 to 12612. [2022-01-18 11:01:11,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12612 states, 12611 states have (on average 2.7659186424549995) internal successors, (34881), 12611 states have internal predecessors, (34881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12612 states to 12612 states and 34881 transitions. [2022-01-18 11:01:11,623 INFO L78 Accepts]: Start accepts. Automaton has 12612 states and 34881 transitions. Word has length 250 [2022-01-18 11:01:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:11,624 INFO L470 AbstractCegarLoop]: Abstraction has 12612 states and 34881 transitions. [2022-01-18 11:01:11,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 12612 states and 34881 transitions. [2022-01-18 11:01:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:11,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:11,642 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:11,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:01:11,643 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 389047183, now seen corresponding path program 9 times [2022-01-18 11:01:11,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:11,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832654651] [2022-01-18 11:01:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:11,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:11,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:11,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832654651] [2022-01-18 11:01:11,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832654651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:11,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:11,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:11,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831392662] [2022-01-18 11:01:11,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:11,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:11,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:11,752 INFO L87 Difference]: Start difference. First operand 12612 states and 34881 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:12,050 INFO L93 Difference]: Finished difference Result 36859 states and 101148 transitions. [2022-01-18 11:01:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:01:12,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:12,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:12,117 INFO L225 Difference]: With dead ends: 36859 [2022-01-18 11:01:12,117 INFO L226 Difference]: Without dead ends: 36828 [2022-01-18 11:01:12,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:01:12,118 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 791 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:12,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 1818 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36828 states. [2022-01-18 11:01:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36828 to 12604. [2022-01-18 11:01:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12604 states, 12603 states have (on average 2.765928747123701) internal successors, (34859), 12603 states have internal predecessors, (34859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 34859 transitions. [2022-01-18 11:01:12,525 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 34859 transitions. Word has length 250 [2022-01-18 11:01:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:12,525 INFO L470 AbstractCegarLoop]: Abstraction has 12604 states and 34859 transitions. [2022-01-18 11:01:12,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 34859 transitions. [2022-01-18 11:01:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:12,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:12,543 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:12,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:01:12,544 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:12,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:12,544 INFO L85 PathProgramCache]: Analyzing trace with hash -81936489, now seen corresponding path program 10 times [2022-01-18 11:01:12,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:12,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649849645] [2022-01-18 11:01:12,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:12,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:12,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:12,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649849645] [2022-01-18 11:01:12,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649849645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:12,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:12,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:12,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032090635] [2022-01-18 11:01:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:12,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:12,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:12,643 INFO L87 Difference]: Start difference. First operand 12604 states and 34859 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:12,875 INFO L93 Difference]: Finished difference Result 29067 states and 79404 transitions. [2022-01-18 11:01:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:12,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:12,932 INFO L225 Difference]: With dead ends: 29067 [2022-01-18 11:01:12,932 INFO L226 Difference]: Without dead ends: 28974 [2022-01-18 11:01:12,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:12,933 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 470 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:12,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 2170 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28974 states. [2022-01-18 11:01:13,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28974 to 12596. [2022-01-18 11:01:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 2.7653036919412464) internal successors, (34829), 12595 states have internal predecessors, (34829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 34829 transitions. [2022-01-18 11:01:13,289 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 34829 transitions. Word has length 250 [2022-01-18 11:01:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:13,289 INFO L470 AbstractCegarLoop]: Abstraction has 12596 states and 34829 transitions. [2022-01-18 11:01:13,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 34829 transitions. [2022-01-18 11:01:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:13,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:13,308 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:13,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:01:13,309 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1314274729, now seen corresponding path program 11 times [2022-01-18 11:01:13,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:13,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141839296] [2022-01-18 11:01:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:13,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:13,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:13,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141839296] [2022-01-18 11:01:13,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141839296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:13,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:13,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:13,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757640859] [2022-01-18 11:01:13,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:13,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:13,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:13,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:13,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:13,428 INFO L87 Difference]: Start difference. First operand 12596 states and 34829 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:13,713 INFO L93 Difference]: Finished difference Result 35746 states and 97351 transitions. [2022-01-18 11:01:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:01:13,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:13,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:13,790 INFO L225 Difference]: With dead ends: 35746 [2022-01-18 11:01:13,790 INFO L226 Difference]: Without dead ends: 35522 [2022-01-18 11:01:13,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:13,790 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 858 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:13,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 1451 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35522 states. [2022-01-18 11:01:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35522 to 12604. [2022-01-18 11:01:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12604 states, 12603 states have (on average 2.765293977624375) internal successors, (34851), 12603 states have internal predecessors, (34851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 34851 transitions. [2022-01-18 11:01:14,161 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 34851 transitions. Word has length 250 [2022-01-18 11:01:14,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:14,161 INFO L470 AbstractCegarLoop]: Abstraction has 12604 states and 34851 transitions. [2022-01-18 11:01:14,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 34851 transitions. [2022-01-18 11:01:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:14,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:14,180 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:14,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:01:14,180 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1208848351, now seen corresponding path program 12 times [2022-01-18 11:01:14,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:14,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359218221] [2022-01-18 11:01:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:14,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:14,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:14,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359218221] [2022-01-18 11:01:14,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359218221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:14,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:14,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:14,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860094426] [2022-01-18 11:01:14,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:14,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:14,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:14,295 INFO L87 Difference]: Start difference. First operand 12604 states and 34851 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:14,558 INFO L93 Difference]: Finished difference Result 30117 states and 82300 transitions. [2022-01-18 11:01:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 11:01:14,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:14,609 INFO L225 Difference]: With dead ends: 30117 [2022-01-18 11:01:14,610 INFO L226 Difference]: Without dead ends: 30086 [2022-01-18 11:01:14,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-18 11:01:14,610 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 699 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:14,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 1977 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:14,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30086 states. [2022-01-18 11:01:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30086 to 12588. [2022-01-18 11:01:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12588 states, 12587 states have (on average 2.7653134186064987) internal successors, (34807), 12587 states have internal predecessors, (34807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12588 states to 12588 states and 34807 transitions. [2022-01-18 11:01:14,904 INFO L78 Accepts]: Start accepts. Automaton has 12588 states and 34807 transitions. Word has length 250 [2022-01-18 11:01:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:14,904 INFO L470 AbstractCegarLoop]: Abstraction has 12588 states and 34807 transitions. [2022-01-18 11:01:14,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 12588 states and 34807 transitions. [2022-01-18 11:01:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:14,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:14,921 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:14,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:01:14,921 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:14,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1008158743, now seen corresponding path program 13 times [2022-01-18 11:01:14,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:14,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842241877] [2022-01-18 11:01:14,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:14,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:15,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:15,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842241877] [2022-01-18 11:01:15,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842241877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:15,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:15,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:15,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786280149] [2022-01-18 11:01:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:15,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:15,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:15,016 INFO L87 Difference]: Start difference. First operand 12588 states and 34807 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:15,214 INFO L93 Difference]: Finished difference Result 26517 states and 72455 transitions. [2022-01-18 11:01:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:01:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:15,260 INFO L225 Difference]: With dead ends: 26517 [2022-01-18 11:01:15,260 INFO L226 Difference]: Without dead ends: 26293 [2022-01-18 11:01:15,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:15,261 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 788 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:15,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 1372 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:15,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26293 states. [2022-01-18 11:01:15,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26293 to 12604. [2022-01-18 11:01:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12604 states, 12603 states have (on average 2.765293977624375) internal successors, (34851), 12603 states have internal predecessors, (34851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 34851 transitions. [2022-01-18 11:01:15,581 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 34851 transitions. Word has length 250 [2022-01-18 11:01:15,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:15,582 INFO L470 AbstractCegarLoop]: Abstraction has 12604 states and 34851 transitions. [2022-01-18 11:01:15,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:15,582 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 34851 transitions. [2022-01-18 11:01:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:15,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:15,607 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:15,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:01:15,608 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:15,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:15,608 INFO L85 PathProgramCache]: Analyzing trace with hash 231521983, now seen corresponding path program 14 times [2022-01-18 11:01:15,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:15,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362086234] [2022-01-18 11:01:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:15,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:15,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:15,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362086234] [2022-01-18 11:01:15,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362086234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:15,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:15,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:15,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207722252] [2022-01-18 11:01:15,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:15,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:15,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:15,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:15,715 INFO L87 Difference]: Start difference. First operand 12604 states and 34851 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:16,037 INFO L93 Difference]: Finished difference Result 28975 states and 79122 transitions. [2022-01-18 11:01:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:01:16,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:16,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:16,095 INFO L225 Difference]: With dead ends: 28975 [2022-01-18 11:01:16,095 INFO L226 Difference]: Without dead ends: 28944 [2022-01-18 11:01:16,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:01:16,097 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 839 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:16,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 2154 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28944 states. [2022-01-18 11:01:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28944 to 12572. [2022-01-18 11:01:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12572 states, 12571 states have (on average 2.7653329090764456) internal successors, (34763), 12571 states have internal predecessors, (34763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12572 states to 12572 states and 34763 transitions. [2022-01-18 11:01:16,438 INFO L78 Accepts]: Start accepts. Automaton has 12572 states and 34763 transitions. Word has length 250 [2022-01-18 11:01:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:16,438 INFO L470 AbstractCegarLoop]: Abstraction has 12572 states and 34763 transitions. [2022-01-18 11:01:16,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12572 states and 34763 transitions. [2022-01-18 11:01:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:16,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:16,461 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:16,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:01:16,461 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2003647307, now seen corresponding path program 15 times [2022-01-18 11:01:16,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:16,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243556516] [2022-01-18 11:01:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:16,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:16,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:16,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243556516] [2022-01-18 11:01:16,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243556516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:16,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:16,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:16,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107781794] [2022-01-18 11:01:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:16,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:16,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:16,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:16,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:16,556 INFO L87 Difference]: Start difference. First operand 12572 states and 34763 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:16,889 INFO L93 Difference]: Finished difference Result 25303 states and 68964 transitions. [2022-01-18 11:01:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 11:01:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:16,934 INFO L225 Difference]: With dead ends: 25303 [2022-01-18 11:01:16,934 INFO L226 Difference]: Without dead ends: 25075 [2022-01-18 11:01:16,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-18 11:01:16,935 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 790 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:16,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 2048 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25075 states. [2022-01-18 11:01:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25075 to 11836. [2022-01-18 11:01:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11836 states, 11835 states have (on average 2.7490494296577945) internal successors, (32535), 11835 states have internal predecessors, (32535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11836 states to 11836 states and 32535 transitions. [2022-01-18 11:01:17,223 INFO L78 Accepts]: Start accepts. Automaton has 11836 states and 32535 transitions. Word has length 250 [2022-01-18 11:01:17,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:17,223 INFO L470 AbstractCegarLoop]: Abstraction has 11836 states and 32535 transitions. [2022-01-18 11:01:17,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,223 INFO L276 IsEmpty]: Start isEmpty. Operand 11836 states and 32535 transitions. [2022-01-18 11:01:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:17,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:17,239 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:17,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:01:17,240 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 860905151, now seen corresponding path program 16 times [2022-01-18 11:01:17,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706524485] [2022-01-18 11:01:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:17,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:17,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:17,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706524485] [2022-01-18 11:01:17,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706524485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:17,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:17,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:17,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357499739] [2022-01-18 11:01:17,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:17,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:17,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:17,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:17,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:17,339 INFO L87 Difference]: Start difference. First operand 11836 states and 32535 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:17,601 INFO L93 Difference]: Finished difference Result 27895 states and 76041 transitions. [2022-01-18 11:01:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:01:17,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:17,652 INFO L225 Difference]: With dead ends: 27895 [2022-01-18 11:01:17,652 INFO L226 Difference]: Without dead ends: 27864 [2022-01-18 11:01:17,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:01:17,652 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 714 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:17,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 1879 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27864 states. [2022-01-18 11:01:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27864 to 11820. [2022-01-18 11:01:17,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11820 states, 11819 states have (on average 2.7490481428208815) internal successors, (32491), 11819 states have internal predecessors, (32491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11820 states to 11820 states and 32491 transitions. [2022-01-18 11:01:17,955 INFO L78 Accepts]: Start accepts. Automaton has 11820 states and 32491 transitions. Word has length 250 [2022-01-18 11:01:17,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:17,955 INFO L470 AbstractCegarLoop]: Abstraction has 11820 states and 32491 transitions. [2022-01-18 11:01:17,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 11820 states and 32491 transitions. [2022-01-18 11:01:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:17,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:17,970 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:17,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:01:17,971 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:17,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:17,971 INFO L85 PathProgramCache]: Analyzing trace with hash -990772733, now seen corresponding path program 1 times [2022-01-18 11:01:17,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:17,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002685787] [2022-01-18 11:01:17,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:17,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:18,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:18,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002685787] [2022-01-18 11:01:18,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002685787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:18,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:18,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:18,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620828594] [2022-01-18 11:01:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:18,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:18,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:18,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:18,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:18,073 INFO L87 Difference]: Start difference. First operand 11820 states and 32491 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:18,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:18,314 INFO L93 Difference]: Finished difference Result 24748 states and 67827 transitions. [2022-01-18 11:01:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:01:18,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:18,356 INFO L225 Difference]: With dead ends: 24748 [2022-01-18 11:01:18,356 INFO L226 Difference]: Without dead ends: 24720 [2022-01-18 11:01:18,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:01:18,357 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 706 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:18,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 1688 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:18,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24720 states. [2022-01-18 11:01:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24720 to 11816. [2022-01-18 11:01:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11816 states, 11815 states have (on average 2.7490478205670756) internal successors, (32480), 11815 states have internal predecessors, (32480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11816 states to 11816 states and 32480 transitions. [2022-01-18 11:01:18,633 INFO L78 Accepts]: Start accepts. Automaton has 11816 states and 32480 transitions. Word has length 250 [2022-01-18 11:01:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:18,633 INFO L470 AbstractCegarLoop]: Abstraction has 11816 states and 32480 transitions. [2022-01-18 11:01:18,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 11816 states and 32480 transitions. [2022-01-18 11:01:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:18,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:18,649 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:18,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:01:18,650 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:18,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash 470838405, now seen corresponding path program 2 times [2022-01-18 11:01:18,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:18,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93305102] [2022-01-18 11:01:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:18,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:18,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93305102] [2022-01-18 11:01:18,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93305102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:18,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:18,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:18,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046886881] [2022-01-18 11:01:18,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:18,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:18,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:18,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:18,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:18,762 INFO L87 Difference]: Start difference. First operand 11816 states and 32480 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:19,025 INFO L93 Difference]: Finished difference Result 32702 states and 89351 transitions. [2022-01-18 11:01:19,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 11:01:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:19,084 INFO L225 Difference]: With dead ends: 32702 [2022-01-18 11:01:19,084 INFO L226 Difference]: Without dead ends: 32475 [2022-01-18 11:01:19,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-01-18 11:01:19,085 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 814 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:19,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 1884 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:19,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32475 states. [2022-01-18 11:01:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32475 to 11848. [2022-01-18 11:01:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 2.7490503925044316) internal successors, (32568), 11847 states have internal predecessors, (32568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 32568 transitions. [2022-01-18 11:01:19,378 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 32568 transitions. Word has length 250 [2022-01-18 11:01:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:19,378 INFO L470 AbstractCegarLoop]: Abstraction has 11848 states and 32568 transitions. [2022-01-18 11:01:19,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 32568 transitions. [2022-01-18 11:01:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:19,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:19,394 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:19,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:01:19,394 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1939362393, now seen corresponding path program 3 times [2022-01-18 11:01:19,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:19,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84102785] [2022-01-18 11:01:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:19,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:19,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:19,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84102785] [2022-01-18 11:01:19,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84102785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:19,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:19,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:19,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710375213] [2022-01-18 11:01:19,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:19,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:19,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:19,513 INFO L87 Difference]: Start difference. First operand 11848 states and 32568 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:19,817 INFO L93 Difference]: Finished difference Result 26726 states and 73223 transitions. [2022-01-18 11:01:19,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:01:19,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:19,864 INFO L225 Difference]: With dead ends: 26726 [2022-01-18 11:01:19,864 INFO L226 Difference]: Without dead ends: 26674 [2022-01-18 11:01:19,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-01-18 11:01:19,864 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 790 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:19,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 1819 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2022-01-18 11:01:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 11864. [2022-01-18 11:01:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11864 states, 11863 states have (on average 2.7497260389446176) internal successors, (32620), 11863 states have internal predecessors, (32620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11864 states to 11864 states and 32620 transitions. [2022-01-18 11:01:20,143 INFO L78 Accepts]: Start accepts. Automaton has 11864 states and 32620 transitions. Word has length 250 [2022-01-18 11:01:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:20,143 INFO L470 AbstractCegarLoop]: Abstraction has 11864 states and 32620 transitions. [2022-01-18 11:01:20,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 11864 states and 32620 transitions. [2022-01-18 11:01:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:20,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:20,158 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:20,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:01:20,158 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 754152743, now seen corresponding path program 4 times [2022-01-18 11:01:20,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:20,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576353147] [2022-01-18 11:01:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:20,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:20,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576353147] [2022-01-18 11:01:20,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576353147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:20,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:20,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:20,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164448151] [2022-01-18 11:01:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:20,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:20,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:20,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:20,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:20,255 INFO L87 Difference]: Start difference. First operand 11864 states and 32620 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:20,439 INFO L93 Difference]: Finished difference Result 23628 states and 64782 transitions. [2022-01-18 11:01:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 11:01:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:20,481 INFO L225 Difference]: With dead ends: 23628 [2022-01-18 11:01:20,481 INFO L226 Difference]: Without dead ends: 23397 [2022-01-18 11:01:20,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:20,482 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 674 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:20,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 1304 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23397 states. [2022-01-18 11:01:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23397 to 11848. [2022-01-18 11:01:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 2.749388030725078) internal successors, (32572), 11847 states have internal predecessors, (32572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 32572 transitions. [2022-01-18 11:01:20,814 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 32572 transitions. Word has length 250 [2022-01-18 11:01:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:20,814 INFO L470 AbstractCegarLoop]: Abstraction has 11848 states and 32572 transitions. [2022-01-18 11:01:20,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 32572 transitions. [2022-01-18 11:01:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:20,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:20,830 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:20,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:01:20,830 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:20,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2107062465, now seen corresponding path program 5 times [2022-01-18 11:01:20,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:20,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179818236] [2022-01-18 11:01:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:20,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:20,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:20,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179818236] [2022-01-18 11:01:20,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179818236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:20,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:20,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:20,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102143416] [2022-01-18 11:01:20,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:20,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:20,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:20,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:20,951 INFO L87 Difference]: Start difference. First operand 11848 states and 32572 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:21,115 INFO L93 Difference]: Finished difference Result 24694 states and 67675 transitions. [2022-01-18 11:01:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:21,155 INFO L225 Difference]: With dead ends: 24694 [2022-01-18 11:01:21,155 INFO L226 Difference]: Without dead ends: 24614 [2022-01-18 11:01:21,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:01:21,156 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 401 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:21,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1571 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:21,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24614 states. [2022-01-18 11:01:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24614 to 11840. [2022-01-18 11:01:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11840 states, 11839 states have (on average 2.7490497508235494) internal successors, (32546), 11839 states have internal predecessors, (32546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 32546 transitions. [2022-01-18 11:01:21,456 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 32546 transitions. Word has length 250 [2022-01-18 11:01:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:21,456 INFO L470 AbstractCegarLoop]: Abstraction has 11840 states and 32546 transitions. [2022-01-18 11:01:21,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 32546 transitions. [2022-01-18 11:01:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:21,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:21,468 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:21,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:01:21,468 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1358345733, now seen corresponding path program 6 times [2022-01-18 11:01:21,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:21,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117530390] [2022-01-18 11:01:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:21,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:21,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:21,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117530390] [2022-01-18 11:01:21,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117530390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:21,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:21,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:21,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013791169] [2022-01-18 11:01:21,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:21,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:21,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:21,555 INFO L87 Difference]: Start difference. First operand 11840 states and 32546 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:21,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:21,868 INFO L93 Difference]: Finished difference Result 42287 states and 115591 transitions. [2022-01-18 11:01:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:01:21,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:21,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:21,942 INFO L225 Difference]: With dead ends: 42287 [2022-01-18 11:01:21,942 INFO L226 Difference]: Without dead ends: 42100 [2022-01-18 11:01:21,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:01:21,943 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1004 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:21,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 1784 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42100 states. [2022-01-18 11:01:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42100 to 11848. [2022-01-18 11:01:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 2.7490503925044316) internal successors, (32568), 11847 states have internal predecessors, (32568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 32568 transitions. [2022-01-18 11:01:22,291 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 32568 transitions. Word has length 250 [2022-01-18 11:01:22,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:22,292 INFO L470 AbstractCegarLoop]: Abstraction has 11848 states and 32568 transitions. [2022-01-18 11:01:22,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:22,292 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 32568 transitions. [2022-01-18 11:01:22,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:22,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:22,305 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:22,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:01:22,305 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:22,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1051855065, now seen corresponding path program 7 times [2022-01-18 11:01:22,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:22,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705221122] [2022-01-18 11:01:22,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:22,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:22,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:22,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705221122] [2022-01-18 11:01:22,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705221122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:22,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:22,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:22,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761026403] [2022-01-18 11:01:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:22,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:22,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:22,384 INFO L87 Difference]: Start difference. First operand 11848 states and 32568 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:22,731 INFO L93 Difference]: Finished difference Result 35819 states and 98030 transitions. [2022-01-18 11:01:22,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:01:22,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:22,786 INFO L225 Difference]: With dead ends: 35819 [2022-01-18 11:01:22,786 INFO L226 Difference]: Without dead ends: 35767 [2022-01-18 11:01:22,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:01:22,786 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 882 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:22,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2043 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:01:22,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35767 states. [2022-01-18 11:01:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35767 to 11840. [2022-01-18 11:01:23,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11840 states, 11839 states have (on average 2.7487118844497003) internal successors, (32542), 11839 states have internal predecessors, (32542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 32542 transitions. [2022-01-18 11:01:23,081 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 32542 transitions. Word has length 250 [2022-01-18 11:01:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:23,081 INFO L470 AbstractCegarLoop]: Abstraction has 11840 states and 32542 transitions. [2022-01-18 11:01:23,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 32542 transitions. [2022-01-18 11:01:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:23,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:23,095 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:23,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:01:23,095 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:23,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1641660071, now seen corresponding path program 8 times [2022-01-18 11:01:23,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:23,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323144393] [2022-01-18 11:01:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:23,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:23,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:23,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323144393] [2022-01-18 11:01:23,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323144393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:23,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:23,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:23,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140701265] [2022-01-18 11:01:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:23,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:23,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:23,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:23,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:23,177 INFO L87 Difference]: Start difference. First operand 11840 states and 32542 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:23,350 INFO L93 Difference]: Finished difference Result 25963 states and 70830 transitions. [2022-01-18 11:01:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:23,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:23,393 INFO L225 Difference]: With dead ends: 25963 [2022-01-18 11:01:23,393 INFO L226 Difference]: Without dead ends: 25772 [2022-01-18 11:01:23,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:23,393 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 868 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:23,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 1565 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25772 states. [2022-01-18 11:01:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25772 to 11076. [2022-01-18 11:01:23,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11076 states, 11075 states have (on average 2.730744920993228) internal successors, (30243), 11075 states have internal predecessors, (30243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11076 states to 11076 states and 30243 transitions. [2022-01-18 11:01:23,635 INFO L78 Accepts]: Start accepts. Automaton has 11076 states and 30243 transitions. Word has length 250 [2022-01-18 11:01:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:23,635 INFO L470 AbstractCegarLoop]: Abstraction has 11076 states and 30243 transitions. [2022-01-18 11:01:23,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,635 INFO L276 IsEmpty]: Start isEmpty. Operand 11076 states and 30243 transitions. [2022-01-18 11:01:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:23,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:23,648 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:23,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:01:23,648 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:23,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1300397503, now seen corresponding path program 9 times [2022-01-18 11:01:23,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:23,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118402232] [2022-01-18 11:01:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:23,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:23,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118402232] [2022-01-18 11:01:23,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118402232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:23,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:23,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:01:23,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178851504] [2022-01-18 11:01:23,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:23,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:01:23,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:01:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:01:23,728 INFO L87 Difference]: Start difference. First operand 11076 states and 30243 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:23,920 INFO L93 Difference]: Finished difference Result 32883 states and 89826 transitions. [2022-01-18 11:01:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:01:23,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:23,973 INFO L225 Difference]: With dead ends: 32883 [2022-01-18 11:01:23,973 INFO L226 Difference]: Without dead ends: 32795 [2022-01-18 11:01:23,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:23,974 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 416 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:23,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1611 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32795 states. [2022-01-18 11:01:24,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32795 to 11044. [2022-01-18 11:01:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11044 states, 11043 states have (on average 2.7299646835099156) internal successors, (30147), 11043 states have internal predecessors, (30147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11044 states to 11044 states and 30147 transitions. [2022-01-18 11:01:24,261 INFO L78 Accepts]: Start accepts. Automaton has 11044 states and 30147 transitions. Word has length 250 [2022-01-18 11:01:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:24,262 INFO L470 AbstractCegarLoop]: Abstraction has 11044 states and 30147 transitions. [2022-01-18 11:01:24,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 11044 states and 30147 transitions. [2022-01-18 11:01:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-18 11:01:24,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:24,274 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:24,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:01:24,274 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash -100180351, now seen corresponding path program 10 times [2022-01-18 11:01:24,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:24,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172171877] [2022-01-18 11:01:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:24,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:01:24,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:24,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172171877] [2022-01-18 11:01:24,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172171877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:01:24,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:01:24,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 11:01:24,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179808828] [2022-01-18 11:01:24,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:01:24,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 11:01:24,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:24,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 11:01:24,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 11:01:24,355 INFO L87 Difference]: Start difference. First operand 11044 states and 30147 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:24,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:01:24,504 INFO L93 Difference]: Finished difference Result 17167 states and 46992 transitions. [2022-01-18 11:01:24,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:01:24,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-01-18 11:01:24,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:01:24,531 INFO L225 Difference]: With dead ends: 17167 [2022-01-18 11:01:24,531 INFO L226 Difference]: Without dead ends: 17039 [2022-01-18 11:01:24,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:01:24,532 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 181 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:01:24,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 1942 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:01:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17039 states. [2022-01-18 11:01:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17039 to 11036. [2022-01-18 11:01:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11036 states, 11035 states have (on average 2.729587675577707) internal successors, (30121), 11035 states have internal predecessors, (30121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:24,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11036 states to 11036 states and 30121 transitions. [2022-01-18 11:01:24,743 INFO L78 Accepts]: Start accepts. Automaton has 11036 states and 30121 transitions. Word has length 250 [2022-01-18 11:01:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:01:24,744 INFO L470 AbstractCegarLoop]: Abstraction has 11036 states and 30121 transitions. [2022-01-18 11:01:24,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:01:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand 11036 states and 30121 transitions. [2022-01-18 11:01:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:01:24,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:01:24,757 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:24,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:01:24,758 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:01:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:01:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash -387978320, now seen corresponding path program 1 times [2022-01-18 11:01:24,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:01:24,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455028497] [2022-01-18 11:01:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:24,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:01:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:25,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:01:25,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455028497] [2022-01-18 11:01:25,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455028497] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:01:25,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175620630] [2022-01-18 11:01:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:01:25,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:01:25,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:01:25,914 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:01:25,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 11:01:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:01:26,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:01:26,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:01:26,977 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:01:26,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:01:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:27,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:01:33,332 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:01:33,332 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:01:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:01:33,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175620630] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:01:33,561 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:01:33,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 35, 30] total 95 [2022-01-18 11:01:33,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819506429] [2022-01-18 11:01:33,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:01:33,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-18 11:01:33,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:01:33,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-18 11:01:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=8519, Unknown=5, NotChecked=0, Total=8930 [2022-01-18 11:01:33,565 INFO L87 Difference]: Start difference. First operand 11036 states and 30121 transitions. Second operand has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:10,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:02:10,012 INFO L93 Difference]: Finished difference Result 67629 states and 185265 transitions. [2022-01-18 11:02:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-01-18 11:02:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:02:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:02:10,146 INFO L225 Difference]: With dead ends: 67629 [2022-01-18 11:02:10,146 INFO L226 Difference]: Without dead ends: 66923 [2022-01-18 11:02:10,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1115 GetRequests, 754 SyntacticMatches, 1 SemanticMatches, 360 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43919 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=15891, Invalid=114786, Unknown=5, NotChecked=0, Total=130682 [2022-01-18 11:02:10,165 INFO L933 BasicCegarLoop]: 1882 mSDtfsCounter, 13107 mSDsluCounter, 74791 mSDsCounter, 0 mSdLazyCounter, 17864 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13107 SdHoareTripleChecker+Valid, 75268 SdHoareTripleChecker+Invalid, 19682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 17864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1486 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:02:10,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13107 Valid, 75268 Invalid, 19682 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [332 Valid, 17864 Invalid, 0 Unknown, 1486 Unchecked, 7.8s Time] [2022-01-18 11:02:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66923 states. [2022-01-18 11:02:10,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66923 to 15171. [2022-01-18 11:02:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15171 states, 15170 states have (on average 2.7402109426499672) internal successors, (41569), 15170 states have internal predecessors, (41569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15171 states to 15171 states and 41569 transitions. [2022-01-18 11:02:10,697 INFO L78 Accepts]: Start accepts. Automaton has 15171 states and 41569 transitions. Word has length 283 [2022-01-18 11:02:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:02:10,697 INFO L470 AbstractCegarLoop]: Abstraction has 15171 states and 41569 transitions. [2022-01-18 11:02:10,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:02:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15171 states and 41569 transitions. [2022-01-18 11:02:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:02:10,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:02:10,715 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:10,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 11:02:10,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-18 11:02:10,931 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:02:10,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:02:10,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2084699166, now seen corresponding path program 2 times [2022-01-18 11:02:10,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:02:10,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523930751] [2022-01-18 11:02:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:02:10,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:02:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:02:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:12,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:02:12,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523930751] [2022-01-18 11:02:12,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523930751] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:02:12,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874143693] [2022-01-18 11:02:12,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:02:12,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:02:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:02:12,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:02:12,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 11:02:12,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:02:12,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:02:12,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:02:12,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:02:13,118 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:02:13,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:02:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:13,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:02:17,439 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:02:17,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:02:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:02:17,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874143693] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:02:17,667 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:02:17,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 35, 30] total 96 [2022-01-18 11:02:17,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059797722] [2022-01-18 11:02:17,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:02:17,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 11:02:17,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:02:17,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 11:02:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=8725, Unknown=2, NotChecked=0, Total=9120 [2022-01-18 11:02:17,671 INFO L87 Difference]: Start difference. First operand 15171 states and 41569 transitions. Second operand has 96 states, 96 states have (on average 5.864583333333333) internal successors, (563), 96 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:20,767 INFO L93 Difference]: Finished difference Result 125723 states and 329917 transitions. [2022-01-18 11:04:20,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 798 states. [2022-01-18 11:04:20,767 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.864583333333333) internal successors, (563), 96 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:04:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:21,022 INFO L225 Difference]: With dead ends: 125723 [2022-01-18 11:04:21,023 INFO L226 Difference]: Without dead ends: 125097 [2022-01-18 11:04:21,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 938 SyntacticMatches, 44 SemanticMatches, 888 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349317 ImplicationChecksByTransitivity, 103.0s TimeCoverageRelationStatistics Valid=66085, Invalid=725123, Unknown=2, NotChecked=0, Total=791210 [2022-01-18 11:04:21,204 INFO L933 BasicCegarLoop]: 2815 mSDtfsCounter, 22999 mSDsluCounter, 151474 mSDsCounter, 0 mSdLazyCounter, 35433 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22999 SdHoareTripleChecker+Valid, 150314 SdHoareTripleChecker+Invalid, 45202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 35433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9294 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:21,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22999 Valid, 150314 Invalid, 45202 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [475 Valid, 35433 Invalid, 0 Unknown, 9294 Unchecked, 15.1s Time] [2022-01-18 11:04:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125097 states. [2022-01-18 11:04:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125097 to 15775. [2022-01-18 11:04:21,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15774 states have (on average 2.7178901990617472) internal successors, (42872), 15774 states have internal predecessors, (42872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 42872 transitions. [2022-01-18 11:04:21,980 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 42872 transitions. Word has length 283 [2022-01-18 11:04:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:21,980 INFO L470 AbstractCegarLoop]: Abstraction has 15775 states and 42872 transitions. [2022-01-18 11:04:21,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.864583333333333) internal successors, (563), 96 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 42872 transitions. [2022-01-18 11:04:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:04:22,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:22,001 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:22,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 11:04:22,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:04:22,204 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2013959458, now seen corresponding path program 3 times [2022-01-18 11:04:22,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:22,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018618083] [2022-01-18 11:04:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:22,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:23,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:23,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018618083] [2022-01-18 11:04:23,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018618083] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:04:23,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699816909] [2022-01-18 11:04:23,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:04:23,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:04:23,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:04:23,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:04:23,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 11:04:23,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:04:23,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:04:23,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:04:23,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:04:24,711 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:04:24,712 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:04:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:25,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:04:28,077 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:04:28,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:04:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:28,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699816909] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:04:28,252 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:04:28,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 93 [2022-01-18 11:04:28,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993550151] [2022-01-18 11:04:28,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:04:28,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-01-18 11:04:28,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-01-18 11:04:28,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=8174, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 11:04:28,254 INFO L87 Difference]: Start difference. First operand 15775 states and 42872 transitions. Second operand has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:38,717 INFO L93 Difference]: Finished difference Result 44711 states and 120606 transitions. [2022-01-18 11:04:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 11:04:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-01-18 11:04:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:38,782 INFO L225 Difference]: With dead ends: 44711 [2022-01-18 11:04:38,783 INFO L226 Difference]: Without dead ends: 44434 [2022-01-18 11:04:38,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 554 SyntacticMatches, 20 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6210 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=2362, Invalid=20288, Unknown=0, NotChecked=0, Total=22650 [2022-01-18 11:04:38,784 INFO L933 BasicCegarLoop]: 936 mSDtfsCounter, 7683 mSDsluCounter, 39473 mSDsCounter, 0 mSdLazyCounter, 9053 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7683 SdHoareTripleChecker+Valid, 39518 SdHoareTripleChecker+Invalid, 9872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 9053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 670 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:38,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7683 Valid, 39518 Invalid, 9872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 9053 Invalid, 0 Unknown, 670 Unchecked, 3.8s Time] [2022-01-18 11:04:38,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44434 states. [2022-01-18 11:04:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44434 to 17200. [2022-01-18 11:04:39,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17200 states, 17199 states have (on average 2.7236467236467234) internal successors, (46844), 17199 states have internal predecessors, (46844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17200 states to 17200 states and 46844 transitions. [2022-01-18 11:04:39,162 INFO L78 Accepts]: Start accepts. Automaton has 17200 states and 46844 transitions. Word has length 283 [2022-01-18 11:04:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:39,162 INFO L470 AbstractCegarLoop]: Abstraction has 17200 states and 46844 transitions. [2022-01-18 11:04:39,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 17200 states and 46844 transitions. [2022-01-18 11:04:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:04:39,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:39,185 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:39,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 11:04:39,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:04:39,386 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:39,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 451830562, now seen corresponding path program 4 times [2022-01-18 11:04:39,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:39,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516417081] [2022-01-18 11:04:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:39,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:40,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:40,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516417081] [2022-01-18 11:04:40,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516417081] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:04:40,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041389465] [2022-01-18 11:04:40,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:04:40,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:04:40,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:04:40,378 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:04:40,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 11:04:40,505 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:04:40,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:04:40,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-01-18 11:04:40,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:04:41,191 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:04:41,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:04:41,853 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:41,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:04:49,565 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:04:49,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:04:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:04:49,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041389465] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:04:49,737 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:04:49,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 31, 31] total 96 [2022-01-18 11:04:49,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318572119] [2022-01-18 11:04:49,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:04:49,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 11:04:49,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 11:04:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=8724, Unknown=7, NotChecked=0, Total=9120 [2022-01-18 11:04:49,739 INFO L87 Difference]: Start difference. First operand 17200 states and 46844 transitions. Second operand has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:59,904 INFO L93 Difference]: Finished difference Result 40328 states and 109223 transitions. [2022-01-18 11:04:59,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 11:04:59,905 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-01-18 11:04:59,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:59,969 INFO L225 Difference]: With dead ends: 40328 [2022-01-18 11:04:59,969 INFO L226 Difference]: Without dead ends: 40051 [2022-01-18 11:04:59,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 556 SyntacticMatches, 6 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6222 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2660, Invalid=22139, Unknown=7, NotChecked=0, Total=24806 [2022-01-18 11:04:59,971 INFO L933 BasicCegarLoop]: 945 mSDtfsCounter, 7921 mSDsluCounter, 40156 mSDsCounter, 0 mSdLazyCounter, 10142 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7921 SdHoareTripleChecker+Valid, 40128 SdHoareTripleChecker+Invalid, 10837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 10142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 545 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:59,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7921 Valid, 40128 Invalid, 10837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 10142 Invalid, 0 Unknown, 545 Unchecked, 4.2s Time] [2022-01-18 11:05:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40051 states. [2022-01-18 11:05:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40051 to 15805. [2022-01-18 11:05:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15805 states, 15804 states have (on average 2.718046064287522) internal successors, (42956), 15804 states have internal predecessors, (42956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15805 states to 15805 states and 42956 transitions. [2022-01-18 11:05:00,310 INFO L78 Accepts]: Start accepts. Automaton has 15805 states and 42956 transitions. Word has length 283 [2022-01-18 11:05:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:00,310 INFO L470 AbstractCegarLoop]: Abstraction has 15805 states and 42956 transitions. [2022-01-18 11:05:00,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 15805 states and 42956 transitions. [2022-01-18 11:05:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:05:00,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:00,328 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:00,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 11:05:00,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-01-18 11:05:00,529 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:00,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:00,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1897137352, now seen corresponding path program 5 times [2022-01-18 11:05:00,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:00,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245440136] [2022-01-18 11:05:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:00,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:01,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245440136] [2022-01-18 11:05:01,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245440136] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:05:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588771330] [2022-01-18 11:05:01,669 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:05:01,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:01,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:05:01,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:05:01,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 11:05:01,862 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-18 11:05:01,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:05:01,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:05:01,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:05:02,815 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:05:02,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:05:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:03,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:05:05,846 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:05:05,846 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:05:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:06,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588771330] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:05:06,033 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:05:06,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-01-18 11:05:06,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798081554] [2022-01-18 11:05:06,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:05:06,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-18 11:05:06,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:06,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-18 11:05:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=8546, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 11:05:06,035 INFO L87 Difference]: Start difference. First operand 15805 states and 42956 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:14,539 INFO L93 Difference]: Finished difference Result 38949 states and 105553 transitions. [2022-01-18 11:05:14,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:05:14,541 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:05:14,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:14,606 INFO L225 Difference]: With dead ends: 38949 [2022-01-18 11:05:14,606 INFO L226 Difference]: Without dead ends: 38823 [2022-01-18 11:05:14,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 550 SyntacticMatches, 5 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5009 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1964, Invalid=18628, Unknown=0, NotChecked=0, Total=20592 [2022-01-18 11:05:14,608 INFO L933 BasicCegarLoop]: 975 mSDtfsCounter, 6605 mSDsluCounter, 40453 mSDsCounter, 0 mSdLazyCounter, 8233 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6605 SdHoareTripleChecker+Valid, 40733 SdHoareTripleChecker+Invalid, 8633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 8233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 337 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:14,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6605 Valid, 40733 Invalid, 8633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 8233 Invalid, 0 Unknown, 337 Unchecked, 3.3s Time] [2022-01-18 11:05:14,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38823 states. [2022-01-18 11:05:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38823 to 16206. [2022-01-18 11:05:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16206 states, 16205 states have (on average 2.718420240666461) internal successors, (44052), 16205 states have internal predecessors, (44052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16206 states to 16206 states and 44052 transitions. [2022-01-18 11:05:15,012 INFO L78 Accepts]: Start accepts. Automaton has 16206 states and 44052 transitions. Word has length 283 [2022-01-18 11:05:15,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:15,012 INFO L470 AbstractCegarLoop]: Abstraction has 16206 states and 44052 transitions. [2022-01-18 11:05:15,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:15,012 INFO L276 IsEmpty]: Start isEmpty. Operand 16206 states and 44052 transitions. [2022-01-18 11:05:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:05:15,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:15,039 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:15,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 11:05:15,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-18 11:05:15,239 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1405196120, now seen corresponding path program 1 times [2022-01-18 11:05:15,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:15,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746894906] [2022-01-18 11:05:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:15,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:05:15,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:15,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746894906] [2022-01-18 11:05:15,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746894906] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:05:15,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584582777] [2022-01-18 11:05:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:15,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:15,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:05:15,299 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:05:15,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 11:05:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:15,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-18 11:05:15,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:05:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:05:15,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:05:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-01-18 11:05:16,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584582777] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:05:16,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:05:16,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-01-18 11:05:16,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364964089] [2022-01-18 11:05:16,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:05:16,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 11:05:16,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 11:05:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:05:16,117 INFO L87 Difference]: Start difference. First operand 16206 states and 44052 transitions. Second operand has 11 states, 11 states have (on average 28.09090909090909) internal successors, (309), 11 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:16,322 INFO L93 Difference]: Finished difference Result 33723 states and 92023 transitions. [2022-01-18 11:05:16,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 11:05:16,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 28.09090909090909) internal successors, (309), 11 states have internal predecessors, (309), 0 states have call successors, (0), 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 283 [2022-01-18 11:05:16,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:16,383 INFO L225 Difference]: With dead ends: 33723 [2022-01-18 11:05:16,383 INFO L226 Difference]: Without dead ends: 33703 [2022-01-18 11:05:16,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 565 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:05:16,387 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1043 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:16,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 2566 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:05:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33703 states. [2022-01-18 11:05:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33703 to 29140. [2022-01-18 11:05:16,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29140 states, 29139 states have (on average 2.7570609835615496) internal successors, (80338), 29139 states have internal predecessors, (80338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29140 states to 29140 states and 80338 transitions. [2022-01-18 11:05:16,892 INFO L78 Accepts]: Start accepts. Automaton has 29140 states and 80338 transitions. Word has length 283 [2022-01-18 11:05:16,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:16,892 INFO L470 AbstractCegarLoop]: Abstraction has 29140 states and 80338 transitions. [2022-01-18 11:05:16,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.09090909090909) internal successors, (309), 11 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 29140 states and 80338 transitions. [2022-01-18 11:05:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:05:16,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:16,931 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:16,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 11:05:17,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-18 11:05:17,134 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:17,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1114213930, now seen corresponding path program 6 times [2022-01-18 11:05:17,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:17,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861592636] [2022-01-18 11:05:17,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:17,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:18,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:18,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861592636] [2022-01-18 11:05:18,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861592636] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:05:18,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025871556] [2022-01-18 11:05:18,595 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:05:18,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:18,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:05:18,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:05:18,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 11:05:18,750 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:05:18,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:05:18,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:05:18,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:05:19,678 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:05:19,678 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:05:20,397 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:20,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:05:22,710 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:05:22,711 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:05:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:22,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025871556] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:05:22,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:05:22,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-01-18 11:05:22,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316052213] [2022-01-18 11:05:22,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:05:22,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-18 11:05:22,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-18 11:05:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=8929, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:05:22,889 INFO L87 Difference]: Start difference. First operand 29140 states and 80338 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:33,515 INFO L93 Difference]: Finished difference Result 79515 states and 218465 transitions. [2022-01-18 11:05:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 11:05:33,515 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:05:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:33,663 INFO L225 Difference]: With dead ends: 79515 [2022-01-18 11:05:33,663 INFO L226 Difference]: Without dead ends: 78876 [2022-01-18 11:05:33,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 562 SyntacticMatches, 3 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5915 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2225, Invalid=22267, Unknown=0, NotChecked=0, Total=24492 [2022-01-18 11:05:33,665 INFO L933 BasicCegarLoop]: 1026 mSDtfsCounter, 8480 mSDsluCounter, 47150 mSDsCounter, 0 mSdLazyCounter, 10804 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8480 SdHoareTripleChecker+Valid, 47372 SdHoareTripleChecker+Invalid, 11355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 10804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 435 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:33,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8480 Valid, 47372 Invalid, 11355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 10804 Invalid, 0 Unknown, 435 Unchecked, 4.4s Time] [2022-01-18 11:05:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78876 states. [2022-01-18 11:05:34,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78876 to 29147. [2022-01-18 11:05:34,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 29146 states have (on average 2.756844850065189) internal successors, (80351), 29146 states have internal predecessors, (80351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 80351 transitions. [2022-01-18 11:05:34,412 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 80351 transitions. Word has length 283 [2022-01-18 11:05:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:34,412 INFO L470 AbstractCegarLoop]: Abstraction has 29147 states and 80351 transitions. [2022-01-18 11:05:34,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 80351 transitions. [2022-01-18 11:05:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:05:34,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:34,447 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:34,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 11:05:34,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-01-18 11:05:34,648 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:34,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:34,649 INFO L85 PathProgramCache]: Analyzing trace with hash -339128410, now seen corresponding path program 7 times [2022-01-18 11:05:34,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:34,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652227988] [2022-01-18 11:05:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:34,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:35,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:35,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652227988] [2022-01-18 11:05:35,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652227988] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:05:35,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772804832] [2022-01-18 11:05:35,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:05:35,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:05:35,825 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:05:35,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 11:05:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:35,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:05:35,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:05:36,760 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:05:36,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:05:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:37,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:05:43,294 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:05:43,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:05:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:43,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772804832] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:05:43,500 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:05:43,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 36, 31] total 99 [2022-01-18 11:05:43,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230287562] [2022-01-18 11:05:43,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:05:43,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-01-18 11:05:43,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-01-18 11:05:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=9282, Unknown=5, NotChecked=0, Total=9702 [2022-01-18 11:05:43,502 INFO L87 Difference]: Start difference. First operand 29147 states and 80351 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:53,782 INFO L93 Difference]: Finished difference Result 79770 states and 219127 transitions. [2022-01-18 11:05:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-18 11:05:53,783 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:05:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:53,927 INFO L225 Difference]: With dead ends: 79770 [2022-01-18 11:05:53,928 INFO L226 Difference]: Without dead ends: 79625 [2022-01-18 11:05:53,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 570 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6968 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=2710, Invalid=25677, Unknown=5, NotChecked=0, Total=28392 [2022-01-18 11:05:53,930 INFO L933 BasicCegarLoop]: 1046 mSDtfsCounter, 9260 mSDsluCounter, 37378 mSDsCounter, 0 mSdLazyCounter, 7811 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9260 SdHoareTripleChecker+Valid, 37827 SdHoareTripleChecker+Invalid, 8175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 7811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 249 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:53,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9260 Valid, 37827 Invalid, 8175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 7811 Invalid, 0 Unknown, 249 Unchecked, 3.3s Time] [2022-01-18 11:05:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79625 states. [2022-01-18 11:05:54,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79625 to 29199. [2022-01-18 11:05:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29199 states, 29198 states have (on average 2.7568326597712174) internal successors, (80494), 29198 states have internal predecessors, (80494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29199 states to 29199 states and 80494 transitions. [2022-01-18 11:05:54,857 INFO L78 Accepts]: Start accepts. Automaton has 29199 states and 80494 transitions. Word has length 283 [2022-01-18 11:05:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:54,857 INFO L470 AbstractCegarLoop]: Abstraction has 29199 states and 80494 transitions. [2022-01-18 11:05:54,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 29199 states and 80494 transitions. [2022-01-18 11:05:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:05:54,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:54,893 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:54,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 11:05:55,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:55,094 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:55,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:55,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1770750512, now seen corresponding path program 8 times [2022-01-18 11:05:55,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:55,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306331594] [2022-01-18 11:05:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:55,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:56,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306331594] [2022-01-18 11:05:56,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306331594] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:05:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71461190] [2022-01-18 11:05:56,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:05:56,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:05:56,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:05:56,251 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:05:56,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 11:05:56,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:05:56,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:05:56,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:05:56,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:05:57,153 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:05:57,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:05:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:05:57,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:06:00,175 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:06:00,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:06:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:00,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71461190] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:06:00,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:06:00,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 36, 31] total 99 [2022-01-18 11:06:00,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288926344] [2022-01-18 11:06:00,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:06:00,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-01-18 11:06:00,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-01-18 11:06:00,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=9286, Unknown=0, NotChecked=0, Total=9702 [2022-01-18 11:06:00,361 INFO L87 Difference]: Start difference. First operand 29199 states and 80494 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:14,346 INFO L93 Difference]: Finished difference Result 78483 states and 215503 transitions. [2022-01-18 11:06:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 11:06:14,347 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:06:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:14,486 INFO L225 Difference]: With dead ends: 78483 [2022-01-18 11:06:14,486 INFO L226 Difference]: Without dead ends: 78242 [2022-01-18 11:06:14,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 553 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7815 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3718, Invalid=28502, Unknown=0, NotChecked=0, Total=32220 [2022-01-18 11:06:14,487 INFO L933 BasicCegarLoop]: 926 mSDtfsCounter, 8453 mSDsluCounter, 42121 mSDsCounter, 0 mSdLazyCounter, 8969 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8453 SdHoareTripleChecker+Valid, 42467 SdHoareTripleChecker+Invalid, 9557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 8969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 402 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:14,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8453 Valid, 42467 Invalid, 9557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [186 Valid, 8969 Invalid, 0 Unknown, 402 Unchecked, 3.7s Time] [2022-01-18 11:06:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78242 states. [2022-01-18 11:06:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78242 to 29223. [2022-01-18 11:06:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29223 states, 29222 states have (on average 2.756827048114434) internal successors, (80560), 29222 states have internal predecessors, (80560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29223 states to 29223 states and 80560 transitions. [2022-01-18 11:06:15,212 INFO L78 Accepts]: Start accepts. Automaton has 29223 states and 80560 transitions. Word has length 283 [2022-01-18 11:06:15,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:15,212 INFO L470 AbstractCegarLoop]: Abstraction has 29223 states and 80560 transitions. [2022-01-18 11:06:15,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 29223 states and 80560 transitions. [2022-01-18 11:06:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:06:15,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:15,248 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:15,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-01-18 11:06:15,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-01-18 11:06:15,451 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:15,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash -399210428, now seen corresponding path program 9 times [2022-01-18 11:06:15,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046108949] [2022-01-18 11:06:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:15,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:16,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046108949] [2022-01-18 11:06:16,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046108949] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:06:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689554826] [2022-01-18 11:06:16,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:06:16,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:06:16,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:06:16,594 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:06:16,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 11:06:16,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:06:16,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:06:16,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:06:16,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:06:17,661 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:06:17,662 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:06:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:18,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:06:21,168 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:06:21,168 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:06:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:21,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689554826] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:06:21,342 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:06:21,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 93 [2022-01-18 11:06:21,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488812813] [2022-01-18 11:06:21,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:06:21,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-01-18 11:06:21,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:21,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-01-18 11:06:21,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=8176, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 11:06:21,344 INFO L87 Difference]: Start difference. First operand 29223 states and 80560 transitions. Second operand has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:30,141 INFO L93 Difference]: Finished difference Result 79289 states and 217747 transitions. [2022-01-18 11:06:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:06:30,146 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-01-18 11:06:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:30,296 INFO L225 Difference]: With dead ends: 79289 [2022-01-18 11:06:30,296 INFO L226 Difference]: Without dead ends: 79172 [2022-01-18 11:06:30,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 559 SyntacticMatches, 3 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5536 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=2107, Invalid=19945, Unknown=0, NotChecked=0, Total=22052 [2022-01-18 11:06:30,297 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 7184 mSDsluCounter, 35706 mSDsCounter, 0 mSdLazyCounter, 7751 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7184 SdHoareTripleChecker+Valid, 35850 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 7751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:30,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7184 Valid, 35850 Invalid, 8035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 7751 Invalid, 0 Unknown, 210 Unchecked, 3.4s Time] [2022-01-18 11:06:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79172 states. [2022-01-18 11:06:31,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79172 to 29164. [2022-01-18 11:06:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29164 states, 29163 states have (on average 2.7564036621746735) internal successors, (80385), 29163 states have internal predecessors, (80385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29164 states to 29164 states and 80385 transitions. [2022-01-18 11:06:31,119 INFO L78 Accepts]: Start accepts. Automaton has 29164 states and 80385 transitions. Word has length 283 [2022-01-18 11:06:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:31,119 INFO L470 AbstractCegarLoop]: Abstraction has 29164 states and 80385 transitions. [2022-01-18 11:06:31,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 29164 states and 80385 transitions. [2022-01-18 11:06:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:06:31,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:31,161 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:31,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 11:06:31,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:06:31,362 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1208633770, now seen corresponding path program 10 times [2022-01-18 11:06:31,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:31,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795628704] [2022-01-18 11:06:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:31,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:32,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:32,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795628704] [2022-01-18 11:06:32,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795628704] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:06:32,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336846606] [2022-01-18 11:06:32,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:06:32,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:06:32,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:06:32,706 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:06:32,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 11:06:32,856 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:06:32,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:06:32,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-01-18 11:06:32,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:06:33,701 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:06:33,701 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:06:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:34,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:06:40,824 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:06:40,824 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:06:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:06:40,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336846606] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:06:40,984 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:06:40,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 31, 31] total 96 [2022-01-18 11:06:40,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472732538] [2022-01-18 11:06:40,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:06:40,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 11:06:40,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 11:06:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=8736, Unknown=4, NotChecked=0, Total=9120 [2022-01-18 11:06:40,986 INFO L87 Difference]: Start difference. First operand 29164 states and 80385 transitions. Second operand has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:41,616 INFO L93 Difference]: Finished difference Result 105026 states and 287443 transitions. [2022-01-18 11:07:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 313 states. [2022-01-18 11:07:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-01-18 11:07:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:41,818 INFO L225 Difference]: With dead ends: 105026 [2022-01-18 11:07:41,818 INFO L226 Difference]: Without dead ends: 104585 [2022-01-18 11:07:41,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 793 SyntacticMatches, 17 SemanticMatches, 403 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57624 ImplicationChecksByTransitivity, 55.2s TimeCoverageRelationStatistics Valid=17411, Invalid=146205, Unknown=4, NotChecked=0, Total=163620 [2022-01-18 11:07:41,826 INFO L933 BasicCegarLoop]: 1767 mSDtfsCounter, 15707 mSDsluCounter, 75938 mSDsCounter, 0 mSdLazyCounter, 21646 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15707 SdHoareTripleChecker+Valid, 76485 SdHoareTripleChecker+Invalid, 23461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 21646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1415 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:41,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15707 Valid, 76485 Invalid, 23461 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [400 Valid, 21646 Invalid, 0 Unknown, 1415 Unchecked, 10.0s Time] [2022-01-18 11:07:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104585 states. [2022-01-18 11:07:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104585 to 30389. [2022-01-18 11:07:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30389 states, 30388 states have (on average 2.764150322495722) internal successors, (83997), 30388 states have internal predecessors, (83997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30389 states to 30389 states and 83997 transitions. [2022-01-18 11:07:42,932 INFO L78 Accepts]: Start accepts. Automaton has 30389 states and 83997 transitions. Word has length 283 [2022-01-18 11:07:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:42,933 INFO L470 AbstractCegarLoop]: Abstraction has 30389 states and 83997 transitions. [2022-01-18 11:07:42,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 30389 states and 83997 transitions. [2022-01-18 11:07:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:07:42,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:42,969 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:42,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 11:07:43,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:07:43,170 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1592504256, now seen corresponding path program 11 times [2022-01-18 11:07:43,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:43,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606528103] [2022-01-18 11:07:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:43,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:44,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:44,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606528103] [2022-01-18 11:07:44,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606528103] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:07:44,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951395470] [2022-01-18 11:07:44,259 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:07:44,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:07:44,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:07:44,260 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:07:44,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 11:07:44,434 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-18 11:07:44,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:07:44,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:07:44,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:07:45,359 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:07:45,359 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:07:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:46,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:07:48,792 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:07:48,793 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:07:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:07:48,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951395470] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:07:48,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:07:48,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 93 [2022-01-18 11:07:48,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971638607] [2022-01-18 11:07:48,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:07:48,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-01-18 11:07:48,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-01-18 11:07:48,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=8175, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 11:07:48,991 INFO L87 Difference]: Start difference. First operand 30389 states and 83997 transitions. Second operand has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:02,636 INFO L93 Difference]: Finished difference Result 85587 states and 234525 transitions. [2022-01-18 11:08:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-01-18 11:08:02,637 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-01-18 11:08:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:02,803 INFO L225 Difference]: With dead ends: 85587 [2022-01-18 11:08:02,804 INFO L226 Difference]: Without dead ends: 85325 [2022-01-18 11:08:02,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 578 SyntacticMatches, 7 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7972 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=3544, Invalid=27256, Unknown=0, NotChecked=0, Total=30800 [2022-01-18 11:08:02,806 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 7777 mSDsluCounter, 44605 mSDsCounter, 0 mSdLazyCounter, 11276 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7777 SdHoareTripleChecker+Valid, 44735 SdHoareTripleChecker+Invalid, 12106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 11276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 745 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:02,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7777 Valid, 44735 Invalid, 12106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 11276 Invalid, 0 Unknown, 745 Unchecked, 4.8s Time] [2022-01-18 11:08:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85325 states. [2022-01-18 11:08:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85325 to 30409. [2022-01-18 11:08:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30409 states, 30408 states have (on average 2.764141015522231) internal successors, (84052), 30408 states have internal predecessors, (84052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30409 states to 30409 states and 84052 transitions. [2022-01-18 11:08:03,700 INFO L78 Accepts]: Start accepts. Automaton has 30409 states and 84052 transitions. Word has length 283 [2022-01-18 11:08:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:03,700 INFO L470 AbstractCegarLoop]: Abstraction has 30409 states and 84052 transitions. [2022-01-18 11:08:03,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 30409 states and 84052 transitions. [2022-01-18 11:08:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:08:03,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:03,738 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:03,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 11:08:03,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-01-18 11:08:03,939 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1919539618, now seen corresponding path program 12 times [2022-01-18 11:08:03,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:03,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586815151] [2022-01-18 11:08:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:03,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:05,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:05,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586815151] [2022-01-18 11:08:05,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586815151] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:08:05,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4970989] [2022-01-18 11:08:05,312 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:08:05,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:08:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:08:05,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:08:05,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 11:08:05,483 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:08:05,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:08:05,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:08:05,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:08:06,460 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:08:06,460 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:08:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:07,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:08:12,581 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:08:12,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:08:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:12,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4970989] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:08:12,754 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:08:12,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-01-18 11:08:12,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193963225] [2022-01-18 11:08:12,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:08:12,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-18 11:08:12,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:12,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-18 11:08:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=8923, Unknown=4, NotChecked=0, Total=9312 [2022-01-18 11:08:12,756 INFO L87 Difference]: Start difference. First operand 30409 states and 84052 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:26,197 INFO L93 Difference]: Finished difference Result 86696 states and 237649 transitions. [2022-01-18 11:08:26,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 11:08:26,197 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:08:26,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:26,466 INFO L225 Difference]: With dead ends: 86696 [2022-01-18 11:08:26,466 INFO L226 Difference]: Without dead ends: 86057 [2022-01-18 11:08:26,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 579 SyntacticMatches, 4 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7446 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2875, Invalid=27223, Unknown=4, NotChecked=0, Total=30102 [2022-01-18 11:08:26,467 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 10635 mSDsluCounter, 48891 mSDsCounter, 0 mSdLazyCounter, 12255 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10635 SdHoareTripleChecker+Valid, 49121 SdHoareTripleChecker+Invalid, 12939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 12255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 583 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:26,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10635 Valid, 49121 Invalid, 12939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 12255 Invalid, 0 Unknown, 583 Unchecked, 5.2s Time] [2022-01-18 11:08:26,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86057 states. [2022-01-18 11:08:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86057 to 30413. [2022-01-18 11:08:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30413 states, 30412 states have (on average 2.7640076285676707) internal successors, (84059), 30412 states have internal predecessors, (84059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30413 states to 30413 states and 84059 transitions. [2022-01-18 11:08:27,279 INFO L78 Accepts]: Start accepts. Automaton has 30413 states and 84059 transitions. Word has length 283 [2022-01-18 11:08:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:27,279 INFO L470 AbstractCegarLoop]: Abstraction has 30413 states and 84059 transitions. [2022-01-18 11:08:27,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 30413 states and 84059 transitions. [2022-01-18 11:08:27,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:08:27,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:27,315 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:27,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 11:08:27,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:08:27,516 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 466197278, now seen corresponding path program 13 times [2022-01-18 11:08:27,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:27,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532683714] [2022-01-18 11:08:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:27,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:28,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:28,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532683714] [2022-01-18 11:08:28,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532683714] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:08:28,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848460015] [2022-01-18 11:08:28,619 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:08:28,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:08:28,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:08:28,620 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:08:28,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 11:08:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:28,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:08:28,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:08:29,687 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:08:29,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:08:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:30,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:08:33,335 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:08:33,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:08:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:33,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848460015] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:08:33,523 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:08:33,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 93 [2022-01-18 11:08:33,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118499504] [2022-01-18 11:08:33,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:08:33,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-01-18 11:08:33,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:33,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-01-18 11:08:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=8175, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 11:08:33,525 INFO L87 Difference]: Start difference. First operand 30413 states and 84059 transitions. Second operand has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:42,719 INFO L93 Difference]: Finished difference Result 83582 states and 229822 transitions. [2022-01-18 11:08:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 11:08:42,720 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-01-18 11:08:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:42,894 INFO L225 Difference]: With dead ends: 83582 [2022-01-18 11:08:42,895 INFO L226 Difference]: Without dead ends: 83437 [2022-01-18 11:08:42,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 731 GetRequests, 570 SyntacticMatches, 3 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6485 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=2419, Invalid=23021, Unknown=0, NotChecked=0, Total=25440 [2022-01-18 11:08:42,896 INFO L933 BasicCegarLoop]: 933 mSDtfsCounter, 8424 mSDsluCounter, 32694 mSDsCounter, 0 mSdLazyCounter, 7606 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8424 SdHoareTripleChecker+Valid, 32996 SdHoareTripleChecker+Invalid, 8235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 7606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 552 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:42,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8424 Valid, 32996 Invalid, 8235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 7606 Invalid, 0 Unknown, 552 Unchecked, 3.3s Time] [2022-01-18 11:08:43,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83437 states. [2022-01-18 11:08:43,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83437 to 30465. [2022-01-18 11:08:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30465 states, 30464 states have (on average 2.763983718487395) internal successors, (84202), 30464 states have internal predecessors, (84202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30465 states to 30465 states and 84202 transitions. [2022-01-18 11:08:43,707 INFO L78 Accepts]: Start accepts. Automaton has 30465 states and 84202 transitions. Word has length 283 [2022-01-18 11:08:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:43,707 INFO L470 AbstractCegarLoop]: Abstraction has 30465 states and 84202 transitions. [2022-01-18 11:08:43,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 30465 states and 84202 transitions. [2022-01-18 11:08:43,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:08:43,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:43,744 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:43,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 11:08:43,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:08:43,945 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -965424824, now seen corresponding path program 14 times [2022-01-18 11:08:43,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356438664] [2022-01-18 11:08:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:43,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:45,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:45,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356438664] [2022-01-18 11:08:45,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356438664] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:08:45,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477706214] [2022-01-18 11:08:45,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:08:45,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:08:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:08:45,043 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:08:45,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 11:08:45,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:08:45,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:08:45,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:08:45,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:08:45,984 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:08:45,984 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:08:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:46,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:08:51,022 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:08:51,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:08:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:08:51,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477706214] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:08:51,206 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:08:51,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 31] total 100 [2022-01-18 11:08:51,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675106021] [2022-01-18 11:08:51,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:08:51,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-01-18 11:08:51,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-01-18 11:08:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=9466, Unknown=3, NotChecked=0, Total=9900 [2022-01-18 11:08:51,208 INFO L87 Difference]: Start difference. First operand 30465 states and 84202 transitions. Second operand has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:01,761 INFO L93 Difference]: Finished difference Result 83457 states and 229556 transitions. [2022-01-18 11:09:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 11:09:01,762 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:09:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:01,952 INFO L225 Difference]: With dead ends: 83457 [2022-01-18 11:09:01,953 INFO L226 Difference]: Without dead ends: 83312 [2022-01-18 11:09:01,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 579 SyntacticMatches, 1 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8618 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=3217, Invalid=29360, Unknown=3, NotChecked=0, Total=32580 [2022-01-18 11:09:01,955 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 8570 mSDsluCounter, 36764 mSDsCounter, 0 mSdLazyCounter, 8677 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8570 SdHoareTripleChecker+Valid, 37034 SdHoareTripleChecker+Invalid, 8987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 8677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 202 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:01,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8570 Valid, 37034 Invalid, 8987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 8677 Invalid, 0 Unknown, 202 Unchecked, 3.6s Time] [2022-01-18 11:09:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83312 states. [2022-01-18 11:09:02,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83312 to 30489. [2022-01-18 11:09:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30489 states, 30488 states have (on average 2.763447913933351) internal successors, (84252), 30488 states have internal predecessors, (84252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30489 states to 30489 states and 84252 transitions. [2022-01-18 11:09:02,699 INFO L78 Accepts]: Start accepts. Automaton has 30489 states and 84252 transitions. Word has length 283 [2022-01-18 11:09:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:02,699 INFO L470 AbstractCegarLoop]: Abstraction has 30489 states and 84252 transitions. [2022-01-18 11:09:02,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 30489 states and 84252 transitions. [2022-01-18 11:09:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:09:02,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:02,735 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:02,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 11:09:02,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:02,936 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 374893634, now seen corresponding path program 15 times [2022-01-18 11:09:02,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:02,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474671604] [2022-01-18 11:09:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:02,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:04,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:04,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474671604] [2022-01-18 11:09:04,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474671604] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:09:04,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878365080] [2022-01-18 11:09:04,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:09:04,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:04,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:09:04,336 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:09:04,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 11:09:04,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:09:04,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:09:04,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:09:04,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:09:05,462 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:09:05,462 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:09:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:06,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:09:08,603 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:09:08,603 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:09:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:08,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878365080] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:09:08,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:09:08,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-01-18 11:09:08,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078396320] [2022-01-18 11:09:08,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:09:08,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-18 11:09:08,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-18 11:09:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=8930, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:09:08,781 INFO L87 Difference]: Start difference. First operand 30489 states and 84252 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:21,901 INFO L93 Difference]: Finished difference Result 82873 states and 228167 transitions. [2022-01-18 11:09:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 11:09:21,902 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:09:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:22,056 INFO L225 Difference]: With dead ends: 82873 [2022-01-18 11:09:22,056 INFO L226 Difference]: Without dead ends: 82310 [2022-01-18 11:09:22,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 563 SyntacticMatches, 12 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6471 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2708, Invalid=23052, Unknown=0, NotChecked=0, Total=25760 [2022-01-18 11:09:22,058 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 8439 mSDsluCounter, 46386 mSDsCounter, 0 mSdLazyCounter, 10933 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8439 SdHoareTripleChecker+Valid, 46645 SdHoareTripleChecker+Invalid, 12154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 10933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1148 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:22,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8439 Valid, 46645 Invalid, 12154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [73 Valid, 10933 Invalid, 0 Unknown, 1148 Unchecked, 4.5s Time] [2022-01-18 11:09:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82310 states. [2022-01-18 11:09:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82310 to 30620. [2022-01-18 11:09:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30620 states, 30619 states have (on average 2.7627943433815605) internal successors, (84594), 30619 states have internal predecessors, (84594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30620 states to 30620 states and 84594 transitions. [2022-01-18 11:09:22,839 INFO L78 Accepts]: Start accepts. Automaton has 30620 states and 84594 transitions. Word has length 283 [2022-01-18 11:09:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:22,840 INFO L470 AbstractCegarLoop]: Abstraction has 30620 states and 84594 transitions. [2022-01-18 11:09:22,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 30620 states and 84594 transitions. [2022-01-18 11:09:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:09:22,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:22,878 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:22,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 11:09:23,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-01-18 11:09:23,079 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 777302134, now seen corresponding path program 16 times [2022-01-18 11:09:23,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:23,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661145818] [2022-01-18 11:09:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:23,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:24,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:24,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661145818] [2022-01-18 11:09:24,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661145818] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:09:24,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788450039] [2022-01-18 11:09:24,023 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:09:24,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:24,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:09:24,024 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:09:24,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 11:09:24,181 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:09:24,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:09:24,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-01-18 11:09:24,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:09:24,810 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:09:24,811 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:09:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:25,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:09:32,636 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:09:32,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:09:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:32,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788450039] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:09:32,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:09:32,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 31, 31] total 96 [2022-01-18 11:09:32,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065680539] [2022-01-18 11:09:32,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:09:32,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 11:09:32,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 11:09:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=8732, Unknown=6, NotChecked=0, Total=9120 [2022-01-18 11:09:32,821 INFO L87 Difference]: Start difference. First operand 30620 states and 84594 transitions. Second operand has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:43,955 INFO L93 Difference]: Finished difference Result 83661 states and 230011 transitions. [2022-01-18 11:09:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-18 11:09:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-01-18 11:09:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:44,091 INFO L225 Difference]: With dead ends: 83661 [2022-01-18 11:09:44,091 INFO L226 Difference]: Without dead ends: 83365 [2022-01-18 11:09:44,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 586 SyntacticMatches, 4 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9026 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=3666, Invalid=33000, Unknown=6, NotChecked=0, Total=36672 [2022-01-18 11:09:44,093 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 9195 mSDsluCounter, 33026 mSDsCounter, 0 mSdLazyCounter, 7851 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9195 SdHoareTripleChecker+Valid, 33404 SdHoareTripleChecker+Invalid, 8250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 7851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:44,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9195 Valid, 33404 Invalid, 8250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [173 Valid, 7851 Invalid, 0 Unknown, 226 Unchecked, 3.3s Time] [2022-01-18 11:09:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83365 states. [2022-01-18 11:09:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83365 to 30639. [2022-01-18 11:09:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30639 states, 30638 states have (on average 2.7621581043149033) internal successors, (84627), 30638 states have internal predecessors, (84627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30639 states to 30639 states and 84627 transitions. [2022-01-18 11:09:44,825 INFO L78 Accepts]: Start accepts. Automaton has 30639 states and 84627 transitions. Word has length 283 [2022-01-18 11:09:44,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:44,825 INFO L470 AbstractCegarLoop]: Abstraction has 30639 states and 84627 transitions. [2022-01-18 11:09:44,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,825 INFO L276 IsEmpty]: Start isEmpty. Operand 30639 states and 84627 transitions. [2022-01-18 11:09:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:09:44,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:44,866 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:44,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 11:09:45,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:45,067 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1983601072, now seen corresponding path program 17 times [2022-01-18 11:09:45,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:45,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136460407] [2022-01-18 11:09:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:45,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:46,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:46,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136460407] [2022-01-18 11:09:46,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136460407] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:09:46,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36912068] [2022-01-18 11:09:46,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:09:46,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:09:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:09:46,197 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:09:46,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 11:09:46,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-18 11:09:46,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:09:46,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:09:46,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:09:47,357 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:09:47,357 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:09:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:48,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:09:51,823 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:09:51,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:09:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:09:52,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36912068] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:09:52,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:09:52,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 96 [2022-01-18 11:09:52,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610783711] [2022-01-18 11:09:52,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:09:52,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 11:09:52,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 11:09:52,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=8732, Unknown=2, NotChecked=0, Total=9120 [2022-01-18 11:09:52,033 INFO L87 Difference]: Start difference. First operand 30639 states and 84627 transitions. Second operand has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:03,169 INFO L93 Difference]: Finished difference Result 83163 states and 228668 transitions. [2022-01-18 11:10:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 11:10:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:10:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:03,333 INFO L225 Difference]: With dead ends: 83163 [2022-01-18 11:10:03,334 INFO L226 Difference]: Without dead ends: 83059 [2022-01-18 11:10:03,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6937 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=2710, Invalid=25680, Unknown=2, NotChecked=0, Total=28392 [2022-01-18 11:10:03,336 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 7666 mSDsluCounter, 47191 mSDsCounter, 0 mSdLazyCounter, 11008 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7666 SdHoareTripleChecker+Valid, 47449 SdHoareTripleChecker+Invalid, 11926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 11008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 815 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:03,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7666 Valid, 47449 Invalid, 11926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 11008 Invalid, 0 Unknown, 815 Unchecked, 4.5s Time] [2022-01-18 11:10:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83059 states. [2022-01-18 11:10:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83059 to 30659. [2022-01-18 11:10:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30659 states, 30658 states have (on average 2.761628286254811) internal successors, (84666), 30658 states have internal predecessors, (84666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30659 states to 30659 states and 84666 transitions. [2022-01-18 11:10:04,332 INFO L78 Accepts]: Start accepts. Automaton has 30659 states and 84666 transitions. Word has length 283 [2022-01-18 11:10:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:04,332 INFO L470 AbstractCegarLoop]: Abstraction has 30659 states and 84666 transitions. [2022-01-18 11:10:04,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 30659 states and 84666 transitions. [2022-01-18 11:10:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:10:04,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:04,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:04,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 11:10:04,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:04,570 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:04,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:04,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1642090800, now seen corresponding path program 18 times [2022-01-18 11:10:04,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:04,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903432521] [2022-01-18 11:10:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:04,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:05,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:05,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903432521] [2022-01-18 11:10:05,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903432521] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:10:05,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109170267] [2022-01-18 11:10:05,625 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:10:05,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:05,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:10:05,626 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:10:05,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-01-18 11:10:05,801 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:10:05,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:10:05,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:10:05,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:10:06,697 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:10:06,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:10:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:07,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:10:10,874 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:10:10,875 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:10:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:11,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109170267] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:10:11,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:10:11,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42, 32] total 95 [2022-01-18 11:10:11,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609817695] [2022-01-18 11:10:11,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:10:11,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-18 11:10:11,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:11,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-18 11:10:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=8547, Unknown=1, NotChecked=0, Total=8930 [2022-01-18 11:10:11,059 INFO L87 Difference]: Start difference. First operand 30659 states and 84666 transitions. Second operand has 95 states, 95 states have (on average 5.294736842105263) internal successors, (503), 95 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:23,869 INFO L93 Difference]: Finished difference Result 83460 states and 229452 transitions. [2022-01-18 11:10:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 11:10:23,869 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.294736842105263) internal successors, (503), 95 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-01-18 11:10:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:24,087 INFO L225 Difference]: With dead ends: 83460 [2022-01-18 11:10:24,087 INFO L226 Difference]: Without dead ends: 83287 [2022-01-18 11:10:24,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 581 SyntacticMatches, 3 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8605 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=3443, Invalid=31338, Unknown=1, NotChecked=0, Total=34782 [2022-01-18 11:10:24,089 INFO L933 BasicCegarLoop]: 933 mSDtfsCounter, 8299 mSDsluCounter, 38663 mSDsCounter, 0 mSdLazyCounter, 9203 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8299 SdHoareTripleChecker+Valid, 39019 SdHoareTripleChecker+Invalid, 9811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 9203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 453 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:24,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8299 Valid, 39019 Invalid, 9811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [155 Valid, 9203 Invalid, 0 Unknown, 453 Unchecked, 4.0s Time] [2022-01-18 11:10:24,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83287 states. [2022-01-18 11:10:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83287 to 30620. [2022-01-18 11:10:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30620 states, 30619 states have (on average 2.76266370554231) internal successors, (84590), 30619 states have internal predecessors, (84590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30620 states to 30620 states and 84590 transitions. [2022-01-18 11:10:24,831 INFO L78 Accepts]: Start accepts. Automaton has 30620 states and 84590 transitions. Word has length 283 [2022-01-18 11:10:24,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:24,831 INFO L470 AbstractCegarLoop]: Abstraction has 30620 states and 84590 transitions. [2022-01-18 11:10:24,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.294736842105263) internal successors, (503), 95 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 30620 states and 84590 transitions. [2022-01-18 11:10:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:10:24,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:24,871 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:24,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-01-18 11:10:25,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:25,072 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash 406115260, now seen corresponding path program 19 times [2022-01-18 11:10:25,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:25,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588050909] [2022-01-18 11:10:25,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:25,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:26,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:26,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588050909] [2022-01-18 11:10:26,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588050909] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:10:26,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273589226] [2022-01-18 11:10:26,454 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:10:26,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:26,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:10:26,455 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:10:26,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-01-18 11:10:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:26,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:10:26,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:10:27,744 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:10:27,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:10:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:28,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:10:32,112 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:10:32,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:10:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:32,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273589226] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:10:32,296 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:10:32,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 41, 31] total 98 [2022-01-18 11:10:32,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973785247] [2022-01-18 11:10:32,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:10:32,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-01-18 11:10:32,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-01-18 11:10:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=9093, Unknown=2, NotChecked=0, Total=9506 [2022-01-18 11:10:32,298 INFO L87 Difference]: Start difference. First operand 30620 states and 84590 transitions. Second operand has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:44,093 INFO L93 Difference]: Finished difference Result 84173 states and 231041 transitions. [2022-01-18 11:10:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 11:10:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:10:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:44,266 INFO L225 Difference]: With dead ends: 84173 [2022-01-18 11:10:44,266 INFO L226 Difference]: Without dead ends: 82932 [2022-01-18 11:10:44,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 555 SyntacticMatches, 7 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6438 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=2423, Invalid=22067, Unknown=2, NotChecked=0, Total=24492 [2022-01-18 11:10:44,268 INFO L933 BasicCegarLoop]: 1011 mSDtfsCounter, 7242 mSDsluCounter, 48820 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7242 SdHoareTripleChecker+Valid, 48945 SdHoareTripleChecker+Invalid, 11953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 513 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:44,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7242 Valid, 48945 Invalid, 11953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 11375 Invalid, 0 Unknown, 513 Unchecked, 4.8s Time] [2022-01-18 11:10:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82932 states. [2022-01-18 11:10:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82932 to 30711. [2022-01-18 11:10:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30711 states, 30710 states have (on average 2.7598176489742756) internal successors, (84754), 30710 states have internal predecessors, (84754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:45,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30711 states to 30711 states and 84754 transitions. [2022-01-18 11:10:45,077 INFO L78 Accepts]: Start accepts. Automaton has 30711 states and 84754 transitions. Word has length 283 [2022-01-18 11:10:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:45,077 INFO L470 AbstractCegarLoop]: Abstraction has 30711 states and 84754 transitions. [2022-01-18 11:10:45,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 30711 states and 84754 transitions. [2022-01-18 11:10:45,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:10:45,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:45,115 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:45,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-01-18 11:10:45,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:45,316 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:45,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1870527642, now seen corresponding path program 20 times [2022-01-18 11:10:45,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993301468] [2022-01-18 11:10:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:45,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:46,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:46,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993301468] [2022-01-18 11:10:46,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993301468] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:10:46,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178824694] [2022-01-18 11:10:46,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:10:46,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:10:46,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:10:46,753 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:10:46,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-01-18 11:10:46,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:10:46,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:10:46,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:10:46,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:10:47,730 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:10:47,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:10:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:48,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:10:52,274 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:10:52,275 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:10:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:10:52,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178824694] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:10:52,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:10:52,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 36, 31] total 101 [2022-01-18 11:10:52,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80193025] [2022-01-18 11:10:52,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:10:52,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-01-18 11:10:52,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-01-18 11:10:52,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=9683, Unknown=2, NotChecked=0, Total=10100 [2022-01-18 11:10:52,472 INFO L87 Difference]: Start difference. First operand 30711 states and 84754 transitions. Second operand has 101 states, 101 states have (on average 5.574257425742574) internal successors, (563), 101 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:06,823 INFO L93 Difference]: Finished difference Result 106718 states and 296304 transitions. [2022-01-18 11:11:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-18 11:11:06,824 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 5.574257425742574) internal successors, (563), 101 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:11:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:07,052 INFO L225 Difference]: With dead ends: 106718 [2022-01-18 11:11:07,052 INFO L226 Difference]: Without dead ends: 106022 [2022-01-18 11:11:07,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 593 SyntacticMatches, 6 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9417 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=3650, Invalid=32638, Unknown=2, NotChecked=0, Total=36290 [2022-01-18 11:11:07,054 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 11222 mSDsluCounter, 49930 mSDsCounter, 0 mSdLazyCounter, 11168 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11222 SdHoareTripleChecker+Valid, 50219 SdHoareTripleChecker+Invalid, 12911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 11168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1665 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:07,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11222 Valid, 50219 Invalid, 12911 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 11168 Invalid, 0 Unknown, 1665 Unchecked, 4.8s Time] [2022-01-18 11:11:07,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106022 states. [2022-01-18 11:11:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106022 to 30755. [2022-01-18 11:11:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30755 states, 30754 states have (on average 2.7596735384015085) internal successors, (84871), 30754 states have internal predecessors, (84871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30755 states to 30755 states and 84871 transitions. [2022-01-18 11:11:08,117 INFO L78 Accepts]: Start accepts. Automaton has 30755 states and 84871 transitions. Word has length 283 [2022-01-18 11:11:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:08,117 INFO L470 AbstractCegarLoop]: Abstraction has 30755 states and 84871 transitions. [2022-01-18 11:11:08,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 5.574257425742574) internal successors, (563), 101 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 30755 states and 84871 transitions. [2022-01-18 11:11:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:11:08,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:08,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:08,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-01-18 11:11:08,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-01-18 11:11:08,358 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:08,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1087604220, now seen corresponding path program 21 times [2022-01-18 11:11:08,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:08,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381876351] [2022-01-18 11:11:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:08,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:09,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:09,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381876351] [2022-01-18 11:11:09,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381876351] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:11:09,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062404111] [2022-01-18 11:11:09,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:11:09,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:11:09,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:11:09,764 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:11:09,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-01-18 11:11:09,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:11:09,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:11:09,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:11:09,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:11:10,917 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:11:10,917 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:11:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:11,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:11:16,254 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:11:16,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:11:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:16,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062404111] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:11:16,467 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:11:16,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 41, 31] total 98 [2022-01-18 11:11:16,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326723836] [2022-01-18 11:11:16,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:11:16,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-01-18 11:11:16,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-01-18 11:11:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=9114, Unknown=3, NotChecked=0, Total=9506 [2022-01-18 11:11:16,468 INFO L87 Difference]: Start difference. First operand 30755 states and 84871 transitions. Second operand has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:30,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:30,201 INFO L93 Difference]: Finished difference Result 103114 states and 285314 transitions. [2022-01-18 11:11:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-01-18 11:11:30,202 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:11:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:30,409 INFO L225 Difference]: With dead ends: 103114 [2022-01-18 11:11:30,409 INFO L226 Difference]: Without dead ends: 102475 [2022-01-18 11:11:30,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 597 SyntacticMatches, 2 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8611 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=3208, Invalid=31199, Unknown=3, NotChecked=0, Total=34410 [2022-01-18 11:11:30,412 INFO L933 BasicCegarLoop]: 1011 mSDtfsCounter, 10578 mSDsluCounter, 48594 mSDsCounter, 0 mSdLazyCounter, 11491 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10578 SdHoareTripleChecker+Valid, 48808 SdHoareTripleChecker+Invalid, 13164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 11491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1583 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:30,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10578 Valid, 48808 Invalid, 13164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [90 Valid, 11491 Invalid, 0 Unknown, 1583 Unchecked, 4.9s Time] [2022-01-18 11:11:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102475 states. [2022-01-18 11:11:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102475 to 30794. [2022-01-18 11:11:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30794 states, 30793 states have (on average 2.758971194752054) internal successors, (84957), 30793 states have internal predecessors, (84957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30794 states to 30794 states and 84957 transitions. [2022-01-18 11:11:31,350 INFO L78 Accepts]: Start accepts. Automaton has 30794 states and 84957 transitions. Word has length 283 [2022-01-18 11:11:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:31,351 INFO L470 AbstractCegarLoop]: Abstraction has 30794 states and 84957 transitions. [2022-01-18 11:11:31,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.255102040816326) internal successors, (515), 98 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 30794 states and 84957 transitions. [2022-01-18 11:11:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:11:31,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:31,390 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:31,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-01-18 11:11:31,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-01-18 11:11:31,591 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:31,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash -365738120, now seen corresponding path program 22 times [2022-01-18 11:11:31,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:31,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496176526] [2022-01-18 11:11:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:31,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:32,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496176526] [2022-01-18 11:11:32,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496176526] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:11:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996094743] [2022-01-18 11:11:32,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:11:32,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:11:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:11:32,785 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:11:32,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-01-18 11:11:32,968 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:11:32,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:11:32,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-01-18 11:11:32,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:11:33,588 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:11:33,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:11:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:34,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:11:40,238 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:11:40,238 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:11:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:40,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996094743] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:11:40,402 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:11:40,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 31, 31] total 97 [2022-01-18 11:11:40,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565755724] [2022-01-18 11:11:40,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:11:40,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-18 11:11:40,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:40,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-18 11:11:40,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=8922, Unknown=3, NotChecked=0, Total=9312 [2022-01-18 11:11:40,404 INFO L87 Difference]: Start difference. First operand 30794 states and 84957 transitions. Second operand has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:53,131 INFO L93 Difference]: Finished difference Result 83151 states and 228647 transitions. [2022-01-18 11:11:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 11:11:53,132 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-01-18 11:11:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:53,275 INFO L225 Difference]: With dead ends: 83151 [2022-01-18 11:11:53,275 INFO L226 Difference]: Without dead ends: 82845 [2022-01-18 11:11:53,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 578 SyntacticMatches, 4 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8234 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=3582, Invalid=29357, Unknown=3, NotChecked=0, Total=32942 [2022-01-18 11:11:53,276 INFO L933 BasicCegarLoop]: 936 mSDtfsCounter, 9567 mSDsluCounter, 40278 mSDsCounter, 0 mSdLazyCounter, 9108 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9567 SdHoareTripleChecker+Valid, 40264 SdHoareTripleChecker+Invalid, 10355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 9108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1119 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:53,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9567 Valid, 40264 Invalid, 10355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 9108 Invalid, 0 Unknown, 1119 Unchecked, 3.8s Time] [2022-01-18 11:11:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82845 states. [2022-01-18 11:11:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82845 to 31197. [2022-01-18 11:11:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31197 states, 31196 states have (on average 2.7589755096807282) internal successors, (86069), 31196 states have internal predecessors, (86069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31197 states to 31197 states and 86069 transitions. [2022-01-18 11:11:54,018 INFO L78 Accepts]: Start accepts. Automaton has 31197 states and 86069 transitions. Word has length 283 [2022-01-18 11:11:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:54,019 INFO L470 AbstractCegarLoop]: Abstraction has 31197 states and 86069 transitions. [2022-01-18 11:11:54,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 31197 states and 86069 transitions. [2022-01-18 11:11:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:11:54,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:54,054 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:54,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-01-18 11:11:54,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-01-18 11:11:54,254 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1797360222, now seen corresponding path program 23 times [2022-01-18 11:11:54,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427448944] [2022-01-18 11:11:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:54,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:55,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:55,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427448944] [2022-01-18 11:11:55,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427448944] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:11:55,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010820159] [2022-01-18 11:11:55,353 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:11:55,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:11:55,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:11:55,354 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:11:55,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-01-18 11:11:55,583 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-18 11:11:55,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:11:55,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:11:55,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:11:56,524 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:11:56,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:11:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:11:57,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:12:00,514 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:12:00,515 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-01-18 11:12:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:00,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010820159] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:12:00,695 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:12:00,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 94 [2022-01-18 11:12:00,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464619195] [2022-01-18 11:12:00,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:12:00,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-01-18 11:12:00,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-01-18 11:12:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=8357, Unknown=1, NotChecked=0, Total=8742 [2022-01-18 11:12:00,697 INFO L87 Difference]: Start difference. First operand 31197 states and 86069 transitions. Second operand has 94 states, 94 states have (on average 5.361702127659575) internal successors, (504), 94 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:12,503 INFO L93 Difference]: Finished difference Result 108361 states and 300218 transitions. [2022-01-18 11:12:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 11:12:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 5.361702127659575) internal successors, (504), 94 states have internal predecessors, (504), 0 states have call successors, (0), 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 283 [2022-01-18 11:12:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:12,721 INFO L225 Difference]: With dead ends: 108361 [2022-01-18 11:12:12,721 INFO L226 Difference]: Without dead ends: 108216 [2022-01-18 11:12:12,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 599 SyntacticMatches, 11 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9462 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=3578, Invalid=30461, Unknown=1, NotChecked=0, Total=34040 [2022-01-18 11:12:12,724 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 8124 mSDsluCounter, 41763 mSDsCounter, 0 mSdLazyCounter, 8667 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8124 SdHoareTripleChecker+Valid, 41962 SdHoareTripleChecker+Invalid, 9654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 8667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 917 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:12,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8124 Valid, 41962 Invalid, 9654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 8667 Invalid, 0 Unknown, 917 Unchecked, 3.6s Time] [2022-01-18 11:12:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108216 states. [2022-01-18 11:12:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108216 to 31240. [2022-01-18 11:12:13,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31240 states, 31239 states have (on average 2.757770735298825) internal successors, (86150), 31239 states have internal predecessors, (86150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31240 states to 31240 states and 86150 transitions. [2022-01-18 11:12:13,855 INFO L78 Accepts]: Start accepts. Automaton has 31240 states and 86150 transitions. Word has length 283 [2022-01-18 11:12:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:13,855 INFO L470 AbstractCegarLoop]: Abstraction has 31240 states and 86150 transitions. [2022-01-18 11:12:13,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 5.361702127659575) internal successors, (504), 94 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 31240 states and 86150 transitions. [2022-01-18 11:12:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:12:13,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:13,890 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:12:13,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-01-18 11:12:14,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:12:14,090 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -457041764, now seen corresponding path program 24 times [2022-01-18 11:12:14,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:14,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258510700] [2022-01-18 11:12:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:14,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:15,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258510700] [2022-01-18 11:12:15,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258510700] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:12:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994206071] [2022-01-18 11:12:15,155 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:12:15,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:12:15,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:12:15,156 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:12:15,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-01-18 11:12:15,324 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 11:12:15,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:12:15,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:12:15,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:12:16,266 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:12:16,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:12:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:16,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:12:22,392 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:12:22,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:12:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:22,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994206071] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:12:22,570 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:12:22,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-01-18 11:12:22,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498532673] [2022-01-18 11:12:22,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:12:22,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-18 11:12:22,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-18 11:12:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=8544, Unknown=4, NotChecked=0, Total=8930 [2022-01-18 11:12:22,572 INFO L87 Difference]: Start difference. First operand 31240 states and 86150 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:35,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:35,599 INFO L93 Difference]: Finished difference Result 95946 states and 265389 transitions. [2022-01-18 11:12:35,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 11:12:35,600 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:12:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:35,803 INFO L225 Difference]: With dead ends: 95946 [2022-01-18 11:12:35,804 INFO L226 Difference]: Without dead ends: 95801 [2022-01-18 11:12:35,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 591 SyntacticMatches, 6 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8473 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=3192, Invalid=30476, Unknown=4, NotChecked=0, Total=33672 [2022-01-18 11:12:35,806 INFO L933 BasicCegarLoop]: 1046 mSDtfsCounter, 9504 mSDsluCounter, 43256 mSDsCounter, 0 mSdLazyCounter, 9167 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9504 SdHoareTripleChecker+Valid, 43695 SdHoareTripleChecker+Invalid, 10486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 9167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1206 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:35,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9504 Valid, 43695 Invalid, 10486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [113 Valid, 9167 Invalid, 0 Unknown, 1206 Unchecked, 3.8s Time] [2022-01-18 11:12:35,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95801 states. [2022-01-18 11:12:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95801 to 31323. [2022-01-18 11:12:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31323 states, 31322 states have (on average 2.757359044760871) internal successors, (86366), 31322 states have internal predecessors, (86366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:36,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31323 states to 31323 states and 86366 transitions. [2022-01-18 11:12:36,965 INFO L78 Accepts]: Start accepts. Automaton has 31323 states and 86366 transitions. Word has length 283 [2022-01-18 11:12:36,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:36,965 INFO L470 AbstractCegarLoop]: Abstraction has 31323 states and 86366 transitions. [2022-01-18 11:12:36,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:36,966 INFO L276 IsEmpty]: Start isEmpty. Operand 31323 states and 86366 transitions. [2022-01-18 11:12:37,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:12:37,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:37,009 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:12:37,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-01-18 11:12:37,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-01-18 11:12:37,210 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:37,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:37,211 INFO L85 PathProgramCache]: Analyzing trace with hash -54633264, now seen corresponding path program 25 times [2022-01-18 11:12:37,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:37,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995110204] [2022-01-18 11:12:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:37,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:38,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:38,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995110204] [2022-01-18 11:12:38,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995110204] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:12:38,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806271786] [2022-01-18 11:12:38,332 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:12:38,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:12:38,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:12:38,334 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:12:38,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-01-18 11:12:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:38,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 11:12:38,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:12:39,302 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:12:39,302 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2022-01-18 11:12:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:40,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:12:47,209 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:12:47,209 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:12:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:12:47,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806271786] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:12:47,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:12:47,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 31] total 98 [2022-01-18 11:12:47,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982925185] [2022-01-18 11:12:47,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:12:47,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-01-18 11:12:47,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-01-18 11:12:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=9088, Unknown=7, NotChecked=0, Total=9506 [2022-01-18 11:12:47,395 INFO L87 Difference]: Start difference. First operand 31323 states and 86366 transitions. Second operand has 98 states, 98 states have (on average 5.744897959183674) internal successors, (563), 98 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:00,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:00,859 INFO L93 Difference]: Finished difference Result 97594 states and 269440 transitions. [2022-01-18 11:13:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 11:13:00,859 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.744897959183674) internal successors, (563), 98 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-01-18 11:13:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:01,207 INFO L225 Difference]: With dead ends: 97594 [2022-01-18 11:13:01,207 INFO L226 Difference]: Without dead ends: 97421 [2022-01-18 11:13:01,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 576 SyntacticMatches, 22 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8747 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=3376, Invalid=27067, Unknown=7, NotChecked=0, Total=30450 [2022-01-18 11:13:01,209 INFO L933 BasicCegarLoop]: 1014 mSDtfsCounter, 10104 mSDsluCounter, 41737 mSDsCounter, 0 mSdLazyCounter, 8038 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10104 SdHoareTripleChecker+Valid, 42201 SdHoareTripleChecker+Invalid, 10457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 8038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2284 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:01,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10104 Valid, 42201 Invalid, 10457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [135 Valid, 8038 Invalid, 0 Unknown, 2284 Unchecked, 3.3s Time] [2022-01-18 11:13:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97421 states. [2022-01-18 11:13:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97421 to 31523. [2022-01-18 11:13:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31523 states, 31522 states have (on average 2.7573758010278535) internal successors, (86918), 31522 states have internal predecessors, (86918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31523 states to 31523 states and 86918 transitions. [2022-01-18 11:13:01,986 INFO L78 Accepts]: Start accepts. Automaton has 31523 states and 86918 transitions. Word has length 283 [2022-01-18 11:13:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:01,986 INFO L470 AbstractCegarLoop]: Abstraction has 31523 states and 86918 transitions. [2022-01-18 11:13:01,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.744897959183674) internal successors, (563), 98 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:01,986 INFO L276 IsEmpty]: Start isEmpty. Operand 31523 states and 86918 transitions. [2022-01-18 11:13:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:13:02,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:02,024 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:02,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-01-18 11:13:02,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-01-18 11:13:02,225 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:02,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash -254345770, now seen corresponding path program 26 times [2022-01-18 11:13:02,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:02,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423238849] [2022-01-18 11:13:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:02,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:13:03,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423238849] [2022-01-18 11:13:03,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423238849] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:13:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893278011] [2022-01-18 11:13:03,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:13:03,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:13:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:13:03,333 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:13:03,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-01-18 11:13:03,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:13:03,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:13:03,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:13:03,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:13:04,380 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:13:04,381 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-01-18 11:13:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:13:05,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:13:07,536 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-18 11:13:07,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-01-18 11:13:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:13:07,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893278011] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:13:07,728 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:13:07,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-01-18 11:13:07,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121948242] [2022-01-18 11:13:07,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:13:07,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-18 11:13:07,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-18 11:13:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=8542, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 11:13:07,730 INFO L87 Difference]: Start difference. First operand 31523 states and 86918 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:22,838 INFO L93 Difference]: Finished difference Result 117128 states and 324690 transitions. [2022-01-18 11:13:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-01-18 11:13:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-01-18 11:13:22,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:23,077 INFO L225 Difference]: With dead ends: 117128 [2022-01-18 11:13:23,077 INFO L226 Difference]: Without dead ends: 116876 [2022-01-18 11:13:23,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 596 SyntacticMatches, 9 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10234 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=4603, Invalid=34009, Unknown=0, NotChecked=0, Total=38612 [2022-01-18 11:13:23,080 INFO L933 BasicCegarLoop]: 1042 mSDtfsCounter, 11069 mSDsluCounter, 43001 mSDsCounter, 0 mSdLazyCounter, 8603 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11069 SdHoareTripleChecker+Valid, 43309 SdHoareTripleChecker+Invalid, 11548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 8603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2861 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:23,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11069 Valid, 43309 Invalid, 11548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 8603 Invalid, 0 Unknown, 2861 Unchecked, 3.6s Time] [2022-01-18 11:13:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116876 states. [2022-01-18 11:13:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116876 to 32980. [2022-01-18 11:13:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32980 states, 32979 states have (on average 2.7595742745383425) internal successors, (91008), 32979 states have internal predecessors, (91008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32980 states to 32980 states and 91008 transitions. [2022-01-18 11:13:24,264 INFO L78 Accepts]: Start accepts. Automaton has 32980 states and 91008 transitions. Word has length 283 [2022-01-18 11:13:24,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:24,264 INFO L470 AbstractCegarLoop]: Abstraction has 32980 states and 91008 transitions. [2022-01-18 11:13:24,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 32980 states and 91008 transitions. [2022-01-18 11:13:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-01-18 11:13:24,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:24,307 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:24,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-01-18 11:13:24,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:13:24,507 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1037269192, now seen corresponding path program 27 times [2022-01-18 11:13:24,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339433166] [2022-01-18 11:13:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:24,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:13:25,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339433166] [2022-01-18 11:13:25,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339433166] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:13:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918472036] [2022-01-18 11:13:25,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:13:25,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:13:25,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:13:25,505 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:13:25,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-01-18 11:13:25,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:13:25,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:13:25,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-01-18 11:13:25,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:13:26,566 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:13:26,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 25 [2022-01-18 11:13:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-18 11:13:27,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-01-18 11:13:29,475 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:13:29,487 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:13:29,487 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 11:13:29,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-01-18 11:13:29,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:13:29,676 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 284 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 87 known predicates. [2022-01-18 11:13:29,677 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:13:29,677 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:13:29,679 INFO L732 BasicCegarLoop]: Path program histogram: [27, 16, 10, 5, 1, 1, 1, 1] [2022-01-18 11:13:29,680 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:13:29,680 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:13:29,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:13:29 BasicIcfg [2022-01-18 11:13:29,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:13:29,681 INFO L158 Benchmark]: Toolchain (without parser) took 754940.29ms. Allocated memory was 392.2MB in the beginning and 7.5GB in the end (delta: 7.1GB). Free memory was 336.2MB in the beginning and 4.1GB in the end (delta: -3.7GB). Peak memory consumption was 3.4GB. Max. memory is 16.0GB. [2022-01-18 11:13:29,681 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 392.2MB. Free memory was 353.2MB in the beginning and 353.1MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.60ms. Allocated memory was 392.2MB in the beginning and 524.3MB in the end (delta: 132.1MB). Free memory was 336.0MB in the beginning and 495.0MB in the end (delta: -159.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.80ms. Allocated memory is still 524.3MB. Free memory was 495.0MB in the beginning and 491.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L158 Benchmark]: Boogie Preprocessor took 19.92ms. Allocated memory is still 524.3MB. Free memory was 491.9MB in the beginning and 490.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L158 Benchmark]: RCFGBuilder took 405.84ms. Allocated memory is still 524.3MB. Free memory was 490.8MB in the beginning and 469.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L158 Benchmark]: TraceAbstraction took 754274.72ms. Allocated memory was 524.3MB in the beginning and 7.5GB in the end (delta: 7.0GB). Free memory was 468.8MB in the beginning and 4.1GB in the end (delta: -3.6GB). Peak memory consumption was 3.4GB. Max. memory is 16.0GB. [2022-01-18 11:13:29,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 392.2MB. Free memory was 353.2MB in the beginning and 353.1MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 195.60ms. Allocated memory was 392.2MB in the beginning and 524.3MB in the end (delta: 132.1MB). Free memory was 336.0MB in the beginning and 495.0MB in the end (delta: -159.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.80ms. Allocated memory is still 524.3MB. Free memory was 495.0MB in the beginning and 491.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.92ms. Allocated memory is still 524.3MB. Free memory was 491.9MB in the beginning and 490.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 405.84ms. Allocated memory is still 524.3MB. Free memory was 490.8MB in the beginning and 469.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 754274.72ms. Allocated memory was 524.3MB in the beginning and 7.5GB in the end (delta: 7.0GB). Free memory was 468.8MB in the beginning and 4.1GB in the end (delta: -3.6GB). Peak memory consumption was 3.4GB. 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: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 284 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 87 known predicates. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 284 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 87 known predicates. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 284 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 87 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 358 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 754.1s, OverallIterations: 62, TraceHistogramMax: 5, PathProgramHistogramMax: 27, EmptinessCheckTime: 1.7s, AutomataDifference: 509.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276877 SdHoareTripleChecker+Valid, 128.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 276877 mSDsluCounter, 1332648 SdHoareTripleChecker+Invalid, 108.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 31915 IncrementalHoareTripleChecker+Unchecked, 1313487 mSDsCounter, 4021 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299246 IncrementalHoareTripleChecker+Invalid, 335182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4021 mSolverCounterUnsat, 43109 mSDtfsCounter, 299246 mSolverCounterSat, 2.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23634 GetRequests, 17461 SyntacticMatches, 207 SemanticMatches, 5966 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 626647 ImplicationChecksByTransitivity, 459.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32980occurred in iteration=61, InterpolantAutomatonStates: 3571, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 32.4s AutomataMinimizationTime, 61 MinimizatonAttempts, 1968562 StatesRemovedByMinimization, 58 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 191.3s InterpolantComputationTime, 23938 NumberOfCodeBlocks, 23324 NumberOfCodeBlocksAsserted, 129 NumberOfCheckSat, 31808 ConstructedInterpolants, 79 QuantifiedInterpolants, 265369 SizeOfPredicates, 1195 NumberOfNonLiveVariables, 15024 ConjunctsInSsa, 2165 ConjunctsInUnsatCore, 121 InterpolantComputations, 32 PerfectInterpolantSequences, 16496/16778 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