/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/popl20-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 14:40:52,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:40:52,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:40:52,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 14:40:52,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 14:40:52,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 14:40:52,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 14:40:52,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 14:40:52,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 14:40:52,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 14:40:52,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 14:40:52,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 14:40:52,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 14:40:52,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 14:40:52,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 14:40:52,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 14:40:52,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 14:40:52,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 14:40:52,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 14:40:52,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 14:40:52,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 14:40:52,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 14:40:52,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 14:40:52,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 14:40:52,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 14:40:52,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:40:52,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:40:52,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:40:52,868 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 [2022-02-18 14:40:52,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:40:52,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:40:52,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:40:52,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:40:52,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:40:52,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:40:52,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:40:52,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:40:52,897 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:40:52,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:40:52,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:40:52,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:40:52,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:40:52,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:40:52,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:40:52,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:40:53,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:40:53,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:40:53,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:40:53,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:40:53,095 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:40:53,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-02-18 14:40:53,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d8a291d/899d83b00e6f4b9fb1387cb279225373/FLAG3d730b645 [2022-02-18 14:40:53,524 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:40:53,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-02-18 14:40:53,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d8a291d/899d83b00e6f4b9fb1387cb279225373/FLAG3d730b645 [2022-02-18 14:40:53,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00d8a291d/899d83b00e6f4b9fb1387cb279225373 [2022-02-18 14:40:53,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:40:53,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:40:53,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:40:53,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:40:53,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:40:53,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e512077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53, skipping insertion in model container [2022-02-18 14:40:53,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:40:53,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:40:53,751 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/popl20-more-buffer-mult2.wvr.c[4099,4112] [2022-02-18 14:40:53,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:40:53,762 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:40:53,789 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/popl20-more-buffer-mult2.wvr.c[4099,4112] [2022-02-18 14:40:53,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:40:53,808 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:40:53,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53 WrapperNode [2022-02-18 14:40:53,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:40:53,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:40:53,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:40:53,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:40:53,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,839 INFO L137 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 303 [2022-02-18 14:40:53,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:40:53,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:40:53,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:40:53,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:40:53,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:40:53,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:40:53,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:40:53,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:40:53,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (1/1) ... [2022-02-18 14:40:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:40:53,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:40:53,918 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) [2022-02-18 14:40:53,920 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 [2022-02-18 14:40:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:40:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:40:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:40:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:40:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:40:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:40:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:40:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:40:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 14:40:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-18 14:40:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:40:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:40:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:40:53,956 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:40:54,036 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:40:54,037 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:40:54,375 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:40:54,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:40:54,502 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-18 14:40:54,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:40:54 BoogieIcfgContainer [2022-02-18 14:40:54,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:40:54,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:40:54,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:40:54,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:40:54,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:40:53" (1/3) ... [2022-02-18 14:40:54,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e48447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:40:54, skipping insertion in model container [2022-02-18 14:40:54,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:40:53" (2/3) ... [2022-02-18 14:40:54,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e48447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:40:54, skipping insertion in model container [2022-02-18 14:40:54,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:40:54" (3/3) ... [2022-02-18 14:40:54,513 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2022-02-18 14:40:54,516 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:40:54,517 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:40:54,517 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:40:54,517 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:40:54,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,554 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,555 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,556 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,557 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,557 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,558 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,558 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,558 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,559 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,559 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,560 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,560 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,560 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,560 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,561 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,562 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,563 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,564 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,565 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,565 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,565 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,566 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,566 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,566 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,566 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,566 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,567 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,567 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,569 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,572 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,572 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,572 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,573 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,574 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,575 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,575 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,576 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,576 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,580 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,580 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,580 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,581 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,584 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:40:54,590 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-18 14:40:54,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:40:54,629 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 [2022-02-18 14:40:54,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-18 14:40:54,639 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 224 places, 229 transitions, 490 flow [2022-02-18 14:40:55,095 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-18 14:40:55,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:55,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:55,205 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)] === [2022-02-18 14:40:55,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:55,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1073124122, now seen corresponding path program 1 times [2022-02-18 14:40:55,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:55,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109709163] [2022-02-18 14:40:55,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:55,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:55,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:55,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109709163] [2022-02-18 14:40:55,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109709163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:55,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:55,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:40:55,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626552334] [2022-02-18 14:40:55,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:55,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:40:55,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:55,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:40:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:40:55,512 INFO L87 Difference]: Start difference. First operand has 13335 states, 13334 states have (on average 4.988150592470377) internal successors, (66512), 13334 states have internal predecessors, (66512), 0 states have call successors, (0), 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 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:55,772 INFO L93 Difference]: Finished difference Result 13335 states and 59558 transitions. [2022-02-18 14:40:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:40:55,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-02-18 14:40:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:55,887 INFO L225 Difference]: With dead ends: 13335 [2022-02-18 14:40:55,887 INFO L226 Difference]: Without dead ends: 13329 [2022-02-18 14:40:55,888 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 [2022-02-18 14:40:55,890 INFO L933 BasicCegarLoop]: 188 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, 188 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 [2022-02-18 14:40:55,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:40:55,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13329 states. [2022-02-18 14:40:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13329 to 13329. [2022-02-18 14:40:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13329 states, 13328 states have (on average 4.468187274909964) internal successors, (59552), 13328 states have internal predecessors, (59552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13329 states to 13329 states and 59552 transitions. [2022-02-18 14:40:56,525 INFO L78 Accepts]: Start accepts. Automaton has 13329 states and 59552 transitions. Word has length 168 [2022-02-18 14:40:56,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:56,526 INFO L470 AbstractCegarLoop]: Abstraction has 13329 states and 59552 transitions. [2022-02-18 14:40:56,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:56,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13329 states and 59552 transitions. [2022-02-18 14:40:56,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-18 14:40:56,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:56,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:56,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:40:56,677 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)] === [2022-02-18 14:40:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1639336348, now seen corresponding path program 1 times [2022-02-18 14:40:56,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:56,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631589917] [2022-02-18 14:40:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:56,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:57,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:57,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631589917] [2022-02-18 14:40:57,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631589917] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:57,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:57,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:40:57,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052393967] [2022-02-18 14:40:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:57,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:40:57,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:40:57,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:40:57,111 INFO L87 Difference]: Start difference. First operand 13329 states and 59552 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:57,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:57,555 INFO L93 Difference]: Finished difference Result 22523 states and 101314 transitions. [2022-02-18 14:40:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:40:57,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2022-02-18 14:40:57,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:57,674 INFO L225 Difference]: With dead ends: 22523 [2022-02-18 14:40:57,674 INFO L226 Difference]: Without dead ends: 20528 [2022-02-18 14:40:57,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:40:57,677 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 26 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:57,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 578 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:40:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20528 states. [2022-02-18 14:40:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20528 to 17811. [2022-02-18 14:40:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17811 states, 17810 states have (on average 4.470971364402021) internal successors, (79628), 17810 states have internal predecessors, (79628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17811 states to 17811 states and 79628 transitions. [2022-02-18 14:40:58,520 INFO L78 Accepts]: Start accepts. Automaton has 17811 states and 79628 transitions. Word has length 168 [2022-02-18 14:40:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:40:58,524 INFO L470 AbstractCegarLoop]: Abstraction has 17811 states and 79628 transitions. [2022-02-18 14:40:58,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 17811 states and 79628 transitions. [2022-02-18 14:40:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-18 14:40:58,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:40:58,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:40:58,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:40:58,603 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)] === [2022-02-18 14:40:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:40:58,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1549721869, now seen corresponding path program 1 times [2022-02-18 14:40:58,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:40:58,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682275432] [2022-02-18 14:40:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:40:58,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:40:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:40:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:40:58,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:40:58,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682275432] [2022-02-18 14:40:58,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682275432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:40:58,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:40:58,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:40:58,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586501603] [2022-02-18 14:40:58,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:40:58,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:40:58,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:40:58,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:40:58,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:40:58,691 INFO L87 Difference]: Start difference. First operand 17811 states and 79628 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:40:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:40:58,975 INFO L93 Difference]: Finished difference Result 27518 states and 121690 transitions. [2022-02-18 14:40:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:40:58,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2022-02-18 14:40:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:40:59,190 INFO L225 Difference]: With dead ends: 27518 [2022-02-18 14:40:59,190 INFO L226 Difference]: Without dead ends: 25988 [2022-02-18 14:40:59,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:40:59,192 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 36 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:40:59,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 275 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:40:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25988 states. [2022-02-18 14:40:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25988 to 21389. [2022-02-18 14:40:59,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21389 states, 21388 states have (on average 4.462081541051057) internal successors, (95435), 21388 states have internal predecessors, (95435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21389 states to 21389 states and 95435 transitions. [2022-02-18 14:41:00,044 INFO L78 Accepts]: Start accepts. Automaton has 21389 states and 95435 transitions. Word has length 171 [2022-02-18 14:41:00,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:00,045 INFO L470 AbstractCegarLoop]: Abstraction has 21389 states and 95435 transitions. [2022-02-18 14:41:00,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 21389 states and 95435 transitions. [2022-02-18 14:41:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-18 14:41:00,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:00,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:00,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 14:41:00,113 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)] === [2022-02-18 14:41:00,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:00,114 INFO L85 PathProgramCache]: Analyzing trace with hash 670846327, now seen corresponding path program 1 times [2022-02-18 14:41:00,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:00,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536318633] [2022-02-18 14:41:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:00,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:41:00,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:00,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536318633] [2022-02-18 14:41:00,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536318633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:00,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:00,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:41:00,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826423953] [2022-02-18 14:41:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:00,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:41:00,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:00,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:41:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:41:00,198 INFO L87 Difference]: Start difference. First operand 21389 states and 95435 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:00,570 INFO L93 Difference]: Finished difference Result 32705 states and 143710 transitions. [2022-02-18 14:41:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:41:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2022-02-18 14:41:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:00,678 INFO L225 Difference]: With dead ends: 32705 [2022-02-18 14:41:00,679 INFO L226 Difference]: Without dead ends: 30560 [2022-02-18 14:41:00,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:41:00,680 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:00,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 282 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:41:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30560 states. [2022-02-18 14:41:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30560 to 26690. [2022-02-18 14:41:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26690 states, 26689 states have (on average 4.411855071377722) internal successors, (117748), 26689 states have internal predecessors, (117748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:01,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26690 states to 26690 states and 117748 transitions. [2022-02-18 14:41:01,706 INFO L78 Accepts]: Start accepts. Automaton has 26690 states and 117748 transitions. Word has length 171 [2022-02-18 14:41:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:01,707 INFO L470 AbstractCegarLoop]: Abstraction has 26690 states and 117748 transitions. [2022-02-18 14:41:01,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 26690 states and 117748 transitions. [2022-02-18 14:41:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-18 14:41:01,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:01,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:01,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 14:41:01,804 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)] === [2022-02-18 14:41:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -506008106, now seen corresponding path program 1 times [2022-02-18 14:41:01,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:01,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460310431] [2022-02-18 14:41:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:01,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:01,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460310431] [2022-02-18 14:41:01,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460310431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:01,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:01,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:41:01,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368540898] [2022-02-18 14:41:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:01,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:41:01,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:41:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:41:01,873 INFO L87 Difference]: Start difference. First operand 26690 states and 117748 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:02,437 INFO L93 Difference]: Finished difference Result 38942 states and 167822 transitions. [2022-02-18 14:41:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:02,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2022-02-18 14:41:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:02,572 INFO L225 Difference]: With dead ends: 38942 [2022-02-18 14:41:02,572 INFO L226 Difference]: Without dead ends: 35189 [2022-02-18 14:41:02,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:41:02,574 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 439 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:02,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 637 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35189 states. [2022-02-18 14:41:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35189 to 30072. [2022-02-18 14:41:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30072 states, 30071 states have (on average 4.391706295101593) internal successors, (132063), 30071 states have internal predecessors, (132063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30072 states to 30072 states and 132063 transitions. [2022-02-18 14:41:03,573 INFO L78 Accepts]: Start accepts. Automaton has 30072 states and 132063 transitions. Word has length 174 [2022-02-18 14:41:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:03,574 INFO L470 AbstractCegarLoop]: Abstraction has 30072 states and 132063 transitions. [2022-02-18 14:41:03,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 30072 states and 132063 transitions. [2022-02-18 14:41:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-18 14:41:03,644 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:03,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:03,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 14:41:03,644 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)] === [2022-02-18 14:41:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 976100160, now seen corresponding path program 1 times [2022-02-18 14:41:03,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:03,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716171688] [2022-02-18 14:41:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:03,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:03,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:03,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716171688] [2022-02-18 14:41:03,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716171688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:03,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:03,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:41:03,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167979637] [2022-02-18 14:41:03,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:03,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:41:03,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:41:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:41:03,725 INFO L87 Difference]: Start difference. First operand 30072 states and 132063 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:04,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:04,251 INFO L93 Difference]: Finished difference Result 42238 states and 181429 transitions. [2022-02-18 14:41:04,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:41:04,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2022-02-18 14:41:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:04,423 INFO L225 Difference]: With dead ends: 42238 [2022-02-18 14:41:04,423 INFO L226 Difference]: Without dead ends: 38485 [2022-02-18 14:41:04,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:41:04,425 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 177 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:04,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 631 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38485 states. [2022-02-18 14:41:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38485 to 33062. [2022-02-18 14:41:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 33061 states have (on average 4.378845164998034) internal successors, (144769), 33061 states have internal predecessors, (144769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 144769 transitions. [2022-02-18 14:41:05,527 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 144769 transitions. Word has length 174 [2022-02-18 14:41:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:05,528 INFO L470 AbstractCegarLoop]: Abstraction has 33062 states and 144769 transitions. [2022-02-18 14:41:05,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 144769 transitions. [2022-02-18 14:41:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:05,604 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:05,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:05,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 14:41:05,604 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)] === [2022-02-18 14:41:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash -342805233, now seen corresponding path program 1 times [2022-02-18 14:41:05,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:05,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810174594] [2022-02-18 14:41:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:05,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:06,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:06,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810174594] [2022-02-18 14:41:06,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810174594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:06,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:06,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:41:06,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044853619] [2022-02-18 14:41:06,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:06,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:41:06,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:06,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:41:06,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:06,006 INFO L87 Difference]: Start difference. First operand 33062 states and 144769 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:06,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:06,413 INFO L93 Difference]: Finished difference Result 38783 states and 167854 transitions. [2022-02-18 14:41:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:41:06,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:06,543 INFO L225 Difference]: With dead ends: 38783 [2022-02-18 14:41:06,543 INFO L226 Difference]: Without dead ends: 38099 [2022-02-18 14:41:06,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:41:06,545 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 516 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:06,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 923 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:06,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38099 states. [2022-02-18 14:41:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38099 to 32954. [2022-02-18 14:41:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32954 states, 32953 states have (on average 4.377810821473007) internal successors, (144262), 32953 states have internal predecessors, (144262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32954 states to 32954 states and 144262 transitions. [2022-02-18 14:41:07,704 INFO L78 Accepts]: Start accepts. Automaton has 32954 states and 144262 transitions. Word has length 181 [2022-02-18 14:41:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:07,704 INFO L470 AbstractCegarLoop]: Abstraction has 32954 states and 144262 transitions. [2022-02-18 14:41:07,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 32954 states and 144262 transitions. [2022-02-18 14:41:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:07,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:07,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:07,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 14:41:07,789 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)] === [2022-02-18 14:41:07,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:07,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1721272917, now seen corresponding path program 2 times [2022-02-18 14:41:07,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:07,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090917931] [2022-02-18 14:41:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:08,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:08,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090917931] [2022-02-18 14:41:08,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090917931] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:08,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623556495] [2022-02-18 14:41:08,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:41:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:08,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:08,298 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) [2022-02-18 14:41:08,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:41:08,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:08,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:08,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:41:08,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:09,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:41:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:09,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623556495] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:09,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:41:09,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-18 14:41:09,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681053936] [2022-02-18 14:41:09,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:09,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:09,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:09,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:09,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:41:09,410 INFO L87 Difference]: Start difference. First operand 32954 states and 144262 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:10,076 INFO L93 Difference]: Finished difference Result 57113 states and 242912 transitions. [2022-02-18 14:41:10,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:41:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:10,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:10,296 INFO L225 Difference]: With dead ends: 57113 [2022-02-18 14:41:10,297 INFO L226 Difference]: Without dead ends: 55841 [2022-02-18 14:41:10,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:41:10,297 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 632 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:10,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 862 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55841 states. [2022-02-18 14:41:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55841 to 35260. [2022-02-18 14:41:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35260 states, 35259 states have (on average 4.411838112255027) internal successors, (155557), 35259 states have internal predecessors, (155557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35260 states to 35260 states and 155557 transitions. [2022-02-18 14:41:11,721 INFO L78 Accepts]: Start accepts. Automaton has 35260 states and 155557 transitions. Word has length 181 [2022-02-18 14:41:11,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:11,721 INFO L470 AbstractCegarLoop]: Abstraction has 35260 states and 155557 transitions. [2022-02-18 14:41:11,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:11,722 INFO L276 IsEmpty]: Start isEmpty. Operand 35260 states and 155557 transitions. [2022-02-18 14:41:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:11,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:11,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:11,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-18 14:41:12,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:12,028 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)] === [2022-02-18 14:41:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:12,030 INFO L85 PathProgramCache]: Analyzing trace with hash -484338227, now seen corresponding path program 3 times [2022-02-18 14:41:12,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:12,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795629547] [2022-02-18 14:41:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:12,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:12,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795629547] [2022-02-18 14:41:12,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795629547] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:12,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:12,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:41:12,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420813580] [2022-02-18 14:41:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:12,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:41:12,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:41:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:12,591 INFO L87 Difference]: Start difference. First operand 35260 states and 155557 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:13,068 INFO L93 Difference]: Finished difference Result 41368 states and 179312 transitions. [2022-02-18 14:41:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:13,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:13,217 INFO L225 Difference]: With dead ends: 41368 [2022-02-18 14:41:13,217 INFO L226 Difference]: Without dead ends: 40585 [2022-02-18 14:41:13,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:41:13,217 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 517 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:13,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 967 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:13,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40585 states. [2022-02-18 14:41:14,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40585 to 35196. [2022-02-18 14:41:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35196 states, 35195 states have (on average 4.409518397499645) internal successors, (155193), 35195 states have internal predecessors, (155193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 155193 transitions. [2022-02-18 14:41:14,531 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 155193 transitions. Word has length 181 [2022-02-18 14:41:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:14,532 INFO L470 AbstractCegarLoop]: Abstraction has 35196 states and 155193 transitions. [2022-02-18 14:41:14,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 155193 transitions. [2022-02-18 14:41:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:14,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:14,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:14,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 14:41:14,618 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)] === [2022-02-18 14:41:14,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1706007281, now seen corresponding path program 4 times [2022-02-18 14:41:14,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:14,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849517724] [2022-02-18 14:41:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:14,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:14,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:14,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849517724] [2022-02-18 14:41:14,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849517724] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:14,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783656834] [2022-02-18 14:41:14,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:41:14,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:14,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:14,999 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) [2022-02-18 14:41:15,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:41:15,138 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:41:15,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:15,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 14:41:15,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:15,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:41:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:16,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783656834] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:16,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:41:16,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-18 14:41:16,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586437908] [2022-02-18 14:41:16,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:16,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:41:16,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:41:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:41:16,143 INFO L87 Difference]: Start difference. First operand 35196 states and 155193 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:17,132 INFO L93 Difference]: Finished difference Result 69691 states and 295926 transitions. [2022-02-18 14:41:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 14:41:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:17,414 INFO L225 Difference]: With dead ends: 69691 [2022-02-18 14:41:17,414 INFO L226 Difference]: Without dead ends: 66171 [2022-02-18 14:41:17,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 14:41:17,415 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1500 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:17,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 1132 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:17,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66171 states. [2022-02-18 14:41:18,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66171 to 33140. [2022-02-18 14:41:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33140 states, 33139 states have (on average 4.3826307371978634) internal successors, (145236), 33139 states have internal predecessors, (145236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33140 states to 33140 states and 145236 transitions. [2022-02-18 14:41:18,871 INFO L78 Accepts]: Start accepts. Automaton has 33140 states and 145236 transitions. Word has length 181 [2022-02-18 14:41:18,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:18,872 INFO L470 AbstractCegarLoop]: Abstraction has 33140 states and 145236 transitions. [2022-02-18 14:41:18,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:18,872 INFO L276 IsEmpty]: Start isEmpty. Operand 33140 states and 145236 transitions. [2022-02-18 14:41:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:18,951 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:18,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:18,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:19,168 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,SelfDestructingSolverStorable9 [2022-02-18 14:41:19,169 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)] === [2022-02-18 14:41:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1482240685, now seen corresponding path program 5 times [2022-02-18 14:41:19,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:19,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290793156] [2022-02-18 14:41:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:19,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:19,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:19,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290793156] [2022-02-18 14:41:19,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290793156] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:19,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74117355] [2022-02-18 14:41:19,694 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:41:19,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:19,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:19,697 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) [2022-02-18 14:41:19,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:41:19,820 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:19,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:19,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 14:41:19,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:20,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:41:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:20,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74117355] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:20,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:41:20,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-02-18 14:41:20,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168101842] [2022-02-18 14:41:20,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:20,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:41:20,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:20,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:41:20,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:41:20,843 INFO L87 Difference]: Start difference. First operand 33140 states and 145236 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:22,021 INFO L93 Difference]: Finished difference Result 65487 states and 277086 transitions. [2022-02-18 14:41:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:41:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:22,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:22,300 INFO L225 Difference]: With dead ends: 65487 [2022-02-18 14:41:22,300 INFO L226 Difference]: Without dead ends: 64411 [2022-02-18 14:41:22,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=284, Invalid=1276, Unknown=0, NotChecked=0, Total=1560 [2022-02-18 14:41:22,301 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 1715 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:22,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 1158 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-18 14:41:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64411 states. [2022-02-18 14:41:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64411 to 31330. [2022-02-18 14:41:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31330 states, 31329 states have (on average 4.351623096811261) internal successors, (136332), 31329 states have internal predecessors, (136332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31330 states to 31330 states and 136332 transitions. [2022-02-18 14:41:23,759 INFO L78 Accepts]: Start accepts. Automaton has 31330 states and 136332 transitions. Word has length 181 [2022-02-18 14:41:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:23,759 INFO L470 AbstractCegarLoop]: Abstraction has 31330 states and 136332 transitions. [2022-02-18 14:41:23,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 9 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 31330 states and 136332 transitions. [2022-02-18 14:41:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:23,840 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:23,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:23,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-18 14:41:24,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:24,058 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)] === [2022-02-18 14:41:24,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1575791921, now seen corresponding path program 6 times [2022-02-18 14:41:24,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:24,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532912655] [2022-02-18 14:41:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:24,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:24,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532912655] [2022-02-18 14:41:24,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532912655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:24,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:24,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:41:24,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339199874] [2022-02-18 14:41:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:24,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:24,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:24,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:24,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:24,234 INFO L87 Difference]: Start difference. First operand 31330 states and 136332 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:24,977 INFO L93 Difference]: Finished difference Result 34787 states and 151296 transitions. [2022-02-18 14:41:24,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:41:24,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:24,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:25,100 INFO L225 Difference]: With dead ends: 34787 [2022-02-18 14:41:25,101 INFO L226 Difference]: Without dead ends: 34111 [2022-02-18 14:41:25,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:41:25,101 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 361 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:25,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 946 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:25,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34111 states. [2022-02-18 14:41:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34111 to 28825. [2022-02-18 14:41:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28825 states, 28824 states have (on average 4.389432417429919) internal successors, (126521), 28824 states have internal predecessors, (126521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28825 states to 28825 states and 126521 transitions. [2022-02-18 14:41:26,467 INFO L78 Accepts]: Start accepts. Automaton has 28825 states and 126521 transitions. Word has length 181 [2022-02-18 14:41:26,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:26,467 INFO L470 AbstractCegarLoop]: Abstraction has 28825 states and 126521 transitions. [2022-02-18 14:41:26,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 28825 states and 126521 transitions. [2022-02-18 14:41:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:26,550 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:26,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:26,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 14:41:26,550 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)] === [2022-02-18 14:41:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash -802313301, now seen corresponding path program 1 times [2022-02-18 14:41:26,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:26,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950982888] [2022-02-18 14:41:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:26,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:26,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:26,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950982888] [2022-02-18 14:41:26,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950982888] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:26,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950318998] [2022-02-18 14:41:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:26,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:26,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:26,700 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) [2022-02-18 14:41:26,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:41:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:26,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-18 14:41:26,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:27,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:41:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:41:27,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950318998] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:41:27,909 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:41:27,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 11] total 21 [2022-02-18 14:41:27,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041635915] [2022-02-18 14:41:27,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:41:27,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:41:27,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:27,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:41:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:41:27,911 INFO L87 Difference]: Start difference. First operand 28825 states and 126521 transitions. Second operand has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:30,396 INFO L93 Difference]: Finished difference Result 75725 states and 321758 transitions. [2022-02-18 14:41:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-18 14:41:30,397 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:30,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:30,728 INFO L225 Difference]: With dead ends: 75725 [2022-02-18 14:41:30,728 INFO L226 Difference]: Without dead ends: 71287 [2022-02-18 14:41:30,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=988, Invalid=3982, Unknown=0, NotChecked=0, Total=4970 [2022-02-18 14:41:30,729 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 2079 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:30,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2079 Valid, 3665 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:41:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71287 states. [2022-02-18 14:41:32,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71287 to 30564. [2022-02-18 14:41:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30564 states, 30563 states have (on average 4.41651670320322) internal successors, (134982), 30563 states have internal predecessors, (134982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30564 states to 30564 states and 134982 transitions. [2022-02-18 14:41:32,310 INFO L78 Accepts]: Start accepts. Automaton has 30564 states and 134982 transitions. Word has length 181 [2022-02-18 14:41:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:32,310 INFO L470 AbstractCegarLoop]: Abstraction has 30564 states and 134982 transitions. [2022-02-18 14:41:32,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 21.238095238095237) internal successors, (446), 21 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 30564 states and 134982 transitions. [2022-02-18 14:41:32,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:32,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:32,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:32,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-18 14:41:32,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:32,610 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)] === [2022-02-18 14:41:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:32,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1876789873, now seen corresponding path program 2 times [2022-02-18 14:41:32,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:32,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378383092] [2022-02-18 14:41:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:32,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:32,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:32,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378383092] [2022-02-18 14:41:32,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378383092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:32,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:32,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:41:32,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171883493] [2022-02-18 14:41:32,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:32,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:41:32,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:32,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:41:32,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:32,837 INFO L87 Difference]: Start difference. First operand 30564 states and 134982 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:33,575 INFO L93 Difference]: Finished difference Result 38020 states and 165661 transitions. [2022-02-18 14:41:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:41:33,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:33,725 INFO L225 Difference]: With dead ends: 38020 [2022-02-18 14:41:33,725 INFO L226 Difference]: Without dead ends: 36358 [2022-02-18 14:41:33,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:41:33,726 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 564 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:33,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 1018 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:33,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36358 states. [2022-02-18 14:41:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36358 to 30390. [2022-02-18 14:41:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30390 states, 30389 states have (on average 4.421994800750271) internal successors, (134380), 30389 states have internal predecessors, (134380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30390 states to 30390 states and 134380 transitions. [2022-02-18 14:41:34,857 INFO L78 Accepts]: Start accepts. Automaton has 30390 states and 134380 transitions. Word has length 181 [2022-02-18 14:41:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:34,857 INFO L470 AbstractCegarLoop]: Abstraction has 30390 states and 134380 transitions. [2022-02-18 14:41:34,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 30390 states and 134380 transitions. [2022-02-18 14:41:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:34,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:34,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:34,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-18 14:41:34,935 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)] === [2022-02-18 14:41:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash 252097369, now seen corresponding path program 3 times [2022-02-18 14:41:34,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:34,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377577229] [2022-02-18 14:41:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:34,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:35,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:35,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377577229] [2022-02-18 14:41:35,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377577229] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:35,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347511073] [2022-02-18 14:41:35,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:41:35,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:35,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:35,092 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) [2022-02-18 14:41:35,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 14:41:35,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:41:35,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:35,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:41:35,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:35,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:35,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347511073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:35,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:35,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-18 14:41:35,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512585552] [2022-02-18 14:41:35,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:35,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:35,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:35,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:41:35,769 INFO L87 Difference]: Start difference. First operand 30390 states and 134380 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:36,369 INFO L93 Difference]: Finished difference Result 40602 states and 176542 transitions. [2022-02-18 14:41:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:41:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:36,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:36,532 INFO L225 Difference]: With dead ends: 40602 [2022-02-18 14:41:36,533 INFO L226 Difference]: Without dead ends: 40098 [2022-02-18 14:41:36,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:41:36,535 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 479 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:36,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 880 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40098 states. [2022-02-18 14:41:37,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40098 to 32364. [2022-02-18 14:41:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32364 states, 32363 states have (on average 4.422365046503724) internal successors, (143121), 32363 states have internal predecessors, (143121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32364 states to 32364 states and 143121 transitions. [2022-02-18 14:41:37,598 INFO L78 Accepts]: Start accepts. Automaton has 32364 states and 143121 transitions. Word has length 181 [2022-02-18 14:41:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:37,599 INFO L470 AbstractCegarLoop]: Abstraction has 32364 states and 143121 transitions. [2022-02-18 14:41:37,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 32364 states and 143121 transitions. [2022-02-18 14:41:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:37,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:37,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:37,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:38,121 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,SelfDestructingSolverStorable14 [2022-02-18 14:41:38,122 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)] === [2022-02-18 14:41:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash -549754431, now seen corresponding path program 4 times [2022-02-18 14:41:38,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:38,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486774699] [2022-02-18 14:41:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:38,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:38,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486774699] [2022-02-18 14:41:38,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486774699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:38,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:38,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 14:41:38,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098966131] [2022-02-18 14:41:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:38,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:38,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:38,306 INFO L87 Difference]: Start difference. First operand 32364 states and 143121 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:38,749 INFO L93 Difference]: Finished difference Result 37486 states and 162721 transitions. [2022-02-18 14:41:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:41:38,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:38,898 INFO L225 Difference]: With dead ends: 37486 [2022-02-18 14:41:38,898 INFO L226 Difference]: Without dead ends: 37234 [2022-02-18 14:41:38,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:41:38,900 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 363 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:38,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1037 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37234 states. [2022-02-18 14:41:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37234 to 32112. [2022-02-18 14:41:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32112 states, 32111 states have (on average 4.4229703216966145) internal successors, (142026), 32111 states have internal predecessors, (142026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:40,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32112 states to 32112 states and 142026 transitions. [2022-02-18 14:41:40,057 INFO L78 Accepts]: Start accepts. Automaton has 32112 states and 142026 transitions. Word has length 181 [2022-02-18 14:41:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:40,058 INFO L470 AbstractCegarLoop]: Abstraction has 32112 states and 142026 transitions. [2022-02-18 14:41:40,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 32112 states and 142026 transitions. [2022-02-18 14:41:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-18 14:41:40,143 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:40,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:40,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-18 14:41:40,144 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)] === [2022-02-18 14:41:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash 785336179, now seen corresponding path program 5 times [2022-02-18 14:41:40,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:40,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869917082] [2022-02-18 14:41:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:40,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:40,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869917082] [2022-02-18 14:41:40,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869917082] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:40,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950377151] [2022-02-18 14:41:40,256 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:41:40,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:40,268 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) [2022-02-18 14:41:40,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 14:41:40,379 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:40,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:40,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 14:41:40,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:41:40,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:40,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950377151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:40,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:40,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-02-18 14:41:40,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872015662] [2022-02-18 14:41:40,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:40,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:41:40,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:41:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:41:40,975 INFO L87 Difference]: Start difference. First operand 32112 states and 142026 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:41,595 INFO L93 Difference]: Finished difference Result 43592 states and 191684 transitions. [2022-02-18 14:41:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:41:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-02-18 14:41:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:41,774 INFO L225 Difference]: With dead ends: 43592 [2022-02-18 14:41:41,774 INFO L226 Difference]: Without dead ends: 41831 [2022-02-18 14:41:41,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:41:41,775 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 459 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:41,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 934 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:41,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41831 states. [2022-02-18 14:41:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41831 to 24955. [2022-02-18 14:41:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24955 states, 24954 states have (on average 4.44241404183698) internal successors, (110856), 24954 states have internal predecessors, (110856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24955 states to 24955 states and 110856 transitions. [2022-02-18 14:41:42,939 INFO L78 Accepts]: Start accepts. Automaton has 24955 states and 110856 transitions. Word has length 181 [2022-02-18 14:41:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:42,939 INFO L470 AbstractCegarLoop]: Abstraction has 24955 states and 110856 transitions. [2022-02-18 14:41:42,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24955 states and 110856 transitions. [2022-02-18 14:41:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:43,012 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:43,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:43,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:43,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-18 14:41:43,231 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)] === [2022-02-18 14:41:43,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1807237333, now seen corresponding path program 1 times [2022-02-18 14:41:43,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:43,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200619014] [2022-02-18 14:41:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:43,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:43,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200619014] [2022-02-18 14:41:43,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200619014] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:43,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951452826] [2022-02-18 14:41:43,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:43,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:43,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:43,298 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:43,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 14:41:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:43,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 14:41:43,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:43,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:43,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951452826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:43,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:43,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2022-02-18 14:41:43,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771430438] [2022-02-18 14:41:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:43,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:41:43,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:41:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:43,750 INFO L87 Difference]: Start difference. First operand 24955 states and 110856 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:44,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:44,426 INFO L93 Difference]: Finished difference Result 55543 states and 250657 transitions. [2022-02-18 14:41:44,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:44,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:44,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:44,747 INFO L225 Difference]: With dead ends: 55543 [2022-02-18 14:41:44,747 INFO L226 Difference]: Without dead ends: 55543 [2022-02-18 14:41:44,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:41:44,747 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 202 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:44,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 961 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55543 states. [2022-02-18 14:41:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55543 to 33145. [2022-02-18 14:41:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33145 states, 33144 states have (on average 4.507301472363022) internal successors, (149390), 33144 states have internal predecessors, (149390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33145 states to 33145 states and 149390 transitions. [2022-02-18 14:41:46,227 INFO L78 Accepts]: Start accepts. Automaton has 33145 states and 149390 transitions. Word has length 191 [2022-02-18 14:41:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:46,228 INFO L470 AbstractCegarLoop]: Abstraction has 33145 states and 149390 transitions. [2022-02-18 14:41:46,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 33145 states and 149390 transitions. [2022-02-18 14:41:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:46,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:46,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:46,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:46,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:46,537 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)] === [2022-02-18 14:41:46,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1608854421, now seen corresponding path program 1 times [2022-02-18 14:41:46,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:46,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161450164] [2022-02-18 14:41:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:46,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:46,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:46,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:46,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161450164] [2022-02-18 14:41:46,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161450164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:46,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:46,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:46,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271143991] [2022-02-18 14:41:46,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:46,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:46,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:46,619 INFO L87 Difference]: Start difference. First operand 33145 states and 149390 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:47,402 INFO L93 Difference]: Finished difference Result 57844 states and 259988 transitions. [2022-02-18 14:41:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:47,749 INFO L225 Difference]: With dead ends: 57844 [2022-02-18 14:41:47,749 INFO L226 Difference]: Without dead ends: 57844 [2022-02-18 14:41:47,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:47,750 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 160 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:47,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 708 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57844 states. [2022-02-18 14:41:49,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57844 to 34807. [2022-02-18 14:41:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34807 states, 34806 states have (on average 4.49350686663219) internal successors, (156401), 34806 states have internal predecessors, (156401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34807 states to 34807 states and 156401 transitions. [2022-02-18 14:41:49,284 INFO L78 Accepts]: Start accepts. Automaton has 34807 states and 156401 transitions. Word has length 191 [2022-02-18 14:41:49,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:49,284 INFO L470 AbstractCegarLoop]: Abstraction has 34807 states and 156401 transitions. [2022-02-18 14:41:49,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 34807 states and 156401 transitions. [2022-02-18 14:41:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:49,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:49,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:49,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-18 14:41:49,381 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)] === [2022-02-18 14:41:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1603809585, now seen corresponding path program 2 times [2022-02-18 14:41:49,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:49,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636868172] [2022-02-18 14:41:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:49,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:49,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636868172] [2022-02-18 14:41:49,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636868172] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:49,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819545314] [2022-02-18 14:41:49,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:41:49,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:49,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:49,456 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:49,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 14:41:49,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:49,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:49,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-18 14:41:49,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:49,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:49,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819545314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:49,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:49,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-02-18 14:41:49,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277815265] [2022-02-18 14:41:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:49,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:49,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-18 14:41:49,842 INFO L87 Difference]: Start difference. First operand 34807 states and 156401 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:50,462 INFO L93 Difference]: Finished difference Result 54991 states and 249676 transitions. [2022-02-18 14:41:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:41:50,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:50,716 INFO L225 Difference]: With dead ends: 54991 [2022-02-18 14:41:50,716 INFO L226 Difference]: Without dead ends: 54991 [2022-02-18 14:41:50,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:41:50,717 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 185 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:50,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 639 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54991 states. [2022-02-18 14:41:51,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54991 to 27706. [2022-02-18 14:41:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27706 states, 27705 states have (on average 4.479155387114239) internal successors, (124095), 27705 states have internal predecessors, (124095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27706 states to 27706 states and 124095 transitions. [2022-02-18 14:41:51,966 INFO L78 Accepts]: Start accepts. Automaton has 27706 states and 124095 transitions. Word has length 191 [2022-02-18 14:41:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:51,966 INFO L470 AbstractCegarLoop]: Abstraction has 27706 states and 124095 transitions. [2022-02-18 14:41:51,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 27706 states and 124095 transitions. [2022-02-18 14:41:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:52,034 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:52,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:52,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 14:41:52,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:52,251 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)] === [2022-02-18 14:41:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1125789345, now seen corresponding path program 3 times [2022-02-18 14:41:52,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:52,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201120391] [2022-02-18 14:41:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:52,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:52,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201120391] [2022-02-18 14:41:52,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201120391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:52,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:52,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:52,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054118780] [2022-02-18 14:41:52,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:52,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:52,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:52,353 INFO L87 Difference]: Start difference. First operand 27706 states and 124095 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:52,968 INFO L93 Difference]: Finished difference Result 40394 states and 182886 transitions. [2022-02-18 14:41:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:41:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:53,158 INFO L225 Difference]: With dead ends: 40394 [2022-02-18 14:41:53,158 INFO L226 Difference]: Without dead ends: 40394 [2022-02-18 14:41:53,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:41:53,159 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 138 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:53,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 870 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40394 states. [2022-02-18 14:41:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40394 to 27656. [2022-02-18 14:41:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27656 states, 27655 states have (on average 4.483384559754113) internal successors, (123988), 27655 states have internal predecessors, (123988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27656 states to 27656 states and 123988 transitions. [2022-02-18 14:41:54,121 INFO L78 Accepts]: Start accepts. Automaton has 27656 states and 123988 transitions. Word has length 191 [2022-02-18 14:41:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:54,121 INFO L470 AbstractCegarLoop]: Abstraction has 27656 states and 123988 transitions. [2022-02-18 14:41:54,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:54,122 INFO L276 IsEmpty]: Start isEmpty. Operand 27656 states and 123988 transitions. [2022-02-18 14:41:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:54,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:54,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:54,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-18 14:41:54,402 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)] === [2022-02-18 14:41:54,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1172309895, now seen corresponding path program 4 times [2022-02-18 14:41:54,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:54,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472144547] [2022-02-18 14:41:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:54,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:54,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:54,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472144547] [2022-02-18 14:41:54,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472144547] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:54,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:41:54,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:41:54,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136922242] [2022-02-18 14:41:54,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:54,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:41:54,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:41:54,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:54,583 INFO L87 Difference]: Start difference. First operand 27656 states and 123988 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:54,894 INFO L93 Difference]: Finished difference Result 35679 states and 161136 transitions. [2022-02-18 14:41:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:41:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:55,030 INFO L225 Difference]: With dead ends: 35679 [2022-02-18 14:41:55,031 INFO L226 Difference]: Without dead ends: 34842 [2022-02-18 14:41:55,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:41:55,032 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 150 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:55,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 579 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:41:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34842 states. [2022-02-18 14:41:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34842 to 31841. [2022-02-18 14:41:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31841 states, 31840 states have (on average 4.517179648241206) internal successors, (143827), 31840 states have internal predecessors, (143827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31841 states to 31841 states and 143827 transitions. [2022-02-18 14:41:56,183 INFO L78 Accepts]: Start accepts. Automaton has 31841 states and 143827 transitions. Word has length 191 [2022-02-18 14:41:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:41:56,183 INFO L470 AbstractCegarLoop]: Abstraction has 31841 states and 143827 transitions. [2022-02-18 14:41:56,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:56,183 INFO L276 IsEmpty]: Start isEmpty. Operand 31841 states and 143827 transitions. [2022-02-18 14:41:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:41:56,264 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:41:56,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:41:56,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-18 14:41:56,265 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)] === [2022-02-18 14:41:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:41:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2094986821, now seen corresponding path program 5 times [2022-02-18 14:41:56,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:41:56,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981189634] [2022-02-18 14:41:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:41:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:41:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:41:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:41:56,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:41:56,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981189634] [2022-02-18 14:41:56,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981189634] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:41:56,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771052783] [2022-02-18 14:41:56,401 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:41:56,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:41:56,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:41:56,403 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:41:56,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 14:41:56,518 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:41:56,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:41:56,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-18 14:41:56,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:41:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:41:56,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:41:56,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771052783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:41:56,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:41:56,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-18 14:41:56,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892955491] [2022-02-18 14:41:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:41:56,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:41:56,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:41:56,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:41:56,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:41:56,999 INFO L87 Difference]: Start difference. First operand 31841 states and 143827 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:41:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:41:57,830 INFO L93 Difference]: Finished difference Result 67129 states and 304387 transitions. [2022-02-18 14:41:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:41:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:41:57,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:41:58,350 INFO L225 Difference]: With dead ends: 67129 [2022-02-18 14:41:58,350 INFO L226 Difference]: Without dead ends: 67129 [2022-02-18 14:41:58,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:41:58,351 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 212 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:41:58,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 944 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:41:58,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67129 states. [2022-02-18 14:41:59,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67129 to 43421. [2022-02-18 14:41:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43421 states, 43420 states have (on average 4.64207738369415) internal successors, (201559), 43420 states have internal predecessors, (201559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43421 states to 43421 states and 201559 transitions. [2022-02-18 14:42:00,059 INFO L78 Accepts]: Start accepts. Automaton has 43421 states and 201559 transitions. Word has length 191 [2022-02-18 14:42:00,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:00,075 INFO L470 AbstractCegarLoop]: Abstraction has 43421 states and 201559 transitions. [2022-02-18 14:42:00,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 43421 states and 201559 transitions. [2022-02-18 14:42:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:00,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:00,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:00,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:00,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:00,403 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)] === [2022-02-18 14:42:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:00,403 INFO L85 PathProgramCache]: Analyzing trace with hash 619101395, now seen corresponding path program 6 times [2022-02-18 14:42:00,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:00,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528691275] [2022-02-18 14:42:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:00,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:00,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528691275] [2022-02-18 14:42:00,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528691275] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:00,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:00,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:00,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91473946] [2022-02-18 14:42:00,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:00,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:00,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:00,494 INFO L87 Difference]: Start difference. First operand 43421 states and 201559 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:01,312 INFO L93 Difference]: Finished difference Result 66111 states and 309334 transitions. [2022-02-18 14:42:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:01,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:01,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:01,627 INFO L225 Difference]: With dead ends: 66111 [2022-02-18 14:42:01,628 INFO L226 Difference]: Without dead ends: 66111 [2022-02-18 14:42:01,628 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 [2022-02-18 14:42:01,629 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 142 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:01,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 849 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66111 states. [2022-02-18 14:42:02,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66111 to 31027. [2022-02-18 14:42:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31027 states, 31026 states have (on average 4.506542899503642) internal successors, (139820), 31026 states have internal predecessors, (139820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31027 states to 31027 states and 139820 transitions. [2022-02-18 14:42:03,110 INFO L78 Accepts]: Start accepts. Automaton has 31027 states and 139820 transitions. Word has length 191 [2022-02-18 14:42:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:03,111 INFO L470 AbstractCegarLoop]: Abstraction has 31027 states and 139820 transitions. [2022-02-18 14:42:03,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 31027 states and 139820 transitions. [2022-02-18 14:42:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:03,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:03,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:03,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-18 14:42:03,187 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)] === [2022-02-18 14:42:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:03,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1639049219, now seen corresponding path program 7 times [2022-02-18 14:42:03,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:03,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864658432] [2022-02-18 14:42:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:03,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:03,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:03,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864658432] [2022-02-18 14:42:03,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864658432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:03,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:03,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:03,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605918666] [2022-02-18 14:42:03,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:03,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:03,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:03,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:03,304 INFO L87 Difference]: Start difference. First operand 31027 states and 139820 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:03,988 INFO L93 Difference]: Finished difference Result 48912 states and 218408 transitions. [2022-02-18 14:42:03,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:03,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:03,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:04,180 INFO L225 Difference]: With dead ends: 48912 [2022-02-18 14:42:04,181 INFO L226 Difference]: Without dead ends: 48075 [2022-02-18 14:42:04,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:04,182 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 114 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:04,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 623 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48075 states. [2022-02-18 14:42:05,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48075 to 30860. [2022-02-18 14:42:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30860 states, 30859 states have (on average 4.484461583330633) internal successors, (138386), 30859 states have internal predecessors, (138386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30860 states to 30860 states and 138386 transitions. [2022-02-18 14:42:05,417 INFO L78 Accepts]: Start accepts. Automaton has 30860 states and 138386 transitions. Word has length 191 [2022-02-18 14:42:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:05,417 INFO L470 AbstractCegarLoop]: Abstraction has 30860 states and 138386 transitions. [2022-02-18 14:42:05,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 30860 states and 138386 transitions. [2022-02-18 14:42:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:05,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:05,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:05,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-18 14:42:05,488 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)] === [2022-02-18 14:42:05,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash -716372293, now seen corresponding path program 8 times [2022-02-18 14:42:05,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:05,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239728404] [2022-02-18 14:42:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:05,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:05,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:05,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239728404] [2022-02-18 14:42:05,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239728404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:05,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:05,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:05,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764472285] [2022-02-18 14:42:05,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:05,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:05,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:05,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:05,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:05,598 INFO L87 Difference]: Start difference. First operand 30860 states and 138386 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:06,277 INFO L93 Difference]: Finished difference Result 56888 states and 255016 transitions. [2022-02-18 14:42:06,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:06,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:06,521 INFO L225 Difference]: With dead ends: 56888 [2022-02-18 14:42:06,522 INFO L226 Difference]: Without dead ends: 56888 [2022-02-18 14:42:06,523 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 [2022-02-18 14:42:06,524 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 164 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:06,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 830 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56888 states. [2022-02-18 14:42:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56888 to 29476. [2022-02-18 14:42:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29476 states, 29475 states have (on average 4.4247667514843085) internal successors, (130420), 29475 states have internal predecessors, (130420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29476 states to 29476 states and 130420 transitions. [2022-02-18 14:42:07,728 INFO L78 Accepts]: Start accepts. Automaton has 29476 states and 130420 transitions. Word has length 191 [2022-02-18 14:42:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:07,729 INFO L470 AbstractCegarLoop]: Abstraction has 29476 states and 130420 transitions. [2022-02-18 14:42:07,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 29476 states and 130420 transitions. [2022-02-18 14:42:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:07,797 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:07,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:07,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-18 14:42:07,798 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)] === [2022-02-18 14:42:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:07,798 INFO L85 PathProgramCache]: Analyzing trace with hash -743899039, now seen corresponding path program 9 times [2022-02-18 14:42:07,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:07,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270487271] [2022-02-18 14:42:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:07,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:07,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:07,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270487271] [2022-02-18 14:42:07,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270487271] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:07,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130778899] [2022-02-18 14:42:07,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:42:07,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:07,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:07,962 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:07,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 14:42:08,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:42:08,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:08,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-18 14:42:08,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:08,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:42:08,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130778899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:08,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:42:08,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-18 14:42:08,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539772707] [2022-02-18 14:42:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:08,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:42:08,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:08,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:42:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:42:08,427 INFO L87 Difference]: Start difference. First operand 29476 states and 130420 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:09,386 INFO L93 Difference]: Finished difference Result 65677 states and 290726 transitions. [2022-02-18 14:42:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:09,845 INFO L225 Difference]: With dead ends: 65677 [2022-02-18 14:42:09,845 INFO L226 Difference]: Without dead ends: 65047 [2022-02-18 14:42:09,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-18 14:42:09,846 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 162 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:09,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 771 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65047 states. [2022-02-18 14:42:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65047 to 38296. [2022-02-18 14:42:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38296 states, 38295 states have (on average 4.493275884580233) internal successors, (172070), 38295 states have internal predecessors, (172070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38296 states to 38296 states and 172070 transitions. [2022-02-18 14:42:11,363 INFO L78 Accepts]: Start accepts. Automaton has 38296 states and 172070 transitions. Word has length 191 [2022-02-18 14:42:11,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:11,363 INFO L470 AbstractCegarLoop]: Abstraction has 38296 states and 172070 transitions. [2022-02-18 14:42:11,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 38296 states and 172070 transitions. [2022-02-18 14:42:11,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:11,452 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:11,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:11,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:11,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-18 14:42:11,669 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)] === [2022-02-18 14:42:11,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:11,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1104552797, now seen corresponding path program 10 times [2022-02-18 14:42:11,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:11,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415189877] [2022-02-18 14:42:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:11,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:12,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:12,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415189877] [2022-02-18 14:42:12,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415189877] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:12,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081644205] [2022-02-18 14:42:12,104 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:42:12,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:12,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:12,124 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:12,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 14:42:12,271 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:42:12,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:12,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-18 14:42:12,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:12,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:42:12,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081644205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:12,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:42:12,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-02-18 14:42:12,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112212333] [2022-02-18 14:42:12,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:12,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:42:12,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:12,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:42:12,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-18 14:42:12,571 INFO L87 Difference]: Start difference. First operand 38296 states and 172070 transitions. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:12,926 INFO L93 Difference]: Finished difference Result 38008 states and 169961 transitions. [2022-02-18 14:42:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:12,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:13,068 INFO L225 Difference]: With dead ends: 38008 [2022-02-18 14:42:13,068 INFO L226 Difference]: Without dead ends: 35686 [2022-02-18 14:42:13,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:42:13,069 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 91 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:13,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 866 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:13,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35686 states. [2022-02-18 14:42:14,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35686 to 35067. [2022-02-18 14:42:14,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35067 states, 35066 states have (on average 4.498659670335938) internal successors, (157750), 35066 states have internal predecessors, (157750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35067 states to 35067 states and 157750 transitions. [2022-02-18 14:42:14,453 INFO L78 Accepts]: Start accepts. Automaton has 35067 states and 157750 transitions. Word has length 191 [2022-02-18 14:42:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:14,453 INFO L470 AbstractCegarLoop]: Abstraction has 35067 states and 157750 transitions. [2022-02-18 14:42:14,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 35067 states and 157750 transitions. [2022-02-18 14:42:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:14,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:14,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:14,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-18 14:42:14,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-02-18 14:42:14,756 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)] === [2022-02-18 14:42:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1465224997, now seen corresponding path program 2 times [2022-02-18 14:42:14,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:14,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74123454] [2022-02-18 14:42:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:14,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:14,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:14,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74123454] [2022-02-18 14:42:14,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74123454] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:14,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507308243] [2022-02-18 14:42:14,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:42:14,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:14,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:14,894 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 14:42:15,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:42:15,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:15,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-18 14:42:15,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:15,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:42:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:16,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507308243] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:42:16,200 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:42:16,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 21 [2022-02-18 14:42:16,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941160762] [2022-02-18 14:42:16,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:42:16,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:42:16,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:42:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:42:16,202 INFO L87 Difference]: Start difference. First operand 35067 states and 157750 transitions. Second operand has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:20,028 INFO L93 Difference]: Finished difference Result 103702 states and 464719 transitions. [2022-02-18 14:42:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-18 14:42:20,028 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:20,556 INFO L225 Difference]: With dead ends: 103702 [2022-02-18 14:42:20,556 INFO L226 Difference]: Without dead ends: 103702 [2022-02-18 14:42:20,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3868 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2161, Invalid=8759, Unknown=0, NotChecked=0, Total=10920 [2022-02-18 14:42:20,559 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1347 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:20,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1347 Valid, 4715 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-18 14:42:20,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103702 states. [2022-02-18 14:42:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103702 to 34681. [2022-02-18 14:42:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34681 states, 34680 states have (on average 4.494579008073818) internal successors, (155872), 34680 states have internal predecessors, (155872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34681 states to 34681 states and 155872 transitions. [2022-02-18 14:42:22,584 INFO L78 Accepts]: Start accepts. Automaton has 34681 states and 155872 transitions. Word has length 191 [2022-02-18 14:42:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:22,584 INFO L470 AbstractCegarLoop]: Abstraction has 34681 states and 155872 transitions. [2022-02-18 14:42:22,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.761904761904763) internal successors, (373), 21 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 34681 states and 155872 transitions. [2022-02-18 14:42:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:22,673 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:22,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:22,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:22,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-02-18 14:42:22,888 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)] === [2022-02-18 14:42:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1862057839, now seen corresponding path program 3 times [2022-02-18 14:42:22,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:22,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612597440] [2022-02-18 14:42:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:22,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:23,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:23,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612597440] [2022-02-18 14:42:23,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612597440] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:23,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556333210] [2022-02-18 14:42:23,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:42:23,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:23,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:23,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 14:42:23,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:42:23,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:42:23,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:42:23,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:23,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:42:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:24,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556333210] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:24,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-18 14:42:24,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-02-18 14:42:24,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957022376] [2022-02-18 14:42:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:24,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 14:42:24,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 14:42:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-02-18 14:42:24,295 INFO L87 Difference]: Start difference. First operand 34681 states and 155872 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:25,350 INFO L93 Difference]: Finished difference Result 72916 states and 317953 transitions. [2022-02-18 14:42:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:42:25,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:25,899 INFO L225 Difference]: With dead ends: 72916 [2022-02-18 14:42:25,899 INFO L226 Difference]: Without dead ends: 72916 [2022-02-18 14:42:25,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:42:25,900 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 474 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:25,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 1044 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72916 states. [2022-02-18 14:42:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72916 to 34852. [2022-02-18 14:42:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34852 states, 34851 states have (on average 4.498264038334624) internal successors, (156769), 34851 states have internal predecessors, (156769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:27,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34852 states to 34852 states and 156769 transitions. [2022-02-18 14:42:27,567 INFO L78 Accepts]: Start accepts. Automaton has 34852 states and 156769 transitions. Word has length 191 [2022-02-18 14:42:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:27,568 INFO L470 AbstractCegarLoop]: Abstraction has 34852 states and 156769 transitions. [2022-02-18 14:42:27,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 34852 states and 156769 transitions. [2022-02-18 14:42:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:27,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:27,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:27,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-18 14:42:27,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:27,872 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)] === [2022-02-18 14:42:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1181755445, now seen corresponding path program 4 times [2022-02-18 14:42:27,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:27,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589614987] [2022-02-18 14:42:27,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:27,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:28,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:28,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589614987] [2022-02-18 14:42:28,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589614987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:28,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:28,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:42:28,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802835527] [2022-02-18 14:42:28,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:28,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:42:28,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:42:28,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:42:28,085 INFO L87 Difference]: Start difference. First operand 34852 states and 156769 transitions. Second operand has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:28,725 INFO L93 Difference]: Finished difference Result 36266 states and 162630 transitions. [2022-02-18 14:42:28,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:42:28,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:28,886 INFO L225 Difference]: With dead ends: 36266 [2022-02-18 14:42:28,886 INFO L226 Difference]: Without dead ends: 36266 [2022-02-18 14:42:28,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:42:28,887 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 215 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:28,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 878 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36266 states. [2022-02-18 14:42:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36266 to 34948. [2022-02-18 14:42:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34948 states, 34947 states have (on average 4.498955561278508) internal successors, (157225), 34947 states have internal predecessors, (157225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34948 states to 34948 states and 157225 transitions. [2022-02-18 14:42:29,826 INFO L78 Accepts]: Start accepts. Automaton has 34948 states and 157225 transitions. Word has length 191 [2022-02-18 14:42:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:29,827 INFO L470 AbstractCegarLoop]: Abstraction has 34948 states and 157225 transitions. [2022-02-18 14:42:29,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:29,827 INFO L276 IsEmpty]: Start isEmpty. Operand 34948 states and 157225 transitions. [2022-02-18 14:42:29,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:29,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:29,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:29,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-18 14:42:29,909 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)] === [2022-02-18 14:42:29,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:29,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1496921081, now seen corresponding path program 5 times [2022-02-18 14:42:29,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:29,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856624329] [2022-02-18 14:42:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:29,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:30,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:30,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856624329] [2022-02-18 14:42:30,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856624329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:30,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:30,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:42:30,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748370621] [2022-02-18 14:42:30,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:30,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:42:30,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:42:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:42:30,322 INFO L87 Difference]: Start difference. First operand 34948 states and 157225 transitions. Second operand has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:30,759 INFO L93 Difference]: Finished difference Result 36929 states and 164979 transitions. [2022-02-18 14:42:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:42:30,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:30,904 INFO L225 Difference]: With dead ends: 36929 [2022-02-18 14:42:30,905 INFO L226 Difference]: Without dead ends: 36929 [2022-02-18 14:42:30,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:42:30,905 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 240 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:30,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 972 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36929 states. [2022-02-18 14:42:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36929 to 35025. [2022-02-18 14:42:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35025 states, 35024 states have (on average 4.497116263133851) internal successors, (157507), 35024 states have internal predecessors, (157507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35025 states to 35025 states and 157507 transitions. [2022-02-18 14:42:32,109 INFO L78 Accepts]: Start accepts. Automaton has 35025 states and 157507 transitions. Word has length 191 [2022-02-18 14:42:32,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:32,109 INFO L470 AbstractCegarLoop]: Abstraction has 35025 states and 157507 transitions. [2022-02-18 14:42:32,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:32,110 INFO L276 IsEmpty]: Start isEmpty. Operand 35025 states and 157507 transitions. [2022-02-18 14:42:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:32,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:32,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:32,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-18 14:42:32,203 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)] === [2022-02-18 14:42:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1375315421, now seen corresponding path program 6 times [2022-02-18 14:42:32,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:32,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736609956] [2022-02-18 14:42:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:32,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:32,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736609956] [2022-02-18 14:42:32,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736609956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:32,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:32,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:32,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170047201] [2022-02-18 14:42:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:32,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:32,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:32,310 INFO L87 Difference]: Start difference. First operand 35025 states and 157507 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:32,876 INFO L93 Difference]: Finished difference Result 44893 states and 202327 transitions. [2022-02-18 14:42:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:32,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:33,125 INFO L225 Difference]: With dead ends: 44893 [2022-02-18 14:42:33,125 INFO L226 Difference]: Without dead ends: 43903 [2022-02-18 14:42:33,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:33,126 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 128 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:33,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 473 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:33,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43903 states. [2022-02-18 14:42:34,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43903 to 40155. [2022-02-18 14:42:34,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40155 states, 40154 states have (on average 4.514817950889077) internal successors, (181288), 40154 states have internal predecessors, (181288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40155 states to 40155 states and 181288 transitions. [2022-02-18 14:42:34,575 INFO L78 Accepts]: Start accepts. Automaton has 40155 states and 181288 transitions. Word has length 191 [2022-02-18 14:42:34,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:34,575 INFO L470 AbstractCegarLoop]: Abstraction has 40155 states and 181288 transitions. [2022-02-18 14:42:34,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:34,575 INFO L276 IsEmpty]: Start isEmpty. Operand 40155 states and 181288 transitions. [2022-02-18 14:42:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:34,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:34,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:34,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-18 14:42:34,677 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)] === [2022-02-18 14:42:34,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1894821393, now seen corresponding path program 7 times [2022-02-18 14:42:34,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:34,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453466981] [2022-02-18 14:42:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:34,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:34,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:34,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453466981] [2022-02-18 14:42:34,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453466981] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:34,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:34,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:34,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938615999] [2022-02-18 14:42:34,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:34,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:34,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:34,768 INFO L87 Difference]: Start difference. First operand 40155 states and 181288 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:35,496 INFO L93 Difference]: Finished difference Result 55095 states and 248109 transitions. [2022-02-18 14:42:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:35,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:35,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:35,750 INFO L225 Difference]: With dead ends: 55095 [2022-02-18 14:42:35,750 INFO L226 Difference]: Without dead ends: 55095 [2022-02-18 14:42:35,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:35,752 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 146 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:35,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 869 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55095 states. [2022-02-18 14:42:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55095 to 36481. [2022-02-18 14:42:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36481 states, 36480 states have (on average 4.511348684210526) internal successors, (164574), 36480 states have internal predecessors, (164574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36481 states to 36481 states and 164574 transitions. [2022-02-18 14:42:37,176 INFO L78 Accepts]: Start accepts. Automaton has 36481 states and 164574 transitions. Word has length 191 [2022-02-18 14:42:37,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:37,176 INFO L470 AbstractCegarLoop]: Abstraction has 36481 states and 164574 transitions. [2022-02-18 14:42:37,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:37,176 INFO L276 IsEmpty]: Start isEmpty. Operand 36481 states and 164574 transitions. [2022-02-18 14:42:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:37,267 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:37,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:37,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-18 14:42:37,268 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)] === [2022-02-18 14:42:37,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash 909527997, now seen corresponding path program 8 times [2022-02-18 14:42:37,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:37,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107028474] [2022-02-18 14:42:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:42:37,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:37,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107028474] [2022-02-18 14:42:37,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107028474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:37,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:37,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 14:42:37,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035266910] [2022-02-18 14:42:37,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:37,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 14:42:37,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:37,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 14:42:37,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:42:37,464 INFO L87 Difference]: Start difference. First operand 36481 states and 164574 transitions. Second operand has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:38,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:38,271 INFO L93 Difference]: Finished difference Result 44967 states and 199276 transitions. [2022-02-18 14:42:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:42:38,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:38,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:38,471 INFO L225 Difference]: With dead ends: 44967 [2022-02-18 14:42:38,471 INFO L226 Difference]: Without dead ends: 44967 [2022-02-18 14:42:38,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:42:38,472 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 350 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:38,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1211 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:42:38,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44967 states. [2022-02-18 14:42:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44967 to 36940. [2022-02-18 14:42:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36940 states, 36939 states have (on average 4.5037764963859335) internal successors, (166365), 36939 states have internal predecessors, (166365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36940 states to 36940 states and 166365 transitions. [2022-02-18 14:42:39,752 INFO L78 Accepts]: Start accepts. Automaton has 36940 states and 166365 transitions. Word has length 191 [2022-02-18 14:42:39,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:39,752 INFO L470 AbstractCegarLoop]: Abstraction has 36940 states and 166365 transitions. [2022-02-18 14:42:39,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.22222222222222) internal successors, (191), 9 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 36940 states and 166365 transitions. [2022-02-18 14:42:39,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:39,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:39,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:39,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-18 14:42:39,845 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)] === [2022-02-18 14:42:39,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:39,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1968351519, now seen corresponding path program 9 times [2022-02-18 14:42:39,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:39,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334761382] [2022-02-18 14:42:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:39,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:40,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:40,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334761382] [2022-02-18 14:42:40,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334761382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:40,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:40,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 14:42:40,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171085606] [2022-02-18 14:42:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:40,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 14:42:40,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 14:42:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:42:40,037 INFO L87 Difference]: Start difference. First operand 36940 states and 166365 transitions. Second operand has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:40,625 INFO L93 Difference]: Finished difference Result 38308 states and 171746 transitions. [2022-02-18 14:42:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:42:40,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:40,772 INFO L225 Difference]: With dead ends: 38308 [2022-02-18 14:42:40,772 INFO L226 Difference]: Without dead ends: 38308 [2022-02-18 14:42:40,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:42:40,773 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 254 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:40,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 809 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38308 states. [2022-02-18 14:42:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38308 to 37138. [2022-02-18 14:42:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37138 states, 37137 states have (on average 4.494951126908474) internal successors, (166929), 37137 states have internal predecessors, (166929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37138 states to 37138 states and 166929 transitions. [2022-02-18 14:42:42,008 INFO L78 Accepts]: Start accepts. Automaton has 37138 states and 166929 transitions. Word has length 191 [2022-02-18 14:42:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:42,009 INFO L470 AbstractCegarLoop]: Abstraction has 37138 states and 166929 transitions. [2022-02-18 14:42:42,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.875) internal successors, (191), 8 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 37138 states and 166929 transitions. [2022-02-18 14:42:42,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:42,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:42,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:42,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-18 14:42:42,104 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)] === [2022-02-18 14:42:42,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:42,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1789951397, now seen corresponding path program 10 times [2022-02-18 14:42:42,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:42,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352650013] [2022-02-18 14:42:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:42,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:42,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:42,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:42,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352650013] [2022-02-18 14:42:42,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352650013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:42,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:42,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:42,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565063111] [2022-02-18 14:42:42,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:42,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:42,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:42,219 INFO L87 Difference]: Start difference. First operand 37138 states and 166929 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:42,887 INFO L93 Difference]: Finished difference Result 56803 states and 250861 transitions. [2022-02-18 14:42:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:42,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:42,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:43,097 INFO L225 Difference]: With dead ends: 56803 [2022-02-18 14:42:43,098 INFO L226 Difference]: Without dead ends: 55711 [2022-02-18 14:42:43,098 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 [2022-02-18 14:42:43,098 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 155 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:43,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 639 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:43,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55711 states. [2022-02-18 14:42:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55711 to 40360. [2022-02-18 14:42:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40360 states, 40359 states have (on average 4.464406947644887) internal successors, (180179), 40359 states have internal predecessors, (180179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40360 states to 40360 states and 180179 transitions. [2022-02-18 14:42:44,498 INFO L78 Accepts]: Start accepts. Automaton has 40360 states and 180179 transitions. Word has length 191 [2022-02-18 14:42:44,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:44,498 INFO L470 AbstractCegarLoop]: Abstraction has 40360 states and 180179 transitions. [2022-02-18 14:42:44,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:44,499 INFO L276 IsEmpty]: Start isEmpty. Operand 40360 states and 180179 transitions. [2022-02-18 14:42:44,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:44,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:44,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:44,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-18 14:42:44,608 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)] === [2022-02-18 14:42:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash -96898587, now seen corresponding path program 11 times [2022-02-18 14:42:44,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:44,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096973954] [2022-02-18 14:42:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:44,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:44,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:44,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096973954] [2022-02-18 14:42:44,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096973954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:44,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:44,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:44,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726771202] [2022-02-18 14:42:44,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:44,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:44,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:44,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:44,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:44,738 INFO L87 Difference]: Start difference. First operand 40360 states and 180179 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:45,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:45,544 INFO L93 Difference]: Finished difference Result 64945 states and 285594 transitions. [2022-02-18 14:42:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:42:45,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:45,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:46,112 INFO L225 Difference]: With dead ends: 64945 [2022-02-18 14:42:46,112 INFO L226 Difference]: Without dead ends: 64945 [2022-02-18 14:42:46,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:42:46,113 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 193 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:46,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 531 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:42:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64945 states. [2022-02-18 14:42:47,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64945 to 34387. [2022-02-18 14:42:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34387 states, 34386 states have (on average 4.401180713080905) internal successors, (151339), 34386 states have internal predecessors, (151339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34387 states to 34387 states and 151339 transitions. [2022-02-18 14:42:47,653 INFO L78 Accepts]: Start accepts. Automaton has 34387 states and 151339 transitions. Word has length 191 [2022-02-18 14:42:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:47,653 INFO L470 AbstractCegarLoop]: Abstraction has 34387 states and 151339 transitions. [2022-02-18 14:42:47,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 34387 states and 151339 transitions. [2022-02-18 14:42:47,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-18 14:42:47,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:47,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:47,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-18 14:42:47,777 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)] === [2022-02-18 14:42:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1467285865, now seen corresponding path program 12 times [2022-02-18 14:42:47,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:47,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365575014] [2022-02-18 14:42:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:47,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 14:42:47,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:47,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365575014] [2022-02-18 14:42:47,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365575014] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:42:47,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:42:47,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:42:47,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274938619] [2022-02-18 14:42:47,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:42:47,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:42:47,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:42:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:42:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:42:47,858 INFO L87 Difference]: Start difference. First operand 34387 states and 151339 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:48,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:42:48,157 INFO L93 Difference]: Finished difference Result 34018 states and 145834 transitions. [2022-02-18 14:42:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:42:48,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-02-18 14:42:48,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:42:48,280 INFO L225 Difference]: With dead ends: 34018 [2022-02-18 14:42:48,280 INFO L226 Difference]: Without dead ends: 31834 [2022-02-18 14:42:48,280 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 [2022-02-18 14:42:48,281 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 138 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:42:48,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 630 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:42:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31834 states. [2022-02-18 14:42:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31834 to 26363. [2022-02-18 14:42:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26363 states, 26362 states have (on average 4.399552386010166) internal successors, (115981), 26362 states have internal predecessors, (115981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26363 states to 26363 states and 115981 transitions. [2022-02-18 14:42:49,354 INFO L78 Accepts]: Start accepts. Automaton has 26363 states and 115981 transitions. Word has length 191 [2022-02-18 14:42:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:42:49,354 INFO L470 AbstractCegarLoop]: Abstraction has 26363 states and 115981 transitions. [2022-02-18 14:42:49,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:42:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 26363 states and 115981 transitions. [2022-02-18 14:42:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-18 14:42:49,422 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:42:49,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:42:49,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-18 14:42:49,422 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)] === [2022-02-18 14:42:49,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:42:49,423 INFO L85 PathProgramCache]: Analyzing trace with hash -299265932, now seen corresponding path program 1 times [2022-02-18 14:42:49,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:42:49,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219939505] [2022-02-18 14:42:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:49,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:42:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:42:52,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:42:52,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219939505] [2022-02-18 14:42:52,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219939505] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:42:52,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451362023] [2022-02-18 14:42:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:42:52,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:42:52,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:42:52,981 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:42:52,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-18 14:42:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:42:53,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 114 conjunts are in the unsatisfiable core [2022-02-18 14:42:53,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:42:53,196 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:42:53,249 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-02-18 14:42:53,296 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-02-18 14:42:53,367 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-02-18 14:42:53,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-02-18 14:42:54,205 INFO L353 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2022-02-18 14:42:54,205 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 25 [2022-02-18 14:42:55,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 14:42:57,004 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:42:57,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:42:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:42:58,321 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-18 14:42:58,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2022-02-18 14:42:58,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:42:58,672 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-02-18 14:42:58,673 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2022-02-18 14:42:59,590 INFO L353 Elim1Store]: treesize reduction 31, result has 41.5 percent of original size [2022-02-18 14:42:59,591 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 34 [2022-02-18 14:42:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:42:59,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:43:02,487 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:02,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2022-02-18 14:43:02,537 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:02,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58072 treesize of output 56084 [2022-02-18 14:43:02,690 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:02,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55798 treesize of output 43526 [2022-02-18 14:43:02,854 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:02,854 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43510 treesize of output 37382 [2022-02-18 14:43:03,042 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:03,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37544 treesize of output 34496 [2022-02-18 14:43:03,227 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:43:03,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34448 treesize of output 32972