/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:20:59,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:20:59,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:20:59,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 16:20:59,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 16:20:59,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 16:20:59,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 16:20:59,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 16:20:59,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 16:20:59,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 16:20:59,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 16:20:59,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 16:20:59,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 16:20:59,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 16:20:59,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 16:20:59,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 16:20:59,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 16:20:59,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 16:20:59,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 16:20:59,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 16:20:59,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 16:20:59,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 16:20:59,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 16:20:59,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 16:20:59,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 16:20:59,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 16:20:59,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 16:20:59,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 16:20:59,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 16:20:59,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 16:20:59,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 16:20:59,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 16:20:59,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 16:20:59,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 16:20:59,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 16:20:59,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 16:20:59,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 16:20:59,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 16:20:59,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:20:59,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:20:59,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:20:59,971 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.epf [2022-03-01 16:20:59,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:20:59,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:20:59,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:20:59,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:20:59,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:20:59,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:20:59,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:20:59,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:20:59,994 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:20:59,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:20:59,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:20:59,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:20:59,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:20:59,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:20:59,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:20:59,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:20:59,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:20:59,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:20:59,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:20:59,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:20:59,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:20:59,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:21:00,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:21:00,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:21:00,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:21:00,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:21:00,243 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:21:00,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-01 16:21:00,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443771617/b93dca0ca7904d47954e3152bd616f00/FLAGfb2d07261 [2022-03-01 16:21:00,674 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:21:00,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-01 16:21:00,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443771617/b93dca0ca7904d47954e3152bd616f00/FLAGfb2d07261 [2022-03-01 16:21:00,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443771617/b93dca0ca7904d47954e3152bd616f00 [2022-03-01 16:21:00,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:21:00,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:21:00,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:21:00,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:21:00,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:21:00,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:00,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eed8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00, skipping insertion in model container [2022-03-01 16:21:00,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:00,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:21:00,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:21:00,934 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/test-hard1.wvr.c[3373,3386] [2022-03-01 16:21:00,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:21:00,942 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:21:00,962 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/test-hard1.wvr.c[3373,3386] [2022-03-01 16:21:00,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:21:00,973 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:21:00,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00 WrapperNode [2022-03-01 16:21:00,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:21:00,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:21:00,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:21:00,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:21:00,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:00,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,008 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-03-01 16:21:01,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:21:01,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:21:01,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:21:01,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:21:01,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:21:01,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:21:01,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:21:01,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:21:01,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (1/1) ... [2022-03-01 16:21:01,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:21:01,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:21:01,061 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) [2022-03-01 16:21:01,077 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 [2022-03-01 16:21:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:21:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:21:01,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:21:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:21:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:21:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 16:21:01,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 16:21:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 16:21:01,105 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 16:21:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:21:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:21:01,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:21:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:21:01,108 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 16:21:01,181 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:21:01,182 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:21:01,385 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:21:01,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:21:01,428 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 16:21:01,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:21:01 BoogieIcfgContainer [2022-03-01 16:21:01,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:21:01,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:21:01,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:21:01,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:21:01,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:21:00" (1/3) ... [2022-03-01 16:21:01,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0d9e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:21:01, skipping insertion in model container [2022-03-01 16:21:01,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:21:00" (2/3) ... [2022-03-01 16:21:01,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0d9e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:21:01, skipping insertion in model container [2022-03-01 16:21:01,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:21:01" (3/3) ... [2022-03-01 16:21:01,437 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-03-01 16:21:01,441 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:21:01,441 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:21:01,442 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:21:01,442 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:21:01,484 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,485 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,485 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,485 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,486 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,486 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,488 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,488 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,489 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,489 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,489 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,490 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,490 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,490 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,492 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,492 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,492 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,493 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,493 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,493 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,494 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,494 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,494 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,496 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,496 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,497 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,497 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,497 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,497 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,498 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,498 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,498 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,498 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,499 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,499 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,500 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,500 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,503 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,503 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,503 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,503 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,505 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,505 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,506 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,506 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,507 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:21:01,518 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 16:21:01,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:21:01,575 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 16:21:01,575 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 16:21:01,591 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 135 transitions, 302 flow [2022-03-01 16:21:02,277 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-01 16:21:02,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:02,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:02,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2058988717, now seen corresponding path program 1 times [2022-03-01 16:21:02,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:02,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764957301] [2022-03-01 16:21:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:02,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:02,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:02,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764957301] [2022-03-01 16:21:02,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764957301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:02,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:02,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 16:21:02,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597837297] [2022-03-01 16:21:02,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:02,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 16:21:02,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:02,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 16:21:02,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:21:02,931 INFO L87 Difference]: Start difference. First operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 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 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:03,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:03,207 INFO L93 Difference]: Finished difference Result 13249 states and 59470 transitions. [2022-03-01 16:21:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 16:21:03,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-03-01 16:21:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:03,501 INFO L225 Difference]: With dead ends: 13249 [2022-03-01 16:21:03,501 INFO L226 Difference]: Without dead ends: 13247 [2022-03-01 16:21:03,503 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 [2022-03-01 16:21:03,506 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:03,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:21:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2022-03-01 16:21:04,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 13247. [2022-03-01 16:21:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 13246 states have (on average 4.489506266042579) internal successors, (59468), 13246 states have internal predecessors, (59468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 59468 transitions. [2022-03-01 16:21:04,215 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 59468 transitions. Word has length 98 [2022-03-01 16:21:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:04,217 INFO L470 AbstractCegarLoop]: Abstraction has 13247 states and 59468 transitions. [2022-03-01 16:21:04,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 59468 transitions. [2022-03-01 16:21:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-01 16:21:04,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:04,282 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] [2022-03-01 16:21:04,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:21:04,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1413398939, now seen corresponding path program 1 times [2022-03-01 16:21:04,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:04,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781061820] [2022-03-01 16:21:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:04,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:04,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781061820] [2022-03-01 16:21:04,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781061820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:04,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:04,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 16:21:04,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610666150] [2022-03-01 16:21:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:04,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:21:04,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:04,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:21:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:21:04,577 INFO L87 Difference]: Start difference. First operand 13247 states and 59468 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:05,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:05,198 INFO L93 Difference]: Finished difference Result 20737 states and 92881 transitions. [2022-03-01 16:21:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:21:05,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-03-01 16:21:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:05,469 INFO L225 Difference]: With dead ends: 20737 [2022-03-01 16:21:05,469 INFO L226 Difference]: Without dead ends: 20290 [2022-03-01 16:21:05,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-01 16:21:05,470 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:05,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 445 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2022-03-01 16:21:06,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 16679. [2022-03-01 16:21:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16679 states, 16678 states have (on average 4.47133948914738) internal successors, (74573), 16678 states have internal predecessors, (74573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 74573 transitions. [2022-03-01 16:21:06,321 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 74573 transitions. Word has length 98 [2022-03-01 16:21:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:06,322 INFO L470 AbstractCegarLoop]: Abstraction has 16679 states and 74573 transitions. [2022-03-01 16:21:06,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:06,323 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 74573 transitions. [2022-03-01 16:21:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:06,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:06,580 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] [2022-03-01 16:21:06,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:21:06,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1520857668, now seen corresponding path program 1 times [2022-03-01 16:21:06,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:06,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104893988] [2022-03-01 16:21:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:06,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:06,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104893988] [2022-03-01 16:21:06,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104893988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:06,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:06,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:21:06,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229732486] [2022-03-01 16:21:06,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:06,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:06,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:21:06,826 INFO L87 Difference]: Start difference. First operand 16679 states and 74573 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:07,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:07,333 INFO L93 Difference]: Finished difference Result 26954 states and 120021 transitions. [2022-03-01 16:21:07,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:21:07,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:07,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:07,511 INFO L225 Difference]: With dead ends: 26954 [2022-03-01 16:21:07,512 INFO L226 Difference]: Without dead ends: 26498 [2022-03-01 16:21:07,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:21:07,518 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 153 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:07,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 419 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26498 states. [2022-03-01 16:21:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26498 to 19892. [2022-03-01 16:21:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19892 states, 19891 states have (on average 4.536322960132724) internal successors, (90232), 19891 states have internal predecessors, (90232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 90232 transitions. [2022-03-01 16:21:08,502 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 90232 transitions. Word has length 101 [2022-03-01 16:21:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:08,655 INFO L470 AbstractCegarLoop]: Abstraction has 19892 states and 90232 transitions. [2022-03-01 16:21:08,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 90232 transitions. [2022-03-01 16:21:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:08,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:08,811 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] [2022-03-01 16:21:08,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:21:08,813 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:08,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1028401524, now seen corresponding path program 1 times [2022-03-01 16:21:08,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:08,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860909413] [2022-03-01 16:21:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:09,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:09,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860909413] [2022-03-01 16:21:09,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860909413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:09,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:09,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:21:09,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986660339] [2022-03-01 16:21:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:09,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:09,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:21:09,021 INFO L87 Difference]: Start difference. First operand 19892 states and 90232 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:09,633 INFO L93 Difference]: Finished difference Result 36365 states and 161249 transitions. [2022-03-01 16:21:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:21:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:09,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:09,918 INFO L225 Difference]: With dead ends: 36365 [2022-03-01 16:21:09,918 INFO L226 Difference]: Without dead ends: 35807 [2022-03-01 16:21:09,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:21:09,928 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 170 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:09,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 542 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:10,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35807 states. [2022-03-01 16:21:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35807 to 25190. [2022-03-01 16:21:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25190 states, 25189 states have (on average 4.58307197586248) internal successors, (115443), 25189 states have internal predecessors, (115443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25190 states to 25190 states and 115443 transitions. [2022-03-01 16:21:11,202 INFO L78 Accepts]: Start accepts. Automaton has 25190 states and 115443 transitions. Word has length 101 [2022-03-01 16:21:11,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:11,202 INFO L470 AbstractCegarLoop]: Abstraction has 25190 states and 115443 transitions. [2022-03-01 16:21:11,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 25190 states and 115443 transitions. [2022-03-01 16:21:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:11,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:11,354 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] [2022-03-01 16:21:11,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 16:21:11,354 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:11,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash 624817402, now seen corresponding path program 1 times [2022-03-01 16:21:11,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:11,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786011762] [2022-03-01 16:21:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:11,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:11,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786011762] [2022-03-01 16:21:11,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786011762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:11,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:11,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:21:11,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676115832] [2022-03-01 16:21:11,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:11,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:21:11,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:11,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:21:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:21:11,613 INFO L87 Difference]: Start difference. First operand 25190 states and 115443 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:12,481 INFO L93 Difference]: Finished difference Result 46225 states and 206773 transitions. [2022-03-01 16:21:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 16:21:12,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:12,829 INFO L225 Difference]: With dead ends: 46225 [2022-03-01 16:21:12,829 INFO L226 Difference]: Without dead ends: 45757 [2022-03-01 16:21:12,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-03-01 16:21:12,830 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 396 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:12,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 659 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:21:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45757 states. [2022-03-01 16:21:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45757 to 32650. [2022-03-01 16:21:14,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32650 states, 32649 states have (on average 4.597874360623603) internal successors, (150116), 32649 states have internal predecessors, (150116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32650 states to 32650 states and 150116 transitions. [2022-03-01 16:21:14,375 INFO L78 Accepts]: Start accepts. Automaton has 32650 states and 150116 transitions. Word has length 101 [2022-03-01 16:21:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:14,376 INFO L470 AbstractCegarLoop]: Abstraction has 32650 states and 150116 transitions. [2022-03-01 16:21:14,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 32650 states and 150116 transitions. [2022-03-01 16:21:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:14,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:14,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:14,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 16:21:14,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1755644018, now seen corresponding path program 2 times [2022-03-01 16:21:14,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:14,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045533883] [2022-03-01 16:21:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:14,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:14,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045533883] [2022-03-01 16:21:14,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045533883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:14,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:14,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:21:14,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060466974] [2022-03-01 16:21:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:14,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:14,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:14,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:21:14,617 INFO L87 Difference]: Start difference. First operand 32650 states and 150116 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:15,389 INFO L93 Difference]: Finished difference Result 55865 states and 253163 transitions. [2022-03-01 16:21:15,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:21:15,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:15,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:15,985 INFO L225 Difference]: With dead ends: 55865 [2022-03-01 16:21:15,985 INFO L226 Difference]: Without dead ends: 55394 [2022-03-01 16:21:15,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:15,986 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:15,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 443 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:16,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55394 states. [2022-03-01 16:21:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55394 to 35771. [2022-03-01 16:21:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35771 states, 35770 states have (on average 4.641962538440033) internal successors, (166043), 35770 states have internal predecessors, (166043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35771 states to 35771 states and 166043 transitions. [2022-03-01 16:21:17,450 INFO L78 Accepts]: Start accepts. Automaton has 35771 states and 166043 transitions. Word has length 101 [2022-03-01 16:21:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:17,451 INFO L470 AbstractCegarLoop]: Abstraction has 35771 states and 166043 transitions. [2022-03-01 16:21:17,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 35771 states and 166043 transitions. [2022-03-01 16:21:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:17,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:17,551 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] [2022-03-01 16:21:17,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 16:21:17,552 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1678848424, now seen corresponding path program 3 times [2022-03-01 16:21:17,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:17,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649760849] [2022-03-01 16:21:17,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:17,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:18,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:18,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649760849] [2022-03-01 16:21:18,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649760849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:18,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:18,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:21:18,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229523365] [2022-03-01 16:21:18,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:18,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:21:18,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:21:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:18,067 INFO L87 Difference]: Start difference. First operand 35771 states and 166043 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:18,873 INFO L93 Difference]: Finished difference Result 57044 states and 259566 transitions. [2022-03-01 16:21:18,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:21:18,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:19,153 INFO L225 Difference]: With dead ends: 57044 [2022-03-01 16:21:19,153 INFO L226 Difference]: Without dead ends: 55937 [2022-03-01 16:21:19,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:21:19,154 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 180 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:19,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 632 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55937 states. [2022-03-01 16:21:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55937 to 37277. [2022-03-01 16:21:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37277 states, 37276 states have (on average 4.638695138963408) internal successors, (172912), 37276 states have internal predecessors, (172912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37277 states to 37277 states and 172912 transitions. [2022-03-01 16:21:20,762 INFO L78 Accepts]: Start accepts. Automaton has 37277 states and 172912 transitions. Word has length 101 [2022-03-01 16:21:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:20,762 INFO L470 AbstractCegarLoop]: Abstraction has 37277 states and 172912 transitions. [2022-03-01 16:21:20,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 37277 states and 172912 transitions. [2022-03-01 16:21:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:21,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:21,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:21,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 16:21:21,165 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2009241916, now seen corresponding path program 4 times [2022-03-01 16:21:21,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:21,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652415219] [2022-03-01 16:21:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:21,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:21,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652415219] [2022-03-01 16:21:21,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652415219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:21,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:21,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:21:21,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586954487] [2022-03-01 16:21:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:21,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:21,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:21,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:21,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:21:21,354 INFO L87 Difference]: Start difference. First operand 37277 states and 172912 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:22,236 INFO L93 Difference]: Finished difference Result 59777 states and 272701 transitions. [2022-03-01 16:21:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:21:22,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:22,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:22,562 INFO L225 Difference]: With dead ends: 59777 [2022-03-01 16:21:22,563 INFO L226 Difference]: Without dead ends: 59306 [2022-03-01 16:21:22,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:22,563 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 125 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:22,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 373 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59306 states. [2022-03-01 16:21:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59306 to 38606. [2022-03-01 16:21:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38606 states, 38605 states have (on average 4.699391270560808) internal successors, (181420), 38605 states have internal predecessors, (181420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38606 states to 38606 states and 181420 transitions. [2022-03-01 16:21:24,136 INFO L78 Accepts]: Start accepts. Automaton has 38606 states and 181420 transitions. Word has length 101 [2022-03-01 16:21:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:24,136 INFO L470 AbstractCegarLoop]: Abstraction has 38606 states and 181420 transitions. [2022-03-01 16:21:24,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 38606 states and 181420 transitions. [2022-03-01 16:21:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:24,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:24,239 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] [2022-03-01 16:21:24,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 16:21:24,239 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1148767062, now seen corresponding path program 5 times [2022-03-01 16:21:24,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:24,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185013616] [2022-03-01 16:21:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:24,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:24,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:24,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185013616] [2022-03-01 16:21:24,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185013616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:24,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:24,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:21:24,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269188680] [2022-03-01 16:21:24,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:24,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:21:24,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:24,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:21:24,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:24,376 INFO L87 Difference]: Start difference. First operand 38606 states and 181420 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:25,612 INFO L93 Difference]: Finished difference Result 63269 states and 290905 transitions. [2022-03-01 16:21:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:21:25,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:25,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:25,953 INFO L225 Difference]: With dead ends: 63269 [2022-03-01 16:21:25,953 INFO L226 Difference]: Without dead ends: 62330 [2022-03-01 16:21:25,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:21:25,954 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 134 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:25,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 741 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:21:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62330 states. [2022-03-01 16:21:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62330 to 37798. [2022-03-01 16:21:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37798 states, 37797 states have (on average 4.671878720533376) internal successors, (176583), 37797 states have internal predecessors, (176583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37798 states to 37798 states and 176583 transitions. [2022-03-01 16:21:27,646 INFO L78 Accepts]: Start accepts. Automaton has 37798 states and 176583 transitions. Word has length 101 [2022-03-01 16:21:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:27,647 INFO L470 AbstractCegarLoop]: Abstraction has 37798 states and 176583 transitions. [2022-03-01 16:21:27,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 37798 states and 176583 transitions. [2022-03-01 16:21:27,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:27,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:27,744 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] [2022-03-01 16:21:27,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 16:21:27,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1164695738, now seen corresponding path program 6 times [2022-03-01 16:21:27,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:27,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381700397] [2022-03-01 16:21:27,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:27,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:27,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:27,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381700397] [2022-03-01 16:21:27,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381700397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:27,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:27,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:21:27,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580312434] [2022-03-01 16:21:27,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:27,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:21:27,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:21:27,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:21:27,872 INFO L87 Difference]: Start difference. First operand 37798 states and 176583 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:28,900 INFO L93 Difference]: Finished difference Result 64102 states and 285493 transitions. [2022-03-01 16:21:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:21:28,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:29,481 INFO L225 Difference]: With dead ends: 64102 [2022-03-01 16:21:29,481 INFO L226 Difference]: Without dead ends: 63748 [2022-03-01 16:21:29,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:21:29,481 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 392 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:29,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 718 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:21:29,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63748 states. [2022-03-01 16:21:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63748 to 38272. [2022-03-01 16:21:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38272 states, 38271 states have (on average 4.6754461602780175) internal successors, (178934), 38271 states have internal predecessors, (178934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38272 states to 38272 states and 178934 transitions. [2022-03-01 16:21:31,168 INFO L78 Accepts]: Start accepts. Automaton has 38272 states and 178934 transitions. Word has length 101 [2022-03-01 16:21:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:31,169 INFO L470 AbstractCegarLoop]: Abstraction has 38272 states and 178934 transitions. [2022-03-01 16:21:31,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 38272 states and 178934 transitions. [2022-03-01 16:21:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:31,267 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:31,267 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] [2022-03-01 16:21:31,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 16:21:31,267 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1250229748, now seen corresponding path program 1 times [2022-03-01 16:21:31,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:31,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043324710] [2022-03-01 16:21:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:31,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:31,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043324710] [2022-03-01 16:21:31,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043324710] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:21:31,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636983464] [2022-03-01 16:21:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:31,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:21:31,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:21:31,390 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) [2022-03-01 16:21:31,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 16:21:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:31,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-01 16:21:31,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:21:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:31,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:21:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:32,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636983464] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:21:32,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:21:32,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2022-03-01 16:21:32,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630382657] [2022-03-01 16:21:32,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:32,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:21:32,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:32,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:21:32,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:21:32,290 INFO L87 Difference]: Start difference. First operand 38272 states and 178934 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:33,769 INFO L93 Difference]: Finished difference Result 82609 states and 374871 transitions. [2022-03-01 16:21:33,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:21:33,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:34,196 INFO L225 Difference]: With dead ends: 82609 [2022-03-01 16:21:34,197 INFO L226 Difference]: Without dead ends: 79993 [2022-03-01 16:21:34,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:21:34,197 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 344 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:34,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 825 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:21:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79993 states. [2022-03-01 16:21:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79993 to 43146. [2022-03-01 16:21:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43146 states, 43145 states have (on average 4.650782245914938) internal successors, (200658), 43145 states have internal predecessors, (200658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43146 states to 43146 states and 200658 transitions. [2022-03-01 16:21:36,439 INFO L78 Accepts]: Start accepts. Automaton has 43146 states and 200658 transitions. Word has length 101 [2022-03-01 16:21:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:36,439 INFO L470 AbstractCegarLoop]: Abstraction has 43146 states and 200658 transitions. [2022-03-01 16:21:36,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 43146 states and 200658 transitions. [2022-03-01 16:21:36,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:36,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:36,601 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] [2022-03-01 16:21:36,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-01 16:21:36,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-01 16:21:36,802 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:36,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2091700616, now seen corresponding path program 2 times [2022-03-01 16:21:36,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:36,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103635874] [2022-03-01 16:21:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:36,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:37,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:37,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103635874] [2022-03-01 16:21:37,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103635874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:37,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:37,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:21:37,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882799387] [2022-03-01 16:21:37,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:37,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:21:37,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:37,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:21:37,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:21:37,013 INFO L87 Difference]: Start difference. First operand 43146 states and 200658 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:38,288 INFO L93 Difference]: Finished difference Result 79466 states and 354186 transitions. [2022-03-01 16:21:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:21:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:38,698 INFO L225 Difference]: With dead ends: 79466 [2022-03-01 16:21:38,698 INFO L226 Difference]: Without dead ends: 78026 [2022-03-01 16:21:38,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:21:38,699 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 478 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:38,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 704 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:21:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78026 states. [2022-03-01 16:21:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78026 to 43478. [2022-03-01 16:21:40,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43478 states, 43477 states have (on average 4.664190261517584) internal successors, (202785), 43477 states have internal predecessors, (202785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43478 states to 43478 states and 202785 transitions. [2022-03-01 16:21:40,919 INFO L78 Accepts]: Start accepts. Automaton has 43478 states and 202785 transitions. Word has length 101 [2022-03-01 16:21:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:40,920 INFO L470 AbstractCegarLoop]: Abstraction has 43478 states and 202785 transitions. [2022-03-01 16:21:40,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 43478 states and 202785 transitions. [2022-03-01 16:21:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:41,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:41,034 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] [2022-03-01 16:21:41,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 16:21:41,035 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:41,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:41,035 INFO L85 PathProgramCache]: Analyzing trace with hash 825070516, now seen corresponding path program 2 times [2022-03-01 16:21:41,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:41,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732575866] [2022-03-01 16:21:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:41,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:41,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:41,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732575866] [2022-03-01 16:21:41,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732575866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:41,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:41,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:21:41,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754533477] [2022-03-01 16:21:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:41,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:41,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:21:41,146 INFO L87 Difference]: Start difference. First operand 43478 states and 202785 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:42,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:42,399 INFO L93 Difference]: Finished difference Result 84531 states and 381017 transitions. [2022-03-01 16:21:42,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:21:42,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:42,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:42,955 INFO L225 Difference]: With dead ends: 84531 [2022-03-01 16:21:42,956 INFO L226 Difference]: Without dead ends: 83742 [2022-03-01 16:21:42,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:42,956 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 153 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:42,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 473 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:43,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83742 states. [2022-03-01 16:21:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83742 to 50216. [2022-03-01 16:21:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50216 states, 50215 states have (on average 4.677486806731056) internal successors, (234880), 50215 states have internal predecessors, (234880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50216 states to 50216 states and 234880 transitions. [2022-03-01 16:21:45,217 INFO L78 Accepts]: Start accepts. Automaton has 50216 states and 234880 transitions. Word has length 101 [2022-03-01 16:21:45,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:45,217 INFO L470 AbstractCegarLoop]: Abstraction has 50216 states and 234880 transitions. [2022-03-01 16:21:45,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 50216 states and 234880 transitions. [2022-03-01 16:21:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:45,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:45,352 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] [2022-03-01 16:21:45,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 16:21:45,352 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1490924426, now seen corresponding path program 2 times [2022-03-01 16:21:45,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:45,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415996165] [2022-03-01 16:21:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:45,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:45,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:45,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415996165] [2022-03-01 16:21:45,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415996165] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:21:45,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131993204] [2022-03-01 16:21:45,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:21:45,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:21:45,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:21:45,888 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) [2022-03-01 16:21:45,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 16:21:45,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:21:45,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:21:45,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:21:45,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:21:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:46,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:21:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:46,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131993204] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:21:46,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:21:46,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-03-01 16:21:46,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792374984] [2022-03-01 16:21:46,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:46,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:21:46,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:46,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:21:46,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-01 16:21:46,711 INFO L87 Difference]: Start difference. First operand 50216 states and 234880 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:47,588 INFO L93 Difference]: Finished difference Result 78516 states and 360242 transitions. [2022-03-01 16:21:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:21:47,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:47,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:47,953 INFO L225 Difference]: With dead ends: 78516 [2022-03-01 16:21:47,953 INFO L226 Difference]: Without dead ends: 78516 [2022-03-01 16:21:47,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:21:47,954 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 168 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:47,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 608 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78516 states. [2022-03-01 16:21:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78516 to 52826. [2022-03-01 16:21:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52826 states, 52825 states have (on average 4.6809843823946995) internal successors, (247273), 52825 states have internal predecessors, (247273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52826 states to 52826 states and 247273 transitions. [2022-03-01 16:21:50,363 INFO L78 Accepts]: Start accepts. Automaton has 52826 states and 247273 transitions. Word has length 101 [2022-03-01 16:21:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:50,363 INFO L470 AbstractCegarLoop]: Abstraction has 52826 states and 247273 transitions. [2022-03-01 16:21:50,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 52826 states and 247273 transitions. [2022-03-01 16:21:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:50,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:50,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:50,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 16:21:50,707 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,SelfDestructingSolverStorable13 [2022-03-01 16:21:50,710 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:50,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash -538059778, now seen corresponding path program 3 times [2022-03-01 16:21:50,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:50,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622470630] [2022-03-01 16:21:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:50,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:50,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622470630] [2022-03-01 16:21:50,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622470630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:50,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:50,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:21:50,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020451053] [2022-03-01 16:21:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:50,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:21:50,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:50,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:21:50,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:21:50,846 INFO L87 Difference]: Start difference. First operand 52826 states and 247273 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:52,234 INFO L93 Difference]: Finished difference Result 82873 states and 377125 transitions. [2022-03-01 16:21:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:21:52,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:52,711 INFO L225 Difference]: With dead ends: 82873 [2022-03-01 16:21:52,712 INFO L226 Difference]: Without dead ends: 82873 [2022-03-01 16:21:52,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:21:52,712 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 194 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:52,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 757 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:21:52,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82873 states. [2022-03-01 16:21:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82873 to 52916. [2022-03-01 16:21:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52916 states, 52915 states have (on average 4.688916186336577) internal successors, (248114), 52915 states have internal predecessors, (248114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52916 states to 52916 states and 248114 transitions. [2022-03-01 16:21:55,269 INFO L78 Accepts]: Start accepts. Automaton has 52916 states and 248114 transitions. Word has length 101 [2022-03-01 16:21:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:55,269 INFO L470 AbstractCegarLoop]: Abstraction has 52916 states and 248114 transitions. [2022-03-01 16:21:55,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 52916 states and 248114 transitions. [2022-03-01 16:21:55,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:21:55,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:55,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:55,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 16:21:55,428 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:55,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1066615254, now seen corresponding path program 3 times [2022-03-01 16:21:55,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:55,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332123898] [2022-03-01 16:21:55,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:55,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:55,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:55,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332123898] [2022-03-01 16:21:55,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332123898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:55,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:55,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:21:55,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234411825] [2022-03-01 16:21:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:55,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:21:55,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:21:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:21:55,658 INFO L87 Difference]: Start difference. First operand 52916 states and 248114 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:57,207 INFO L93 Difference]: Finished difference Result 98343 states and 444056 transitions. [2022-03-01 16:21:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:21:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:21:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:57,721 INFO L225 Difference]: With dead ends: 98343 [2022-03-01 16:21:57,721 INFO L226 Difference]: Without dead ends: 97287 [2022-03-01 16:21:57,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:21:57,724 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 249 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:57,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 682 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:21:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97287 states. [2022-03-01 16:22:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97287 to 57024. [2022-03-01 16:22:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57024 states, 57023 states have (on average 4.686950879469688) internal successors, (267264), 57023 states have internal predecessors, (267264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57024 states to 57024 states and 267264 transitions. [2022-03-01 16:22:00,459 INFO L78 Accepts]: Start accepts. Automaton has 57024 states and 267264 transitions. Word has length 101 [2022-03-01 16:22:00,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:00,459 INFO L470 AbstractCegarLoop]: Abstraction has 57024 states and 267264 transitions. [2022-03-01 16:22:00,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 57024 states and 267264 transitions. [2022-03-01 16:22:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:00,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:00,619 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] [2022-03-01 16:22:00,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 16:22:00,619 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:00,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1001247478, now seen corresponding path program 3 times [2022-03-01 16:22:00,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:00,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456938018] [2022-03-01 16:22:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:00,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:01,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:01,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456938018] [2022-03-01 16:22:01,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456938018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:01,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:01,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:22:01,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238817835] [2022-03-01 16:22:01,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:01,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:22:01,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:22:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:22:01,108 INFO L87 Difference]: Start difference. First operand 57024 states and 267264 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:02,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:02,208 INFO L93 Difference]: Finished difference Result 85680 states and 392261 transitions. [2022-03-01 16:22:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:22:02,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:02,632 INFO L225 Difference]: With dead ends: 85680 [2022-03-01 16:22:02,633 INFO L226 Difference]: Without dead ends: 84408 [2022-03-01 16:22:02,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:22:02,633 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 381 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:02,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 570 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:22:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84408 states. [2022-03-01 16:22:04,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84408 to 58212. [2022-03-01 16:22:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58212 states, 58211 states have (on average 4.6931164212949446) internal successors, (273191), 58211 states have internal predecessors, (273191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58212 states to 58212 states and 273191 transitions. [2022-03-01 16:22:05,101 INFO L78 Accepts]: Start accepts. Automaton has 58212 states and 273191 transitions. Word has length 101 [2022-03-01 16:22:05,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:05,101 INFO L470 AbstractCegarLoop]: Abstraction has 58212 states and 273191 transitions. [2022-03-01 16:22:05,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 58212 states and 273191 transitions. [2022-03-01 16:22:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:05,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:05,257 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] [2022-03-01 16:22:05,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 16:22:05,257 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:05,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash 927118624, now seen corresponding path program 4 times [2022-03-01 16:22:05,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:05,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799937061] [2022-03-01 16:22:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:05,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:05,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799937061] [2022-03-01 16:22:05,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799937061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:05,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:05,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:22:05,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895697921] [2022-03-01 16:22:05,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:05,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:22:05,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:22:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:22:05,831 INFO L87 Difference]: Start difference. First operand 58212 states and 273191 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:08,220 INFO L93 Difference]: Finished difference Result 163365 states and 732340 transitions. [2022-03-01 16:22:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:22:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:09,587 INFO L225 Difference]: With dead ends: 163365 [2022-03-01 16:22:09,587 INFO L226 Difference]: Without dead ends: 161862 [2022-03-01 16:22:09,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:22:09,598 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 799 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:09,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 1198 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:22:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161862 states. [2022-03-01 16:22:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161862 to 58791. [2022-03-01 16:22:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58791 states, 58790 states have (on average 4.702976696717129) internal successors, (276488), 58790 states have internal predecessors, (276488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58791 states to 58791 states and 276488 transitions. [2022-03-01 16:22:13,341 INFO L78 Accepts]: Start accepts. Automaton has 58791 states and 276488 transitions. Word has length 101 [2022-03-01 16:22:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:13,342 INFO L470 AbstractCegarLoop]: Abstraction has 58791 states and 276488 transitions. [2022-03-01 16:22:13,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 58791 states and 276488 transitions. [2022-03-01 16:22:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:13,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:13,508 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] [2022-03-01 16:22:13,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 16:22:13,508 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:13,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:13,509 INFO L85 PathProgramCache]: Analyzing trace with hash -159366288, now seen corresponding path program 7 times [2022-03-01 16:22:13,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:13,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956931590] [2022-03-01 16:22:13,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:13,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:13,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:13,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956931590] [2022-03-01 16:22:13,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956931590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:13,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:13,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:22:13,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508983656] [2022-03-01 16:22:13,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:13,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:22:13,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:13,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:22:13,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:22:13,663 INFO L87 Difference]: Start difference. First operand 58791 states and 276488 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:15,813 INFO L93 Difference]: Finished difference Result 124729 states and 567200 transitions. [2022-03-01 16:22:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:22:15,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:16,729 INFO L225 Difference]: With dead ends: 124729 [2022-03-01 16:22:16,729 INFO L226 Difference]: Without dead ends: 123229 [2022-03-01 16:22:16,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:22:16,730 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 584 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:16,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 762 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:22:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123229 states. [2022-03-01 16:22:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123229 to 65971. [2022-03-01 16:22:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65971 states, 65970 states have (on average 4.7237229043504625) internal successors, (311624), 65970 states have internal predecessors, (311624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65971 states to 65971 states and 311624 transitions. [2022-03-01 16:22:20,316 INFO L78 Accepts]: Start accepts. Automaton has 65971 states and 311624 transitions. Word has length 101 [2022-03-01 16:22:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:20,317 INFO L470 AbstractCegarLoop]: Abstraction has 65971 states and 311624 transitions. [2022-03-01 16:22:20,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65971 states and 311624 transitions. [2022-03-01 16:22:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:20,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:20,494 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] [2022-03-01 16:22:20,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 16:22:20,494 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:20,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash -64670636, now seen corresponding path program 8 times [2022-03-01 16:22:20,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:20,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538901518] [2022-03-01 16:22:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:21,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:21,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538901518] [2022-03-01 16:22:21,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538901518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:21,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:21,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:22:21,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557181252] [2022-03-01 16:22:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:21,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:22:21,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:22:21,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:22:21,068 INFO L87 Difference]: Start difference. First operand 65971 states and 311624 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:23,420 INFO L93 Difference]: Finished difference Result 157985 states and 720792 transitions. [2022-03-01 16:22:23,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:22:23,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:23,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:24,419 INFO L225 Difference]: With dead ends: 157985 [2022-03-01 16:22:24,419 INFO L226 Difference]: Without dead ends: 157907 [2022-03-01 16:22:24,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:22:24,420 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 755 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:24,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 762 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:22:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157907 states. [2022-03-01 16:22:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157907 to 69297. [2022-03-01 16:22:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69297 states, 69296 states have (on average 4.7748787808820135) internal successors, (330880), 69296 states have internal predecessors, (330880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69297 states to 69297 states and 330880 transitions. [2022-03-01 16:22:28,813 INFO L78 Accepts]: Start accepts. Automaton has 69297 states and 330880 transitions. Word has length 101 [2022-03-01 16:22:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:28,813 INFO L470 AbstractCegarLoop]: Abstraction has 69297 states and 330880 transitions. [2022-03-01 16:22:28,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 69297 states and 330880 transitions. [2022-03-01 16:22:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:29,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:29,002 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] [2022-03-01 16:22:29,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 16:22:29,002 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1014744858, now seen corresponding path program 9 times [2022-03-01 16:22:29,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:29,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920468234] [2022-03-01 16:22:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:29,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:29,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:29,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920468234] [2022-03-01 16:22:29,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920468234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:29,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:29,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:22:29,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479508367] [2022-03-01 16:22:29,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:29,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:22:29,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:29,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:22:29,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:22:29,558 INFO L87 Difference]: Start difference. First operand 69297 states and 330880 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:31,542 INFO L93 Difference]: Finished difference Result 165656 states and 758990 transitions. [2022-03-01 16:22:31,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:22:31,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:32,918 INFO L225 Difference]: With dead ends: 165656 [2022-03-01 16:22:32,918 INFO L226 Difference]: Without dead ends: 164234 [2022-03-01 16:22:32,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:22:32,919 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 522 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:32,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 837 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:22:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164234 states. [2022-03-01 16:22:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164234 to 69867. [2022-03-01 16:22:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69867 states, 69866 states have (on average 4.789110583116251) internal successors, (334596), 69866 states have internal predecessors, (334596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69867 states to 69867 states and 334596 transitions. [2022-03-01 16:22:36,852 INFO L78 Accepts]: Start accepts. Automaton has 69867 states and 334596 transitions. Word has length 101 [2022-03-01 16:22:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:36,853 INFO L470 AbstractCegarLoop]: Abstraction has 69867 states and 334596 transitions. [2022-03-01 16:22:36,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 69867 states and 334596 transitions. [2022-03-01 16:22:37,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:37,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:37,482 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] [2022-03-01 16:22:37,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 16:22:37,482 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1523804302, now seen corresponding path program 10 times [2022-03-01 16:22:37,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:37,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827723427] [2022-03-01 16:22:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:37,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:37,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:37,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827723427] [2022-03-01 16:22:37,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827723427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:37,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:37,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:22:37,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377306547] [2022-03-01 16:22:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:37,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:22:37,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:22:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:22:37,659 INFO L87 Difference]: Start difference. First operand 69867 states and 334596 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:39,748 INFO L93 Difference]: Finished difference Result 160014 states and 736969 transitions. [2022-03-01 16:22:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:22:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:41,287 INFO L225 Difference]: With dead ends: 160014 [2022-03-01 16:22:41,287 INFO L226 Difference]: Without dead ends: 158142 [2022-03-01 16:22:41,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:22:41,288 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 517 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:41,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 1003 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:22:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158142 states. [2022-03-01 16:22:44,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158142 to 69175. [2022-03-01 16:22:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69175 states, 69174 states have (on average 4.7830543267701735) internal successors, (330863), 69174 states have internal predecessors, (330863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69175 states to 69175 states and 330863 transitions. [2022-03-01 16:22:45,232 INFO L78 Accepts]: Start accepts. Automaton has 69175 states and 330863 transitions. Word has length 101 [2022-03-01 16:22:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:45,233 INFO L470 AbstractCegarLoop]: Abstraction has 69175 states and 330863 transitions. [2022-03-01 16:22:45,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 69175 states and 330863 transitions. [2022-03-01 16:22:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:45,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:45,858 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] [2022-03-01 16:22:45,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 16:22:45,858 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:45,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1922990064, now seen corresponding path program 5 times [2022-03-01 16:22:45,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:45,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900617381] [2022-03-01 16:22:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:46,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:46,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900617381] [2022-03-01 16:22:46,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900617381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:46,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:46,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:22:46,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103603649] [2022-03-01 16:22:46,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:46,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:22:46,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:22:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:22:46,008 INFO L87 Difference]: Start difference. First operand 69175 states and 330863 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:47,798 INFO L93 Difference]: Finished difference Result 128006 states and 590407 transitions. [2022-03-01 16:22:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:22:47,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:47,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:49,254 INFO L225 Difference]: With dead ends: 128006 [2022-03-01 16:22:49,254 INFO L226 Difference]: Without dead ends: 125060 [2022-03-01 16:22:49,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:22:49,255 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 531 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:49,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [531 Valid, 844 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:22:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125060 states. [2022-03-01 16:22:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125060 to 69172. [2022-03-01 16:22:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69172 states, 69171 states have (on average 4.76751817958393) internal successors, (329774), 69171 states have internal predecessors, (329774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69172 states to 69172 states and 329774 transitions. [2022-03-01 16:22:52,735 INFO L78 Accepts]: Start accepts. Automaton has 69172 states and 329774 transitions. Word has length 101 [2022-03-01 16:22:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:52,735 INFO L470 AbstractCegarLoop]: Abstraction has 69172 states and 329774 transitions. [2022-03-01 16:22:52,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 69172 states and 329774 transitions. [2022-03-01 16:22:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:52,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:52,949 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] [2022-03-01 16:22:52,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 16:22:52,949 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:52,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1219880012, now seen corresponding path program 4 times [2022-03-01 16:22:52,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:52,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640774098] [2022-03-01 16:22:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:52,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:53,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:53,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640774098] [2022-03-01 16:22:53,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640774098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:53,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:53,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:22:53,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058154204] [2022-03-01 16:22:53,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:53,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:22:53,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:22:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:22:53,124 INFO L87 Difference]: Start difference. First operand 69172 states and 329774 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:54,682 INFO L93 Difference]: Finished difference Result 110720 states and 505797 transitions. [2022-03-01 16:22:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:22:54,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:22:54,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:55,322 INFO L225 Difference]: With dead ends: 110720 [2022-03-01 16:22:55,322 INFO L226 Difference]: Without dead ends: 109280 [2022-03-01 16:22:55,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:22:55,323 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 298 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:55,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 584 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:22:55,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109280 states. [2022-03-01 16:22:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109280 to 68267. [2022-03-01 16:22:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68267 states, 68266 states have (on average 4.763088506723698) internal successors, (325157), 68266 states have internal predecessors, (325157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68267 states to 68267 states and 325157 transitions. [2022-03-01 16:22:58,493 INFO L78 Accepts]: Start accepts. Automaton has 68267 states and 325157 transitions. Word has length 101 [2022-03-01 16:22:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:58,493 INFO L470 AbstractCegarLoop]: Abstraction has 68267 states and 325157 transitions. [2022-03-01 16:22:58,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 68267 states and 325157 transitions. [2022-03-01 16:22:58,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:22:58,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:58,696 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] [2022-03-01 16:22:58,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 16:22:58,696 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash -194794650, now seen corresponding path program 6 times [2022-03-01 16:22:58,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:58,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742471481] [2022-03-01 16:22:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:58,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:58,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:58,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742471481] [2022-03-01 16:22:58,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742471481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:58,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:58,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:22:58,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43877647] [2022-03-01 16:22:58,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:58,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:22:58,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:58,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:22:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:22:58,873 INFO L87 Difference]: Start difference. First operand 68267 states and 325157 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:00,454 INFO L93 Difference]: Finished difference Result 114839 states and 525788 transitions. [2022-03-01 16:23:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:23:00,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:01,061 INFO L225 Difference]: With dead ends: 114839 [2022-03-01 16:23:01,061 INFO L226 Difference]: Without dead ends: 113783 [2022-03-01 16:23:01,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:23:01,061 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 447 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:01,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 558 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:23:01,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113783 states. [2022-03-01 16:23:03,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113783 to 71003. [2022-03-01 16:23:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71003 states, 71002 states have (on average 4.769372693726937) internal successors, (338635), 71002 states have internal predecessors, (338635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71003 states to 71003 states and 338635 transitions. [2022-03-01 16:23:04,304 INFO L78 Accepts]: Start accepts. Automaton has 71003 states and 338635 transitions. Word has length 101 [2022-03-01 16:23:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:04,304 INFO L470 AbstractCegarLoop]: Abstraction has 71003 states and 338635 transitions. [2022-03-01 16:23:04,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 71003 states and 338635 transitions. [2022-03-01 16:23:04,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:04,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:04,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:04,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 16:23:04,933 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1873068082, now seen corresponding path program 5 times [2022-03-01 16:23:04,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:04,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929523215] [2022-03-01 16:23:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:05,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:05,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929523215] [2022-03-01 16:23:05,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929523215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:05,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:05,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:23:05,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108254725] [2022-03-01 16:23:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:05,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:05,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:23:05,076 INFO L87 Difference]: Start difference. First operand 71003 states and 338635 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:06,403 INFO L93 Difference]: Finished difference Result 111275 states and 515055 transitions. [2022-03-01 16:23:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:23:06,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:07,347 INFO L225 Difference]: With dead ends: 111275 [2022-03-01 16:23:07,348 INFO L226 Difference]: Without dead ends: 110189 [2022-03-01 16:23:07,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:23:07,348 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 373 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:07,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 703 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:23:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110189 states. [2022-03-01 16:23:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110189 to 70441. [2022-03-01 16:23:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70441 states, 70440 states have (on average 4.760022714366837) internal successors, (335296), 70440 states have internal predecessors, (335296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70441 states to 70441 states and 335296 transitions. [2022-03-01 16:23:10,768 INFO L78 Accepts]: Start accepts. Automaton has 70441 states and 335296 transitions. Word has length 101 [2022-03-01 16:23:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:10,768 INFO L470 AbstractCegarLoop]: Abstraction has 70441 states and 335296 transitions. [2022-03-01 16:23:10,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 70441 states and 335296 transitions. [2022-03-01 16:23:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:11,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:11,007 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] [2022-03-01 16:23:11,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 16:23:11,007 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1798939228, now seen corresponding path program 7 times [2022-03-01 16:23:11,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:11,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952691797] [2022-03-01 16:23:11,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:11,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:11,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:11,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952691797] [2022-03-01 16:23:11,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952691797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:11,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:11,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:23:11,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655956651] [2022-03-01 16:23:11,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:11,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:23:11,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:23:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:23:11,195 INFO L87 Difference]: Start difference. First operand 70441 states and 335296 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:13,082 INFO L93 Difference]: Finished difference Result 154148 states and 706415 transitions. [2022-03-01 16:23:13,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 16:23:13,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:13,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:14,928 INFO L225 Difference]: With dead ends: 154148 [2022-03-01 16:23:14,928 INFO L226 Difference]: Without dead ends: 152753 [2022-03-01 16:23:14,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:23:14,930 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 620 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:14,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 795 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:23:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152753 states. [2022-03-01 16:23:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152753 to 68231. [2022-03-01 16:23:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68231 states, 68230 states have (on average 4.757262201377693) internal successors, (324588), 68230 states have internal predecessors, (324588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68231 states to 68231 states and 324588 transitions. [2022-03-01 16:23:19,202 INFO L78 Accepts]: Start accepts. Automaton has 68231 states and 324588 transitions. Word has length 101 [2022-03-01 16:23:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:19,202 INFO L470 AbstractCegarLoop]: Abstraction has 68231 states and 324588 transitions. [2022-03-01 16:23:19,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 68231 states and 324588 transitions. [2022-03-01 16:23:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:19,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:19,793 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] [2022-03-01 16:23:19,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 16:23:19,793 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:19,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:19,793 INFO L85 PathProgramCache]: Analyzing trace with hash 521269194, now seen corresponding path program 8 times [2022-03-01 16:23:19,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:19,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725772622] [2022-03-01 16:23:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:19,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:19,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:19,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725772622] [2022-03-01 16:23:19,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725772622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:19,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:19,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:23:19,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548428735] [2022-03-01 16:23:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:19,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:19,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:23:19,935 INFO L87 Difference]: Start difference. First operand 68231 states and 324588 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:21,062 INFO L93 Difference]: Finished difference Result 94580 states and 432385 transitions. [2022-03-01 16:23:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:23:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:21,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:21,506 INFO L225 Difference]: With dead ends: 94580 [2022-03-01 16:23:21,506 INFO L226 Difference]: Without dead ends: 93218 [2022-03-01 16:23:21,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:23:21,507 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 526 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:21,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 542 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:23:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93218 states. [2022-03-01 16:23:23,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93218 to 69899. [2022-03-01 16:23:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69899 states, 69898 states have (on average 4.749263212109073) internal successors, (331964), 69898 states have internal predecessors, (331964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69899 states to 69899 states and 331964 transitions. [2022-03-01 16:23:24,471 INFO L78 Accepts]: Start accepts. Automaton has 69899 states and 331964 transitions. Word has length 101 [2022-03-01 16:23:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:24,471 INFO L470 AbstractCegarLoop]: Abstraction has 69899 states and 331964 transitions. [2022-03-01 16:23:24,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 69899 states and 331964 transitions. [2022-03-01 16:23:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:24,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:24,674 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] [2022-03-01 16:23:24,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 16:23:24,674 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:24,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:24,674 INFO L85 PathProgramCache]: Analyzing trace with hash 644625612, now seen corresponding path program 4 times [2022-03-01 16:23:24,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:24,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900356264] [2022-03-01 16:23:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:24,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:24,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:24,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900356264] [2022-03-01 16:23:24,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900356264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:24,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:24,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:23:24,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406952937] [2022-03-01 16:23:24,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:24,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:23:24,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:24,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:23:24,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:23:24,773 INFO L87 Difference]: Start difference. First operand 69899 states and 331964 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:26,224 INFO L93 Difference]: Finished difference Result 111761 states and 510503 transitions. [2022-03-01 16:23:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:23:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:26,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:26,813 INFO L225 Difference]: With dead ends: 111761 [2022-03-01 16:23:26,813 INFO L226 Difference]: Without dead ends: 109982 [2022-03-01 16:23:26,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:23:26,814 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 167 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:26,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 424 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:23:27,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109982 states. [2022-03-01 16:23:29,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109982 to 74248. [2022-03-01 16:23:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74248 states, 74247 states have (on average 4.7550608105378) internal successors, (353049), 74247 states have internal predecessors, (353049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74248 states to 74248 states and 353049 transitions. [2022-03-01 16:23:30,020 INFO L78 Accepts]: Start accepts. Automaton has 74248 states and 353049 transitions. Word has length 101 [2022-03-01 16:23:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:30,021 INFO L470 AbstractCegarLoop]: Abstraction has 74248 states and 353049 transitions. [2022-03-01 16:23:30,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 74248 states and 353049 transitions. [2022-03-01 16:23:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:30,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:30,643 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] [2022-03-01 16:23:30,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 16:23:30,643 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -718504682, now seen corresponding path program 5 times [2022-03-01 16:23:30,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:30,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301163995] [2022-03-01 16:23:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:30,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:30,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301163995] [2022-03-01 16:23:30,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301163995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:30,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:30,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:23:30,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932449049] [2022-03-01 16:23:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:30,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:23:30,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:30,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:23:30,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:23:30,762 INFO L87 Difference]: Start difference. First operand 74248 states and 353049 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:32,062 INFO L93 Difference]: Finished difference Result 119075 states and 549553 transitions. [2022-03-01 16:23:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 16:23:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:33,044 INFO L225 Difference]: With dead ends: 119075 [2022-03-01 16:23:33,045 INFO L226 Difference]: Without dead ends: 118283 [2022-03-01 16:23:33,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:23:33,045 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:33,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 849 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:23:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118283 states. [2022-03-01 16:23:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118283 to 80700. [2022-03-01 16:23:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80700 states, 80699 states have (on average 4.783714792004858) internal successors, (386041), 80699 states have internal predecessors, (386041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80700 states to 80700 states and 386041 transitions. [2022-03-01 16:23:36,572 INFO L78 Accepts]: Start accepts. Automaton has 80700 states and 386041 transitions. Word has length 101 [2022-03-01 16:23:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:36,572 INFO L470 AbstractCegarLoop]: Abstraction has 80700 states and 386041 transitions. [2022-03-01 16:23:36,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 80700 states and 386041 transitions. [2022-03-01 16:23:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:37,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:37,197 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] [2022-03-01 16:23:37,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 16:23:37,198 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 899081794, now seen corresponding path program 6 times [2022-03-01 16:23:37,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:37,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325115402] [2022-03-01 16:23:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:37,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:37,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:37,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325115402] [2022-03-01 16:23:37,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325115402] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:23:37,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725028490] [2022-03-01 16:23:37,430 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:23:37,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:23:37,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:23:37,431 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) [2022-03-01 16:23:37,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 16:23:37,526 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-03-01 16:23:37,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:23:37,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-01 16:23:37,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:23:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:37,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:23:37,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725028490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:37,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:23:37,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-03-01 16:23:37,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099207987] [2022-03-01 16:23:37,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:37,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:37,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:37,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:37,940 INFO L87 Difference]: Start difference. First operand 80700 states and 386041 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:39,321 INFO L93 Difference]: Finished difference Result 111284 states and 511716 transitions. [2022-03-01 16:23:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:23:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:40,878 INFO L225 Difference]: With dead ends: 111284 [2022-03-01 16:23:40,878 INFO L226 Difference]: Without dead ends: 110618 [2022-03-01 16:23:40,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:23:40,879 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 469 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:40,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 913 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:23:41,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110618 states. [2022-03-01 16:23:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110618 to 84068. [2022-03-01 16:23:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84068 states, 84067 states have (on average 4.780282393804941) internal successors, (401864), 84067 states have internal predecessors, (401864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84068 states to 84068 states and 401864 transitions. [2022-03-01 16:23:44,898 INFO L78 Accepts]: Start accepts. Automaton has 84068 states and 401864 transitions. Word has length 101 [2022-03-01 16:23:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:44,898 INFO L470 AbstractCegarLoop]: Abstraction has 84068 states and 401864 transitions. [2022-03-01 16:23:44,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand 84068 states and 401864 transitions. [2022-03-01 16:23:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:45,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:45,624 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] [2022-03-01 16:23:45,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 16:23:45,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:23:45,835 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:45,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1460901570, now seen corresponding path program 7 times [2022-03-01 16:23:45,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:45,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362945177] [2022-03-01 16:23:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:45,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:45,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:45,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362945177] [2022-03-01 16:23:45,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362945177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:45,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:45,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:23:45,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012398926] [2022-03-01 16:23:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:45,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:45,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:23:45,951 INFO L87 Difference]: Start difference. First operand 84068 states and 401864 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:47,242 INFO L93 Difference]: Finished difference Result 108916 states and 503887 transitions. [2022-03-01 16:23:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:23:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:48,155 INFO L225 Difference]: With dead ends: 108916 [2022-03-01 16:23:48,155 INFO L226 Difference]: Without dead ends: 108748 [2022-03-01 16:23:48,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:23:48,156 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 337 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:48,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 695 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:23:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108748 states. [2022-03-01 16:23:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108748 to 83519. [2022-03-01 16:23:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83519 states, 83518 states have (on average 4.787973849948514) internal successors, (399882), 83518 states have internal predecessors, (399882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83519 states to 83519 states and 399882 transitions. [2022-03-01 16:23:51,665 INFO L78 Accepts]: Start accepts. Automaton has 83519 states and 399882 transitions. Word has length 101 [2022-03-01 16:23:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:51,665 INFO L470 AbstractCegarLoop]: Abstraction has 83519 states and 399882 transitions. [2022-03-01 16:23:51,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 83519 states and 399882 transitions. [2022-03-01 16:23:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:52,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:52,322 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] [2022-03-01 16:23:52,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 16:23:52,322 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:52,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1913085368, now seen corresponding path program 6 times [2022-03-01 16:23:52,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:52,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136187822] [2022-03-01 16:23:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:52,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:52,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136187822] [2022-03-01 16:23:52,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136187822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:52,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:52,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:23:52,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594905363] [2022-03-01 16:23:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:52,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:52,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:52,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:52,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:23:52,426 INFO L87 Difference]: Start difference. First operand 83519 states and 399882 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:53,713 INFO L93 Difference]: Finished difference Result 113400 states and 533466 transitions. [2022-03-01 16:23:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:23:53,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:23:53,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:54,664 INFO L225 Difference]: With dead ends: 113400 [2022-03-01 16:23:54,664 INFO L226 Difference]: Without dead ends: 110598 [2022-03-01 16:23:54,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:23:54,665 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 377 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:54,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 592 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:23:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110598 states. [2022-03-01 16:23:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110598 to 82693. [2022-03-01 16:23:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82693 states, 82692 states have (on average 4.792241087408697) internal successors, (396280), 82692 states have internal predecessors, (396280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82693 states to 82693 states and 396280 transitions. [2022-03-01 16:23:58,317 INFO L78 Accepts]: Start accepts. Automaton has 82693 states and 396280 transitions. Word has length 101 [2022-03-01 16:23:58,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:58,317 INFO L470 AbstractCegarLoop]: Abstraction has 82693 states and 396280 transitions. [2022-03-01 16:23:58,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 82693 states and 396280 transitions. [2022-03-01 16:23:58,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:23:58,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:58,565 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] [2022-03-01 16:23:58,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 16:23:58,565 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:58,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1302759054, now seen corresponding path program 8 times [2022-03-01 16:23:58,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:58,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632496860] [2022-03-01 16:23:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:59,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:59,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632496860] [2022-03-01 16:23:59,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632496860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:59,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:59,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:23:59,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82133819] [2022-03-01 16:23:59,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:59,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:23:59,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:59,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:23:59,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:23:59,108 INFO L87 Difference]: Start difference. First operand 82693 states and 396280 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:00,484 INFO L93 Difference]: Finished difference Result 120172 states and 558193 transitions. [2022-03-01 16:24:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:24:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:01,523 INFO L225 Difference]: With dead ends: 120172 [2022-03-01 16:24:01,523 INFO L226 Difference]: Without dead ends: 120082 [2022-03-01 16:24:01,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:24:01,524 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 463 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:01,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 553 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:24:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120082 states. [2022-03-01 16:24:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120082 to 83072. [2022-03-01 16:24:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83072 states, 83071 states have (on average 4.798293026447256) internal successors, (398599), 83071 states have internal predecessors, (398599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83072 states to 83072 states and 398599 transitions. [2022-03-01 16:24:05,252 INFO L78 Accepts]: Start accepts. Automaton has 83072 states and 398599 transitions. Word has length 101 [2022-03-01 16:24:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:05,252 INFO L470 AbstractCegarLoop]: Abstraction has 83072 states and 398599 transitions. [2022-03-01 16:24:05,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 83072 states and 398599 transitions. [2022-03-01 16:24:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:06,198 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:06,198 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] [2022-03-01 16:24:06,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 16:24:06,198 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash 36120766, now seen corresponding path program 9 times [2022-03-01 16:24:06,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:06,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043186197] [2022-03-01 16:24:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:06,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:06,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043186197] [2022-03-01 16:24:06,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043186197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:06,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:06,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:24:06,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733162259] [2022-03-01 16:24:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:06,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:24:06,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:06,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:24:06,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:24:06,469 INFO L87 Difference]: Start difference. First operand 83072 states and 398599 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:08,987 INFO L93 Difference]: Finished difference Result 161234 states and 752693 transitions. [2022-03-01 16:24:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 16:24:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:10,332 INFO L225 Difference]: With dead ends: 161234 [2022-03-01 16:24:10,333 INFO L226 Difference]: Without dead ends: 158705 [2022-03-01 16:24:10,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:24:10,333 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 423 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:10,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1010 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:24:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158705 states. [2022-03-01 16:24:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158705 to 84062. [2022-03-01 16:24:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84062 states, 84061 states have (on average 4.80986426523596) internal successors, (404322), 84061 states have internal predecessors, (404322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84062 states to 84062 states and 404322 transitions. [2022-03-01 16:24:15,054 INFO L78 Accepts]: Start accepts. Automaton has 84062 states and 404322 transitions. Word has length 101 [2022-03-01 16:24:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:15,055 INFO L470 AbstractCegarLoop]: Abstraction has 84062 states and 404322 transitions. [2022-03-01 16:24:15,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 84062 states and 404322 transitions. [2022-03-01 16:24:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:15,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:15,307 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] [2022-03-01 16:24:15,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 16:24:15,307 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1927490498, now seen corresponding path program 10 times [2022-03-01 16:24:15,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:15,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313960803] [2022-03-01 16:24:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:15,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:15,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313960803] [2022-03-01 16:24:15,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313960803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:15,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:15,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:24:15,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041084674] [2022-03-01 16:24:15,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:15,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:24:15,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:15,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:24:15,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:24:15,469 INFO L87 Difference]: Start difference. First operand 84062 states and 404322 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:17,075 INFO L93 Difference]: Finished difference Result 120211 states and 557854 transitions. [2022-03-01 16:24:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:24:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:18,080 INFO L225 Difference]: With dead ends: 120211 [2022-03-01 16:24:18,080 INFO L226 Difference]: Without dead ends: 120121 [2022-03-01 16:24:18,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:24:18,081 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 423 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:18,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 507 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:24:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120121 states. [2022-03-01 16:24:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120121 to 83495. [2022-03-01 16:24:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83495 states, 83494 states have (on average 4.808609001844444) internal successors, (401490), 83494 states have internal predecessors, (401490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83495 states to 83495 states and 401490 transitions. [2022-03-01 16:24:21,846 INFO L78 Accepts]: Start accepts. Automaton has 83495 states and 401490 transitions. Word has length 101 [2022-03-01 16:24:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:21,847 INFO L470 AbstractCegarLoop]: Abstraction has 83495 states and 401490 transitions. [2022-03-01 16:24:21,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 83495 states and 401490 transitions. [2022-03-01 16:24:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:22,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:22,114 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] [2022-03-01 16:24:22,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 16:24:22,115 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash 660852210, now seen corresponding path program 11 times [2022-03-01 16:24:22,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:22,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244884105] [2022-03-01 16:24:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:22,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:22,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:22,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244884105] [2022-03-01 16:24:22,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244884105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:22,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:22,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:24:22,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537221583] [2022-03-01 16:24:22,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:22,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:24:22,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:22,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:24:22,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:24:22,685 INFO L87 Difference]: Start difference. First operand 83495 states and 401490 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:25,275 INFO L93 Difference]: Finished difference Result 202242 states and 926888 transitions. [2022-03-01 16:24:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:24:25,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:26,904 INFO L225 Difference]: With dead ends: 202242 [2022-03-01 16:24:26,904 INFO L226 Difference]: Without dead ends: 199860 [2022-03-01 16:24:26,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:24:26,905 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 595 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:26,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [595 Valid, 1500 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:24:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199860 states. [2022-03-01 16:24:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199860 to 82968. [2022-03-01 16:24:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82968 states, 82967 states have (on average 4.7995227017971) internal successors, (398202), 82967 states have internal predecessors, (398202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82968 states to 82968 states and 398202 transitions. [2022-03-01 16:24:32,817 INFO L78 Accepts]: Start accepts. Automaton has 82968 states and 398202 transitions. Word has length 101 [2022-03-01 16:24:32,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:32,818 INFO L470 AbstractCegarLoop]: Abstraction has 82968 states and 398202 transitions. [2022-03-01 16:24:32,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:32,818 INFO L276 IsEmpty]: Start isEmpty. Operand 82968 states and 398202 transitions. [2022-03-01 16:24:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:33,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:33,075 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] [2022-03-01 16:24:33,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 16:24:33,076 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1830885146, now seen corresponding path program 11 times [2022-03-01 16:24:33,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:33,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823248637] [2022-03-01 16:24:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:33,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:33,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823248637] [2022-03-01 16:24:33,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823248637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:33,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:33,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 16:24:33,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128708579] [2022-03-01 16:24:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:33,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:24:33,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:33,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:24:33,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 16:24:33,674 INFO L87 Difference]: Start difference. First operand 82968 states and 398202 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:37,459 INFO L93 Difference]: Finished difference Result 193282 states and 888699 transitions. [2022-03-01 16:24:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 16:24:37,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:37,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:39,864 INFO L225 Difference]: With dead ends: 193282 [2022-03-01 16:24:39,864 INFO L226 Difference]: Without dead ends: 193267 [2022-03-01 16:24:39,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=355, Invalid=1285, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 16:24:39,865 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 688 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:39,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 2081 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 16:24:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193267 states. [2022-03-01 16:24:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193267 to 85214. [2022-03-01 16:24:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85214 states, 85213 states have (on average 4.809148838792203) internal successors, (409802), 85213 states have internal predecessors, (409802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:45,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85214 states to 85214 states and 409802 transitions. [2022-03-01 16:24:45,844 INFO L78 Accepts]: Start accepts. Automaton has 85214 states and 409802 transitions. Word has length 101 [2022-03-01 16:24:45,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:45,844 INFO L470 AbstractCegarLoop]: Abstraction has 85214 states and 409802 transitions. [2022-03-01 16:24:45,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:45,844 INFO L276 IsEmpty]: Start isEmpty. Operand 85214 states and 409802 transitions. [2022-03-01 16:24:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:46,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:46,105 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] [2022-03-01 16:24:46,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 16:24:46,105 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:46,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:46,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1950829904, now seen corresponding path program 12 times [2022-03-01 16:24:46,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:46,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340289897] [2022-03-01 16:24:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:46,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:46,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:46,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:46,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340289897] [2022-03-01 16:24:46,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340289897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:46,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:46,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:24:46,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576923899] [2022-03-01 16:24:46,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:46,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:24:46,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:46,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:24:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:24:46,731 INFO L87 Difference]: Start difference. First operand 85214 states and 409802 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:47,983 INFO L93 Difference]: Finished difference Result 96062 states and 458812 transitions. [2022-03-01 16:24:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 16:24:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:48,752 INFO L225 Difference]: With dead ends: 96062 [2022-03-01 16:24:48,752 INFO L226 Difference]: Without dead ends: 96062 [2022-03-01 16:24:48,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:24:48,752 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 240 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:48,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 808 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:24:48,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96062 states. [2022-03-01 16:24:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96062 to 86998. [2022-03-01 16:24:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86998 states, 86997 states have (on average 4.80729220547835) internal successors, (418220), 86997 states have internal predecessors, (418220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:52,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86998 states to 86998 states and 418220 transitions. [2022-03-01 16:24:52,174 INFO L78 Accepts]: Start accepts. Automaton has 86998 states and 418220 transitions. Word has length 101 [2022-03-01 16:24:52,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:52,174 INFO L470 AbstractCegarLoop]: Abstraction has 86998 states and 418220 transitions. [2022-03-01 16:24:52,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 86998 states and 418220 transitions. [2022-03-01 16:24:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:52,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:52,452 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] [2022-03-01 16:24:52,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 16:24:52,452 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:52,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:52,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1948232730, now seen corresponding path program 12 times [2022-03-01 16:24:52,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:52,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609190942] [2022-03-01 16:24:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:52,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:52,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:52,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609190942] [2022-03-01 16:24:52,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609190942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:52,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:52,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:24:52,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462490284] [2022-03-01 16:24:52,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:52,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:24:52,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:52,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:24:52,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:24:52,581 INFO L87 Difference]: Start difference. First operand 86998 states and 418220 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:54,234 INFO L93 Difference]: Finished difference Result 127790 states and 601044 transitions. [2022-03-01 16:24:54,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:24:54,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:24:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:55,306 INFO L225 Difference]: With dead ends: 127790 [2022-03-01 16:24:55,306 INFO L226 Difference]: Without dead ends: 123593 [2022-03-01 16:24:55,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:24:55,307 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 338 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:55,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 757 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:24:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123593 states. [2022-03-01 16:24:57,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123593 to 79804. [2022-03-01 16:24:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79804 states, 79803 states have (on average 4.80649850256256) internal successors, (383573), 79803 states have internal predecessors, (383573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79804 states to 79804 states and 383573 transitions. [2022-03-01 16:24:58,909 INFO L78 Accepts]: Start accepts. Automaton has 79804 states and 383573 transitions. Word has length 101 [2022-03-01 16:24:58,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:58,910 INFO L470 AbstractCegarLoop]: Abstraction has 79804 states and 383573 transitions. [2022-03-01 16:24:58,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 79804 states and 383573 transitions. [2022-03-01 16:24:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:24:59,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:59,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:59,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 16:24:59,165 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1859933654, now seen corresponding path program 13 times [2022-03-01 16:24:59,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:59,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446564508] [2022-03-01 16:24:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:59,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:59,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:59,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446564508] [2022-03-01 16:24:59,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446564508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:59,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:59,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:24:59,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050463828] [2022-03-01 16:24:59,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:59,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:24:59,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:24:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:24:59,321 INFO L87 Difference]: Start difference. First operand 79804 states and 383573 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:01,051 INFO L93 Difference]: Finished difference Result 103702 states and 489651 transitions. [2022-03-01 16:25:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 16:25:01,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:01,638 INFO L225 Difference]: With dead ends: 103702 [2022-03-01 16:25:01,639 INFO L226 Difference]: Without dead ends: 102577 [2022-03-01 16:25:01,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:01,639 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 288 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:01,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 976 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:25:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102577 states. [2022-03-01 16:25:04,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102577 to 78668. [2022-03-01 16:25:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78668 states, 78667 states have (on average 4.8054457396366965) internal successors, (378030), 78667 states have internal predecessors, (378030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78668 states to 78668 states and 378030 transitions. [2022-03-01 16:25:05,371 INFO L78 Accepts]: Start accepts. Automaton has 78668 states and 378030 transitions. Word has length 101 [2022-03-01 16:25:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:05,371 INFO L470 AbstractCegarLoop]: Abstraction has 78668 states and 378030 transitions. [2022-03-01 16:25:05,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:05,371 INFO L276 IsEmpty]: Start isEmpty. Operand 78668 states and 378030 transitions. [2022-03-01 16:25:05,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:25:05,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:05,723 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] [2022-03-01 16:25:05,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 16:25:05,723 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:05,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash -419595236, now seen corresponding path program 14 times [2022-03-01 16:25:05,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:05,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037655254] [2022-03-01 16:25:05,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:06,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:06,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037655254] [2022-03-01 16:25:06,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037655254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:06,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:06,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 16:25:06,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299653936] [2022-03-01 16:25:06,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:06,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 16:25:06,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 16:25:06,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 16:25:06,036 INFO L87 Difference]: Start difference. First operand 78668 states and 378030 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:08,922 INFO L93 Difference]: Finished difference Result 142523 states and 669574 transitions. [2022-03-01 16:25:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 16:25:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:10,240 INFO L225 Difference]: With dead ends: 142523 [2022-03-01 16:25:10,240 INFO L226 Difference]: Without dead ends: 142445 [2022-03-01 16:25:10,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:25:10,241 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 365 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:10,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 1508 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 16:25:10,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142445 states. [2022-03-01 16:25:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142445 to 77331. [2022-03-01 16:25:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77331 states, 77330 states have (on average 4.795965343333765) internal successors, (370872), 77330 states have internal predecessors, (370872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77331 states to 77331 states and 370872 transitions. [2022-03-01 16:25:14,619 INFO L78 Accepts]: Start accepts. Automaton has 77331 states and 370872 transitions. Word has length 101 [2022-03-01 16:25:14,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:14,619 INFO L470 AbstractCegarLoop]: Abstraction has 77331 states and 370872 transitions. [2022-03-01 16:25:14,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 77331 states and 370872 transitions. [2022-03-01 16:25:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:25:14,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:14,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:14,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 16:25:14,856 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1860075722, now seen corresponding path program 15 times [2022-03-01 16:25:14,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:14,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020185131] [2022-03-01 16:25:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:14,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:15,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:15,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020185131] [2022-03-01 16:25:15,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020185131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:15,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:15,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:25:15,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430858073] [2022-03-01 16:25:15,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:15,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:25:15,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:15,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:25:15,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:25:15,018 INFO L87 Difference]: Start difference. First operand 77331 states and 370872 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:16,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:16,628 INFO L93 Difference]: Finished difference Result 120072 states and 559801 transitions. [2022-03-01 16:25:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:25:16,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:16,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:17,303 INFO L225 Difference]: With dead ends: 120072 [2022-03-01 16:25:17,303 INFO L226 Difference]: Without dead ends: 119349 [2022-03-01 16:25:17,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-03-01 16:25:17,304 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 300 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:17,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 752 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:25:17,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119349 states. [2022-03-01 16:25:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119349 to 75549. [2022-03-01 16:25:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75549 states, 75548 states have (on average 4.781066341928311) internal successors, (361200), 75548 states have internal predecessors, (361200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75549 states to 75549 states and 361200 transitions. [2022-03-01 16:25:21,057 INFO L78 Accepts]: Start accepts. Automaton has 75549 states and 361200 transitions. Word has length 101 [2022-03-01 16:25:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 75549 states and 361200 transitions. [2022-03-01 16:25:21,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 75549 states and 361200 transitions. [2022-03-01 16:25:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:25:21,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:21,298 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] [2022-03-01 16:25:21,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 16:25:21,298 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:21,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1925832130, now seen corresponding path program 16 times [2022-03-01 16:25:21,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:21,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959111601] [2022-03-01 16:25:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:21,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:21,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959111601] [2022-03-01 16:25:21,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959111601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:21,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:21,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 16:25:21,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219283130] [2022-03-01 16:25:21,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:21,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:25:21,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:21,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:25:21,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:25:21,469 INFO L87 Difference]: Start difference. First operand 75549 states and 361200 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:24,064 INFO L93 Difference]: Finished difference Result 168177 states and 777388 transitions. [2022-03-01 16:25:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:25:24,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:25,062 INFO L225 Difference]: With dead ends: 168177 [2022-03-01 16:25:25,062 INFO L226 Difference]: Without dead ends: 167169 [2022-03-01 16:25:25,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:25:25,063 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 645 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:25,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 1029 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:25:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167169 states. [2022-03-01 16:25:29,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167169 to 75397. [2022-03-01 16:25:29,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75397 states, 75396 states have (on average 4.776831662157144) internal successors, (360154), 75396 states have internal predecessors, (360154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75397 states to 75397 states and 360154 transitions. [2022-03-01 16:25:29,801 INFO L78 Accepts]: Start accepts. Automaton has 75397 states and 360154 transitions. Word has length 101 [2022-03-01 16:25:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:29,802 INFO L470 AbstractCegarLoop]: Abstraction has 75397 states and 360154 transitions. [2022-03-01 16:25:29,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 75397 states and 360154 transitions. [2022-03-01 16:25:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:25:30,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:30,770 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] [2022-03-01 16:25:30,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 16:25:30,770 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash -479684052, now seen corresponding path program 17 times [2022-03-01 16:25:30,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:30,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095833284] [2022-03-01 16:25:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:30,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:31,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:31,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095833284] [2022-03-01 16:25:31,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095833284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:31,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:31,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-01 16:25:31,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719753952] [2022-03-01 16:25:31,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:31,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-01 16:25:31,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-01 16:25:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-01 16:25:31,198 INFO L87 Difference]: Start difference. First operand 75397 states and 360154 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:32,836 INFO L93 Difference]: Finished difference Result 109565 states and 510234 transitions. [2022-03-01 16:25:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:25:32,836 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:32,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:33,763 INFO L225 Difference]: With dead ends: 109565 [2022-03-01 16:25:33,763 INFO L226 Difference]: Without dead ends: 109277 [2022-03-01 16:25:33,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-03-01 16:25:33,764 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 453 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:33,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1251 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 16:25:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109277 states. [2022-03-01 16:25:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109277 to 76601. [2022-03-01 16:25:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76601 states, 76600 states have (on average 4.778563968668407) internal successors, (366038), 76600 states have internal predecessors, (366038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76601 states to 76601 states and 366038 transitions. [2022-03-01 16:25:37,198 INFO L78 Accepts]: Start accepts. Automaton has 76601 states and 366038 transitions. Word has length 101 [2022-03-01 16:25:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:37,198 INFO L470 AbstractCegarLoop]: Abstraction has 76601 states and 366038 transitions. [2022-03-01 16:25:37,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 76601 states and 366038 transitions. [2022-03-01 16:25:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-01 16:25:37,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:37,421 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] [2022-03-01 16:25:37,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 16:25:37,422 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1443693090, now seen corresponding path program 18 times [2022-03-01 16:25:37,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:37,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731861582] [2022-03-01 16:25:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:37,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:37,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:37,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731861582] [2022-03-01 16:25:37,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731861582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:37,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:37,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 16:25:37,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878902475] [2022-03-01 16:25:37,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:37,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:25:37,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:37,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:25:37,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-01 16:25:37,620 INFO L87 Difference]: Start difference. First operand 76601 states and 366038 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:39,093 INFO L93 Difference]: Finished difference Result 91709 states and 434945 transitions. [2022-03-01 16:25:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:25:39,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-01 16:25:39,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:39,566 INFO L225 Difference]: With dead ends: 91709 [2022-03-01 16:25:39,566 INFO L226 Difference]: Without dead ends: 89693 [2022-03-01 16:25:39,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:25:39,566 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 194 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:39,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 782 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 16:25:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89693 states. [2022-03-01 16:25:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89693 to 73685. [2022-03-01 16:25:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73685 states, 73684 states have (on average 4.771442918408338) internal successors, (351579), 73684 states have internal predecessors, (351579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:42,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73685 states to 73685 states and 351579 transitions. [2022-03-01 16:25:42,668 INFO L78 Accepts]: Start accepts. Automaton has 73685 states and 351579 transitions. Word has length 101 [2022-03-01 16:25:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:42,668 INFO L470 AbstractCegarLoop]: Abstraction has 73685 states and 351579 transitions. [2022-03-01 16:25:42,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 73685 states and 351579 transitions. [2022-03-01 16:25:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-01 16:25:42,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:42,897 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] [2022-03-01 16:25:42,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 16:25:42,897 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:42,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2016603415, now seen corresponding path program 1 times [2022-03-01 16:25:42,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:42,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334182759] [2022-03-01 16:25:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:43,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:43,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334182759] [2022-03-01 16:25:43,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334182759] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:25:43,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605436917] [2022-03-01 16:25:43,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:43,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:25:43,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:25:43,239 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) [2022-03-01 16:25:43,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 16:25:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:43,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-01 16:25:43,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:25:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:50,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:25:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:52,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605436917] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:25:52,323 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:25:52,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2022-03-01 16:25:52,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195940197] [2022-03-01 16:25:52,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:25:52,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 16:25:52,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 16:25:52,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=616, Unknown=1, NotChecked=0, Total=756 [2022-03-01 16:25:52,324 INFO L87 Difference]: Start difference. First operand 73685 states and 351579 transitions. Second operand has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:26:05,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:26:05,159 INFO L93 Difference]: Finished difference Result 415525 states and 1904801 transitions. [2022-03-01 16:26:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-01 16:26:05,160 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 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 104 [2022-03-01 16:26:05,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:26:08,892 INFO L225 Difference]: With dead ends: 415525 [2022-03-01 16:26:08,892 INFO L226 Difference]: Without dead ends: 389263 [2022-03-01 16:26:08,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 191 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2461 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1804, Invalid=6205, Unknown=1, NotChecked=0, Total=8010 [2022-03-01 16:26:08,894 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1857 mSDsluCounter, 6013 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 5750 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 408 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:26:08,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1857 Valid, 5750 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2188 Invalid, 0 Unknown, 408 Unchecked, 2.2s Time] [2022-03-01 16:26:09,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389263 states. [2022-03-01 16:26:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389263 to 101892. [2022-03-01 16:26:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101892 states, 101891 states have (on average 4.794309605362593) internal successors, (488497), 101891 states have internal predecessors, (488497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:26:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101892 states to 101892 states and 488497 transitions. [2022-03-01 16:26:21,082 INFO L78 Accepts]: Start accepts. Automaton has 101892 states and 488497 transitions. Word has length 104 [2022-03-01 16:26:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:26:21,082 INFO L470 AbstractCegarLoop]: Abstraction has 101892 states and 488497 transitions. [2022-03-01 16:26:21,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:26:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 101892 states and 488497 transitions. [2022-03-01 16:26:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-01 16:26:21,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:26:21,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:26:21,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 16:26:21,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:26:21,932 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:26:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:26:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1476725079, now seen corresponding path program 1 times [2022-03-01 16:26:21,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:26:21,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686364728] [2022-03-01 16:26:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:26:21,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:26:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:26:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:26:22,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:26:22,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686364728] [2022-03-01 16:26:22,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686364728] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:26:22,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037676955] [2022-03-01 16:26:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:26:22,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:26:22,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:26:22,116 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) [2022-03-01 16:26:22,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 16:26:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:26:22,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-01 16:26:22,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:26:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:26:22,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:26:23,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:26:23,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037676955] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:26:23,383 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:26:23,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 27 [2022-03-01 16:26:23,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696648036] [2022-03-01 16:26:23,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:26:23,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-01 16:26:23,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:26:23,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-01 16:26:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:26:23,384 INFO L87 Difference]: Start difference. First operand 101892 states and 488497 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:26:52,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:26:52,400 INFO L93 Difference]: Finished difference Result 757367 states and 3459733 transitions. [2022-03-01 16:26:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 429 states. [2022-03-01 16:26:52,401 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 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 104 [2022-03-01 16:26:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:27:00,413 INFO L225 Difference]: With dead ends: 757367 [2022-03-01 16:27:00,413 INFO L226 Difference]: Without dead ends: 740318 [2022-03-01 16:27:00,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88919 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=25164, Invalid=168876, Unknown=0, NotChecked=0, Total=194040 [2022-03-01 16:27:00,428 INFO L933 BasicCegarLoop]: 795 mSDtfsCounter, 5199 mSDsluCounter, 10231 mSDsCounter, 0 mSdLazyCounter, 5432 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5199 SdHoareTripleChecker+Valid, 9974 SdHoareTripleChecker+Invalid, 6178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 5432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:27:00,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5199 Valid, 9974 Invalid, 6178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 5432 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-01 16:27:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740318 states. [2022-03-01 16:27:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740318 to 159068. [2022-03-01 16:27:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159068 states, 159067 states have (on average 4.880295724443159) internal successors, (776294), 159067 states have internal predecessors, (776294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:27:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159068 states to 159068 states and 776294 transitions. [2022-03-01 16:27:29,807 INFO L78 Accepts]: Start accepts. Automaton has 159068 states and 776294 transitions. Word has length 104 [2022-03-01 16:27:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:27:29,807 INFO L470 AbstractCegarLoop]: Abstraction has 159068 states and 776294 transitions. [2022-03-01 16:27:29,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:27:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 159068 states and 776294 transitions. [2022-03-01 16:27:30,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-01 16:27:30,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:27:30,792 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] [2022-03-01 16:27:30,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 16:27:31,015 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,SelfDestructingSolverStorable47 [2022-03-01 16:27:31,015 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:27:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:27:31,016 INFO L85 PathProgramCache]: Analyzing trace with hash -561403401, now seen corresponding path program 2 times [2022-03-01 16:27:31,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:27:31,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292567462] [2022-03-01 16:27:31,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:27:31,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:27:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:27:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:27:31,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:27:31,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292567462] [2022-03-01 16:27:31,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292567462] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:27:31,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855407769] [2022-03-01 16:27:31,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:27:31,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:27:31,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:27:31,308 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) [2022-03-01 16:27:31,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 16:27:31,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:27:31,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:27:31,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-01 16:27:31,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:27:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:27:32,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:27:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:27:32,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855407769] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:27:32,782 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:27:32,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 36 [2022-03-01 16:27:32,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683032549] [2022-03-01 16:27:32,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:27:32,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-01 16:27:32,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:27:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-01 16:27:32,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2022-03-01 16:27:32,784 INFO L87 Difference]: Start difference. First operand 159068 states and 776294 transitions. Second operand has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 36 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)