/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 00:30:52,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 00:30:52,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 00:30:52,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 00:30:52,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 00:30:52,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 00:30:52,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 00:30:52,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 00:30:52,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 00:30:52,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 00:30:52,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 00:30:52,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 00:30:52,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 00:30:52,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 00:30:52,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 00:30:52,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 00:30:52,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 00:30:52,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 00:30:52,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 00:30:52,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 00:30:52,858 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 [2022-01-18 00:30:52,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 00:30:52,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 00:30:52,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 00:30:52,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 00:30:52,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 00:30:52,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 00:30:52,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 00:30:52,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 00:30:52,872 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 00:30:52,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 00:30:52,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 00:30:52,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 00:30:52,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:30:52,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 00:30:52,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 00:30:53,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 00:30:53,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 00:30:53,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 00:30:53,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 00:30:53,040 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 00:30:53,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-01-18 00:30:53,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6932cc389/046f35b290cf4a7dab6b5f056a9c9150/FLAG0c6f54224 [2022-01-18 00:30:53,456 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 00:30:53,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-01-18 00:30:53,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6932cc389/046f35b290cf4a7dab6b5f056a9c9150/FLAG0c6f54224 [2022-01-18 00:30:53,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6932cc389/046f35b290cf4a7dab6b5f056a9c9150 [2022-01-18 00:30:53,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 00:30:53,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 00:30:53,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 00:30:53,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 00:30:53,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 00:30:53,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168ba6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53, skipping insertion in model container [2022-01-18 00:30:53,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 00:30:53,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 00:30:53,671 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/bench-exp3x3-opt.wvr.c[2826,2839] [2022-01-18 00:30:53,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:30:53,678 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 00:30:53,694 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/bench-exp3x3-opt.wvr.c[2826,2839] [2022-01-18 00:30:53,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:30:53,703 INFO L208 MainTranslator]: Completed translation [2022-01-18 00:30:53,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53 WrapperNode [2022-01-18 00:30:53,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 00:30:53,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 00:30:53,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 00:30:53,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 00:30:53,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,729 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-01-18 00:30:53,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 00:30:53,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 00:30:53,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 00:30:53,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 00:30:53,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 00:30:53,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 00:30:53,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 00:30:53,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 00:30:53,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (1/1) ... [2022-01-18 00:30:53,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:30:53,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:30:53,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 00:30:53,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 00:30:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 00:30:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 00:30:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 00:30:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 00:30:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 00:30:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 00:30:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 00:30:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-18 00:30:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-18 00:30:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-01-18 00:30:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-01-18 00:30:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 00:30:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 00:30:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 00:30:53,799 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 00:30:53,868 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 00:30:53,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 00:30:54,071 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 00:30:54,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 00:30:54,077 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-18 00:30:54,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:30:54 BoogieIcfgContainer [2022-01-18 00:30:54,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 00:30:54,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 00:30:54,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 00:30:54,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 00:30:54,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:30:53" (1/3) ... [2022-01-18 00:30:54,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c7d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:30:54, skipping insertion in model container [2022-01-18 00:30:54,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:53" (2/3) ... [2022-01-18 00:30:54,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c7d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:30:54, skipping insertion in model container [2022-01-18 00:30:54,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:30:54" (3/3) ... [2022-01-18 00:30:54,088 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2022-01-18 00:30:54,091 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 00:30:54,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 00:30:54,091 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 00:30:54,091 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 00:30:54,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,128 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,128 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,128 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,128 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,129 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,129 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,129 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,129 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,130 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,130 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,130 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,131 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,131 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,131 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,132 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,132 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,137 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,137 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,139 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,139 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,139 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,140 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,140 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,140 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,141 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,141 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,141 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,141 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:54,146 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-18 00:30:54,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 00:30:54,181 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 00:30:54,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-18 00:30:54,196 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 174 places, 169 transitions, 386 flow [2022-01-18 00:30:58,278 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-18 00:30:59,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:59,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:59,435 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:30:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:59,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1952224635, now seen corresponding path program 1 times [2022-01-18 00:30:59,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:59,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751406703] [2022-01-18 00:30:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:59,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:59,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751406703] [2022-01-18 00:30:59,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751406703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:59,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:59,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 00:30:59,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095654096] [2022-01-18 00:30:59,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:59,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 00:30:59,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 00:30:59,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 00:30:59,860 INFO L87 Difference]: Start difference. First operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 0 states have call successors, (0), 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 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:01,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:31:01,378 INFO L93 Difference]: Finished difference Result 97705 states and 624075 transitions. [2022-01-18 00:31:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 00:31:01,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-18 00:31:01,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:31:02,461 INFO L225 Difference]: With dead ends: 97705 [2022-01-18 00:31:02,461 INFO L226 Difference]: Without dead ends: 97703 [2022-01-18 00:31:02,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 00:31:02,465 INFO L933 BasicCegarLoop]: 126 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, 126 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 [2022-01-18 00:31:02,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:31:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97703 states. [2022-01-18 00:31:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97703 to 97703. [2022-01-18 00:31:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97703 states, 97702 states have (on average 6.387515096927391) internal successors, (624073), 97702 states have internal predecessors, (624073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97703 states to 97703 states and 624073 transitions. [2022-01-18 00:31:07,663 INFO L78 Accepts]: Start accepts. Automaton has 97703 states and 624073 transitions. Word has length 124 [2022-01-18 00:31:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:31:07,664 INFO L470 AbstractCegarLoop]: Abstraction has 97703 states and 624073 transitions. [2022-01-18 00:31:07,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:07,664 INFO L276 IsEmpty]: Start isEmpty. Operand 97703 states and 624073 transitions. [2022-01-18 00:31:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-18 00:31:08,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:31:08,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:31:08,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 00:31:08,019 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:31:08,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:31:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1097050563, now seen corresponding path program 1 times [2022-01-18 00:31:08,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:31:08,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935222026] [2022-01-18 00:31:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:08,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:31:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:09,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:31:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935222026] [2022-01-18 00:31:09,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935222026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:31:09,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:31:09,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:31:09,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917346948] [2022-01-18 00:31:09,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:31:09,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:31:09,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:31:09,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:31:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:31:09,069 INFO L87 Difference]: Start difference. First operand 97703 states and 624073 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:31:12,083 INFO L93 Difference]: Finished difference Result 195320 states and 1247947 transitions. [2022-01-18 00:31:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:31:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-18 00:31:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:31:14,019 INFO L225 Difference]: With dead ends: 195320 [2022-01-18 00:31:14,019 INFO L226 Difference]: Without dead ends: 191309 [2022-01-18 00:31:14,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:31:14,021 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 161 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 00:31:14,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 504 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 00:31:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191309 states. [2022-01-18 00:31:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191309 to 122358. [2022-01-18 00:31:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122358 states, 122357 states have (on average 6.363297563686589) internal successors, (778594), 122357 states have internal predecessors, (778594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122358 states to 122358 states and 778594 transitions. [2022-01-18 00:31:21,056 INFO L78 Accepts]: Start accepts. Automaton has 122358 states and 778594 transitions. Word has length 124 [2022-01-18 00:31:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:31:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 122358 states and 778594 transitions. [2022-01-18 00:31:21,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 122358 states and 778594 transitions. [2022-01-18 00:31:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:31:22,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:31:22,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:31:22,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 00:31:22,108 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:31:22,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:31:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1674154437, now seen corresponding path program 1 times [2022-01-18 00:31:22,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:31:22,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929150513] [2022-01-18 00:31:22,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:22,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:31:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:22,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:31:22,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929150513] [2022-01-18 00:31:22,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929150513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:31:22,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:31:22,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:31:22,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398098671] [2022-01-18 00:31:22,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:31:22,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:31:22,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:31:22,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:31:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:31:22,353 INFO L87 Difference]: Start difference. First operand 122358 states and 778594 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:31:25,277 INFO L93 Difference]: Finished difference Result 191343 states and 1204582 transitions. [2022-01-18 00:31:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 00:31:25,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:31:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:31:27,231 INFO L225 Difference]: With dead ends: 191343 [2022-01-18 00:31:27,232 INFO L226 Difference]: Without dead ends: 187218 [2022-01-18 00:31:27,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:31:27,237 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 162 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:31:27,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 428 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:31:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187218 states. [2022-01-18 00:31:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187218 to 141552. [2022-01-18 00:31:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141552 states, 141551 states have (on average 6.3017004471886455) internal successors, (892012), 141551 states have internal predecessors, (892012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141552 states to 141552 states and 892012 transitions. [2022-01-18 00:31:34,153 INFO L78 Accepts]: Start accepts. Automaton has 141552 states and 892012 transitions. Word has length 126 [2022-01-18 00:31:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:31:34,154 INFO L470 AbstractCegarLoop]: Abstraction has 141552 states and 892012 transitions. [2022-01-18 00:31:34,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:34,154 INFO L276 IsEmpty]: Start isEmpty. Operand 141552 states and 892012 transitions. [2022-01-18 00:31:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:31:35,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:31:35,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:31:35,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 00:31:35,171 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:31:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:31:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash -21737079, now seen corresponding path program 1 times [2022-01-18 00:31:35,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:31:35,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256124555] [2022-01-18 00:31:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:35,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:31:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:35,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:31:35,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256124555] [2022-01-18 00:31:35,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256124555] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:31:35,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801682479] [2022-01-18 00:31:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:35,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:31:35,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:31:35,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:31:35,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 00:31:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:35,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:31:35,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:31:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:35,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:31:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:36,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801682479] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:31:36,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:31:36,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-01-18 00:31:36,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122902175] [2022-01-18 00:31:36,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:31:36,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 00:31:36,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:31:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 00:31:36,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 00:31:36,053 INFO L87 Difference]: Start difference. First operand 141552 states and 892012 transitions. Second operand has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:31:40,653 INFO L93 Difference]: Finished difference Result 302814 states and 1920155 transitions. [2022-01-18 00:31:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 00:31:40,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:31:40,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:31:43,476 INFO L225 Difference]: With dead ends: 302814 [2022-01-18 00:31:43,476 INFO L226 Difference]: Without dead ends: 302814 [2022-01-18 00:31:43,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:31:43,477 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 565 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:31:43,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 674 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:31:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302814 states. [2022-01-18 00:31:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302814 to 177331. [2022-01-18 00:31:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177331 states, 177330 states have (on average 6.343748942649298) internal successors, (1124937), 177330 states have internal predecessors, (1124937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177331 states to 177331 states and 1124937 transitions. [2022-01-18 00:31:54,072 INFO L78 Accepts]: Start accepts. Automaton has 177331 states and 1124937 transitions. Word has length 126 [2022-01-18 00:31:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:31:54,072 INFO L470 AbstractCegarLoop]: Abstraction has 177331 states and 1124937 transitions. [2022-01-18 00:31:54,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:31:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 177331 states and 1124937 transitions. [2022-01-18 00:31:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:31:55,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:31:55,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:31:55,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 00:31:55,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:31:55,507 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:31:55,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:31:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash -264954989, now seen corresponding path program 2 times [2022-01-18 00:31:55,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:31:55,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208835921] [2022-01-18 00:31:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:55,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:31:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:55,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:31:55,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208835921] [2022-01-18 00:31:55,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208835921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:31:55,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:31:55,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:31:55,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449285862] [2022-01-18 00:31:55,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:31:55,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:31:55,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:31:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:31:55,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:31:55,604 INFO L87 Difference]: Start difference. First operand 177331 states and 1124937 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:00,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:32:00,886 INFO L93 Difference]: Finished difference Result 308753 states and 1962270 transitions. [2022-01-18 00:32:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:32:00,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:32:00,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:32:04,868 INFO L225 Difference]: With dead ends: 308753 [2022-01-18 00:32:04,868 INFO L226 Difference]: Without dead ends: 308753 [2022-01-18 00:32:04,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:32:04,869 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 333 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:32:04,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 497 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:32:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308753 states. [2022-01-18 00:32:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308753 to 189203. [2022-01-18 00:32:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189203 states, 189202 states have (on average 6.359409519983933) internal successors, (1203213), 189202 states have internal predecessors, (1203213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189203 states to 189203 states and 1203213 transitions. [2022-01-18 00:32:15,757 INFO L78 Accepts]: Start accepts. Automaton has 189203 states and 1203213 transitions. Word has length 126 [2022-01-18 00:32:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:32:15,757 INFO L470 AbstractCegarLoop]: Abstraction has 189203 states and 1203213 transitions. [2022-01-18 00:32:15,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 189203 states and 1203213 transitions. [2022-01-18 00:32:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:32:17,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:32:17,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:32:17,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 00:32:17,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:32:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:32:17,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1467098239, now seen corresponding path program 1 times [2022-01-18 00:32:17,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:32:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969758032] [2022-01-18 00:32:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:32:17,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:32:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:32:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:32:17,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:32:17,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969758032] [2022-01-18 00:32:17,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969758032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:32:17,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:32:17,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:32:17,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187547005] [2022-01-18 00:32:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:32:17,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:32:17,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:32:17,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:32:17,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:32:17,189 INFO L87 Difference]: Start difference. First operand 189203 states and 1203213 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:32:20,347 INFO L93 Difference]: Finished difference Result 217058 states and 1356249 transitions. [2022-01-18 00:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 00:32:20,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:32:20,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:32:22,380 INFO L225 Difference]: With dead ends: 217058 [2022-01-18 00:32:22,381 INFO L226 Difference]: Without dead ends: 211721 [2022-01-18 00:32:22,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:32:22,381 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 201 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:32:22,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 344 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:32:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211721 states. [2022-01-18 00:32:28,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211721 to 189860. [2022-01-18 00:32:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189860 states, 189859 states have (on average 6.320242917112172) internal successors, (1199955), 189859 states have internal predecessors, (1199955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189860 states to 189860 states and 1199955 transitions. [2022-01-18 00:32:31,058 INFO L78 Accepts]: Start accepts. Automaton has 189860 states and 1199955 transitions. Word has length 126 [2022-01-18 00:32:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:32:31,059 INFO L470 AbstractCegarLoop]: Abstraction has 189860 states and 1199955 transitions. [2022-01-18 00:32:31,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 189860 states and 1199955 transitions. [2022-01-18 00:32:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:32:32,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:32:32,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:32:32,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 00:32:32,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:32:32,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:32:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1948360897, now seen corresponding path program 1 times [2022-01-18 00:32:32,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:32:32,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884864894] [2022-01-18 00:32:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:32:32,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:32:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:32:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:32:32,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:32:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884864894] [2022-01-18 00:32:32,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884864894] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:32:32,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433992456] [2022-01-18 00:32:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:32:32,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:32:32,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:32:32,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:32:32,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 00:32:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:32:32,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:32:32,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:32:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:32:32,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:32:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:32:32,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433992456] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:32:32,967 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:32:32,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-01-18 00:32:32,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810163720] [2022-01-18 00:32:32,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:32:32,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 00:32:32,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:32:32,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 00:32:32,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 00:32:32,968 INFO L87 Difference]: Start difference. First operand 189860 states and 1199955 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:32:40,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:32:40,017 INFO L93 Difference]: Finished difference Result 458387 states and 2887017 transitions. [2022-01-18 00:32:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 00:32:40,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:32:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:32:47,722 INFO L225 Difference]: With dead ends: 458387 [2022-01-18 00:32:47,722 INFO L226 Difference]: Without dead ends: 458387 [2022-01-18 00:32:47,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:32:47,723 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 695 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:32:47,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 687 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:32:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458387 states. [2022-01-18 00:33:00,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458387 to 221327. [2022-01-18 00:33:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221327 states, 221326 states have (on average 6.395574853383696) internal successors, (1415507), 221326 states have internal predecessors, (1415507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221327 states to 221327 states and 1415507 transitions. [2022-01-18 00:33:03,681 INFO L78 Accepts]: Start accepts. Automaton has 221327 states and 1415507 transitions. Word has length 126 [2022-01-18 00:33:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:33:03,681 INFO L470 AbstractCegarLoop]: Abstraction has 221327 states and 1415507 transitions. [2022-01-18 00:33:03,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 221327 states and 1415507 transitions. [2022-01-18 00:33:04,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:33:04,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:33:04,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:33:04,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 00:33:04,780 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,SelfDestructingSolverStorable6 [2022-01-18 00:33:04,781 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:33:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:33:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -130625145, now seen corresponding path program 2 times [2022-01-18 00:33:04,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:33:04,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001695493] [2022-01-18 00:33:04,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:33:04,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:33:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:33:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:33:04,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:33:04,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001695493] [2022-01-18 00:33:04,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001695493] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:33:04,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120634108] [2022-01-18 00:33:04,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 00:33:04,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:33:04,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:33:04,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:33:04,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 00:33:04,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 00:33:04,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:33:04,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 00:33:04,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:33:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 00:33:05,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 00:33:05,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120634108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:33:05,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 00:33:05,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-01-18 00:33:05,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691371919] [2022-01-18 00:33:05,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:33:05,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:33:05,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:33:05,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:33:05,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:33:05,782 INFO L87 Difference]: Start difference. First operand 221327 states and 1415507 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:33:10,600 INFO L93 Difference]: Finished difference Result 339689 states and 2165498 transitions. [2022-01-18 00:33:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 00:33:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:33:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:33:13,804 INFO L225 Difference]: With dead ends: 339689 [2022-01-18 00:33:13,804 INFO L226 Difference]: Without dead ends: 325661 [2022-01-18 00:33:13,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:33:13,805 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 177 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:33:13,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 608 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:33:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325661 states. [2022-01-18 00:33:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325661 to 245024. [2022-01-18 00:33:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245024 states, 245023 states have (on average 6.439460785314032) internal successors, (1577816), 245023 states have internal predecessors, (1577816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245024 states to 245024 states and 1577816 transitions. [2022-01-18 00:33:27,048 INFO L78 Accepts]: Start accepts. Automaton has 245024 states and 1577816 transitions. Word has length 126 [2022-01-18 00:33:27,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:33:27,048 INFO L470 AbstractCegarLoop]: Abstraction has 245024 states and 1577816 transitions. [2022-01-18 00:33:27,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:27,048 INFO L276 IsEmpty]: Start isEmpty. Operand 245024 states and 1577816 transitions. [2022-01-18 00:33:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:33:28,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:33:28,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:33:28,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-18 00:33:28,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:33:28,755 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:33:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:33:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1781528513, now seen corresponding path program 1 times [2022-01-18 00:33:28,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:33:28,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995266610] [2022-01-18 00:33:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:33:28,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:33:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:33:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:33:29,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:33:29,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995266610] [2022-01-18 00:33:29,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995266610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:33:29,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:33:29,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:33:29,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960965490] [2022-01-18 00:33:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:33:29,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:33:29,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:33:29,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:33:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:33:29,389 INFO L87 Difference]: Start difference. First operand 245024 states and 1577816 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:33:36,536 INFO L93 Difference]: Finished difference Result 411780 states and 2632984 transitions. [2022-01-18 00:33:36,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:33:36,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:33:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:33:43,295 INFO L225 Difference]: With dead ends: 411780 [2022-01-18 00:33:43,296 INFO L226 Difference]: Without dead ends: 404490 [2022-01-18 00:33:43,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:33:43,305 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 421 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:33:43,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 519 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:33:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404490 states. [2022-01-18 00:33:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404490 to 258534. [2022-01-18 00:33:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258534 states, 258533 states have (on average 6.45839409282374) internal successors, (1669708), 258533 states have internal predecessors, (1669708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258534 states to 258534 states and 1669708 transitions. [2022-01-18 00:33:59,998 INFO L78 Accepts]: Start accepts. Automaton has 258534 states and 1669708 transitions. Word has length 126 [2022-01-18 00:33:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:33:59,998 INFO L470 AbstractCegarLoop]: Abstraction has 258534 states and 1669708 transitions. [2022-01-18 00:33:59,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:33:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 258534 states and 1669708 transitions. [2022-01-18 00:34:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:34:01,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:34:01,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:34:01,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 00:34:01,685 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:34:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:34:01,685 INFO L85 PathProgramCache]: Analyzing trace with hash -926572165, now seen corresponding path program 1 times [2022-01-18 00:34:01,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:34:01,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882658311] [2022-01-18 00:34:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:34:01,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:34:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:34:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:34:01,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:34:01,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882658311] [2022-01-18 00:34:01,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882658311] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:34:01,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020756397] [2022-01-18 00:34:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:34:01,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:34:01,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:34:01,821 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:34:01,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 00:34:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:34:01,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:34:01,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:34:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:34:02,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:34:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:34:02,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020756397] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:34:02,420 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:34:02,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-01-18 00:34:02,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994275009] [2022-01-18 00:34:02,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:34:02,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 00:34:02,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:34:02,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 00:34:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 00:34:02,421 INFO L87 Difference]: Start difference. First operand 258534 states and 1669708 transitions. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:34:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:34:13,165 INFO L93 Difference]: Finished difference Result 544800 states and 3459288 transitions. [2022-01-18 00:34:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 00:34:13,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:34:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:34:20,824 INFO L225 Difference]: With dead ends: 544800 [2022-01-18 00:34:20,824 INFO L226 Difference]: Without dead ends: 544800 [2022-01-18 00:34:20,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:34:20,825 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 594 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:34:20,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 794 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:34:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544800 states. [2022-01-18 00:34:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544800 to 296221. [2022-01-18 00:34:41,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296221 states, 296220 states have (on average 6.474731618391736) internal successors, (1917945), 296220 states have internal predecessors, (1917945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:34:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296221 states to 296221 states and 1917945 transitions. [2022-01-18 00:34:44,984 INFO L78 Accepts]: Start accepts. Automaton has 296221 states and 1917945 transitions. Word has length 126 [2022-01-18 00:34:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:34:44,985 INFO L470 AbstractCegarLoop]: Abstraction has 296221 states and 1917945 transitions. [2022-01-18 00:34:44,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:34:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 296221 states and 1917945 transitions. [2022-01-18 00:34:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:34:46,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:34:46,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:34:46,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-18 00:34:46,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:34:46,948 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:34:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:34:46,948 INFO L85 PathProgramCache]: Analyzing trace with hash -665822925, now seen corresponding path program 2 times [2022-01-18 00:34:46,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:34:46,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854668002] [2022-01-18 00:34:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:34:46,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:34:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:34:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:34:47,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:34:47,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854668002] [2022-01-18 00:34:47,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854668002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:34:47,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:34:47,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:34:47,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034909423] [2022-01-18 00:34:47,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:34:47,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:34:47,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:34:47,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:34:47,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:34:47,053 INFO L87 Difference]: Start difference. First operand 296221 states and 1917945 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:34:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:34:53,281 INFO L93 Difference]: Finished difference Result 407355 states and 2584784 transitions. [2022-01-18 00:34:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:34:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:34:53,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:35:00,052 INFO L225 Difference]: With dead ends: 407355 [2022-01-18 00:35:00,052 INFO L226 Difference]: Without dead ends: 401361 [2022-01-18 00:35:00,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:35:00,053 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 379 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:35:00,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 495 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:35:00,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401361 states. [2022-01-18 00:35:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401361 to 298219. [2022-01-18 00:35:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298219 states, 298218 states have (on average 6.465484980785868) internal successors, (1928124), 298218 states have internal predecessors, (1928124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298219 states to 298219 states and 1928124 transitions. [2022-01-18 00:35:17,845 INFO L78 Accepts]: Start accepts. Automaton has 298219 states and 1928124 transitions. Word has length 126 [2022-01-18 00:35:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:35:17,845 INFO L470 AbstractCegarLoop]: Abstraction has 298219 states and 1928124 transitions. [2022-01-18 00:35:17,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 298219 states and 1928124 transitions. [2022-01-18 00:35:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 00:35:19,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:35:19,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:35:19,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 00:35:19,555 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:35:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:35:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1934123879, now seen corresponding path program 2 times [2022-01-18 00:35:19,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:35:19,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622313571] [2022-01-18 00:35:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:35:19,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:35:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:35:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:35:19,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:35:19,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622313571] [2022-01-18 00:35:19,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622313571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:35:19,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:35:19,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:35:19,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383900885] [2022-01-18 00:35:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:35:19,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:35:19,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:35:19,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:35:19,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:35:19,679 INFO L87 Difference]: Start difference. First operand 298219 states and 1928124 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:24,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:35:24,696 INFO L93 Difference]: Finished difference Result 344021 states and 2223141 transitions. [2022-01-18 00:35:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:35:24,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-18 00:35:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:35:29,742 INFO L225 Difference]: With dead ends: 344021 [2022-01-18 00:35:29,742 INFO L226 Difference]: Without dead ends: 344021 [2022-01-18 00:35:29,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:35:29,742 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 305 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:35:29,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 518 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:35:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344021 states. [2022-01-18 00:35:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344021 to 331771. [2022-01-18 00:35:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331771 states, 331770 states have (on average 6.4764595955029085) internal successors, (2148695), 331770 states have internal predecessors, (2148695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331771 states to 331771 states and 2148695 transitions. [2022-01-18 00:35:48,790 INFO L78 Accepts]: Start accepts. Automaton has 331771 states and 2148695 transitions. Word has length 126 [2022-01-18 00:35:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:35:48,790 INFO L470 AbstractCegarLoop]: Abstraction has 331771 states and 2148695 transitions. [2022-01-18 00:35:48,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 331771 states and 2148695 transitions. [2022-01-18 00:35:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-18 00:35:50,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:35:50,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:35:50,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 00:35:50,691 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:35:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:35:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash -218248757, now seen corresponding path program 1 times [2022-01-18 00:35:50,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:35:50,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058845600] [2022-01-18 00:35:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:35:50,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:35:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:35:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 00:35:50,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:35:50,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058845600] [2022-01-18 00:35:50,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058845600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:35:50,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:35:50,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:35:50,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327080431] [2022-01-18 00:35:50,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:35:50,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:35:50,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:35:50,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:35:50,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:35:50,809 INFO L87 Difference]: Start difference. First operand 331771 states and 2148695 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:35:57,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:35:57,141 INFO L93 Difference]: Finished difference Result 414400 states and 2648942 transitions. [2022-01-18 00:35:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:35:57,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2022-01-18 00:35:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:36:02,211 INFO L225 Difference]: With dead ends: 414400 [2022-01-18 00:36:02,211 INFO L226 Difference]: Without dead ends: 296608 [2022-01-18 00:36:02,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:36:02,213 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 169 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:36:02,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 650 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:36:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296608 states. [2022-01-18 00:36:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296608 to 275338. [2022-01-18 00:36:15,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275338 states, 275337 states have (on average 6.499533299193352) internal successors, (1789562), 275337 states have internal predecessors, (1789562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275338 states to 275338 states and 1789562 transitions. [2022-01-18 00:36:17,961 INFO L78 Accepts]: Start accepts. Automaton has 275338 states and 1789562 transitions. Word has length 128 [2022-01-18 00:36:17,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:36:17,961 INFO L470 AbstractCegarLoop]: Abstraction has 275338 states and 1789562 transitions. [2022-01-18 00:36:17,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 275338 states and 1789562 transitions. [2022-01-18 00:36:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-18 00:36:19,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:36:19,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:36:19,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 00:36:19,126 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:36:19,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:36:19,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1160545283, now seen corresponding path program 1 times [2022-01-18 00:36:19,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:36:19,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911732700] [2022-01-18 00:36:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:36:19,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:36:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:36:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 00:36:19,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:36:19,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911732700] [2022-01-18 00:36:19,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911732700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:36:19,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:36:19,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:36:19,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356568250] [2022-01-18 00:36:19,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:36:19,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:36:19,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:36:19,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:36:19,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:36:19,212 INFO L87 Difference]: Start difference. First operand 275338 states and 1789562 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:36:25,920 INFO L93 Difference]: Finished difference Result 412351 states and 2679622 transitions. [2022-01-18 00:36:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:36:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2022-01-18 00:36:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:36:32,054 INFO L225 Difference]: With dead ends: 412351 [2022-01-18 00:36:32,054 INFO L226 Difference]: Without dead ends: 362179 [2022-01-18 00:36:32,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:36:32,055 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 169 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:36:32,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 590 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:36:32,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362179 states. [2022-01-18 00:36:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362179 to 252658. [2022-01-18 00:36:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252658 states, 252657 states have (on average 6.560570259284326) internal successors, (1657574), 252657 states have internal predecessors, (1657574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252658 states to 252658 states and 1657574 transitions. [2022-01-18 00:36:47,817 INFO L78 Accepts]: Start accepts. Automaton has 252658 states and 1657574 transitions. Word has length 128 [2022-01-18 00:36:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:36:47,817 INFO L470 AbstractCegarLoop]: Abstraction has 252658 states and 1657574 transitions. [2022-01-18 00:36:47,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 252658 states and 1657574 transitions. [2022-01-18 00:36:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 00:36:49,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:36:49,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:36:49,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 00:36:49,299 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:36:49,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:36:49,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1731929083, now seen corresponding path program 1 times [2022-01-18 00:36:49,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:36:49,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325052461] [2022-01-18 00:36:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:36:49,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:36:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:36:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 00:36:49,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:36:49,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325052461] [2022-01-18 00:36:49,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325052461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:36:49,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:36:49,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:36:49,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163138029] [2022-01-18 00:36:49,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:36:49,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:36:49,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:36:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:36:49,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:36:49,452 INFO L87 Difference]: Start difference. First operand 252658 states and 1657574 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:36:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:36:54,408 INFO L93 Difference]: Finished difference Result 345985 states and 2224363 transitions. [2022-01-18 00:36:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:36:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 00:36:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:36:57,411 INFO L225 Difference]: With dead ends: 345985 [2022-01-18 00:36:57,411 INFO L226 Difference]: Without dead ends: 306223 [2022-01-18 00:36:57,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:36:57,411 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 318 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:36:57,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 436 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:36:57,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306223 states. [2022-01-18 00:37:08,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306223 to 250378. [2022-01-18 00:37:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250378 states, 250377 states have (on average 6.5195644967389175) internal successors, (1632349), 250377 states have internal predecessors, (1632349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250378 states to 250378 states and 1632349 transitions. [2022-01-18 00:37:12,955 INFO L78 Accepts]: Start accepts. Automaton has 250378 states and 1632349 transitions. Word has length 130 [2022-01-18 00:37:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:37:12,955 INFO L470 AbstractCegarLoop]: Abstraction has 250378 states and 1632349 transitions. [2022-01-18 00:37:12,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 250378 states and 1632349 transitions. [2022-01-18 00:37:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 00:37:15,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:37:15,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:37:15,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 00:37:15,040 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:37:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:37:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2102010711, now seen corresponding path program 1 times [2022-01-18 00:37:15,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:37:15,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281371497] [2022-01-18 00:37:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:37:15,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:37:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:37:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 00:37:15,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:37:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281371497] [2022-01-18 00:37:15,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281371497] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:37:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259634527] [2022-01-18 00:37:15,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:37:15,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:37:15,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:37:15,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:37:15,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 00:37:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:37:15,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:37:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:37:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 00:37:15,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 00:37:15,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259634527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:37:15,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 00:37:15,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2022-01-18 00:37:15,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532115388] [2022-01-18 00:37:15,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:37:15,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:37:15,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:37:15,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:37:15,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:37:15,491 INFO L87 Difference]: Start difference. First operand 250378 states and 1632349 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:37:19,858 INFO L93 Difference]: Finished difference Result 289936 states and 1870791 transitions. [2022-01-18 00:37:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:37:19,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 00:37:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:37:22,419 INFO L225 Difference]: With dead ends: 289936 [2022-01-18 00:37:22,419 INFO L226 Difference]: Without dead ends: 272785 [2022-01-18 00:37:22,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-01-18 00:37:22,420 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 263 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:37:22,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 572 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:37:22,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272785 states. [2022-01-18 00:37:31,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272785 to 248872. [2022-01-18 00:37:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248872 states, 248871 states have (on average 6.504767530166231) internal successors, (1618848), 248871 states have internal predecessors, (1618848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248872 states to 248872 states and 1618848 transitions. [2022-01-18 00:37:35,635 INFO L78 Accepts]: Start accepts. Automaton has 248872 states and 1618848 transitions. Word has length 130 [2022-01-18 00:37:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:37:35,635 INFO L470 AbstractCegarLoop]: Abstraction has 248872 states and 1618848 transitions. [2022-01-18 00:37:35,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 248872 states and 1618848 transitions. [2022-01-18 00:37:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 00:37:37,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:37:37,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:37:37,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-18 00:37:37,518 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,SelfDestructingSolverStorable15 [2022-01-18 00:37:37,518 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:37:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:37:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash -323821821, now seen corresponding path program 1 times [2022-01-18 00:37:37,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:37:37,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277618637] [2022-01-18 00:37:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:37:37,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:37:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:37:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:37:37,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:37:37,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277618637] [2022-01-18 00:37:37,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277618637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:37:37,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:37:37,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:37:37,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052751409] [2022-01-18 00:37:37,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:37:37,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:37:37,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:37:37,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:37:37,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:37:37,695 INFO L87 Difference]: Start difference. First operand 248872 states and 1618848 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:37:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:37:42,925 INFO L93 Difference]: Finished difference Result 314556 states and 2045861 transitions. [2022-01-18 00:37:42,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:37:42,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 00:37:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:37:47,263 INFO L225 Difference]: With dead ends: 314556 [2022-01-18 00:37:47,263 INFO L226 Difference]: Without dead ends: 314556 [2022-01-18 00:37:47,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:37:47,263 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 235 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:37:47,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 550 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:37:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314556 states. [2022-01-18 00:37:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314556 to 242524. [2022-01-18 00:37:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242524 states, 242523 states have (on average 6.503923339229681) internal successors, (1577351), 242523 states have internal predecessors, (1577351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242524 states to 242524 states and 1577351 transitions. [2022-01-18 00:38:01,256 INFO L78 Accepts]: Start accepts. Automaton has 242524 states and 1577351 transitions. Word has length 130 [2022-01-18 00:38:01,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:38:01,262 INFO L470 AbstractCegarLoop]: Abstraction has 242524 states and 1577351 transitions. [2022-01-18 00:38:01,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:01,262 INFO L276 IsEmpty]: Start isEmpty. Operand 242524 states and 1577351 transitions. [2022-01-18 00:38:02,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-18 00:38:02,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:38:02,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:38:02,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 00:38:02,886 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:38:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:38:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash 262934411, now seen corresponding path program 1 times [2022-01-18 00:38:02,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:38:02,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554033910] [2022-01-18 00:38:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:38:02,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:38:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:38:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 00:38:03,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:38:03,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554033910] [2022-01-18 00:38:03,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554033910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:38:03,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:38:03,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:38:03,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133322660] [2022-01-18 00:38:03,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:38:03,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:38:03,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:38:03,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:38:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:38:03,052 INFO L87 Difference]: Start difference. First operand 242524 states and 1577351 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:38:10,352 INFO L93 Difference]: Finished difference Result 414616 states and 2660133 transitions. [2022-01-18 00:38:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:38:10,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-01-18 00:38:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:38:14,950 INFO L225 Difference]: With dead ends: 414616 [2022-01-18 00:38:14,950 INFO L226 Difference]: Without dead ends: 347092 [2022-01-18 00:38:14,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:38:14,951 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 178 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:38:14,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 524 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:38:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347092 states. [2022-01-18 00:38:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347092 to 264202. [2022-01-18 00:38:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264202 states, 264201 states have (on average 6.477409245233742) internal successors, (1711338), 264201 states have internal predecessors, (1711338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264202 states to 264202 states and 1711338 transitions. [2022-01-18 00:38:32,062 INFO L78 Accepts]: Start accepts. Automaton has 264202 states and 1711338 transitions. Word has length 132 [2022-01-18 00:38:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:38:32,062 INFO L470 AbstractCegarLoop]: Abstraction has 264202 states and 1711338 transitions. [2022-01-18 00:38:32,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 264202 states and 1711338 transitions. [2022-01-18 00:38:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 00:38:34,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:38:34,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:38:34,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 00:38:34,270 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:38:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:38:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash 504528077, now seen corresponding path program 1 times [2022-01-18 00:38:34,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:38:34,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216272431] [2022-01-18 00:38:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:38:34,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:38:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:38:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 00:38:34,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:38:34,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216272431] [2022-01-18 00:38:34,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216272431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:38:34,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:38:34,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:38:34,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986885729] [2022-01-18 00:38:34,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:38:34,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:38:34,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:38:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:38:34,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:38:34,478 INFO L87 Difference]: Start difference. First operand 264202 states and 1711338 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:38:39,977 INFO L93 Difference]: Finished difference Result 324724 states and 2063569 transitions. [2022-01-18 00:38:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:38:39,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-01-18 00:38:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:38:43,078 INFO L225 Difference]: With dead ends: 324724 [2022-01-18 00:38:43,078 INFO L226 Difference]: Without dead ends: 301198 [2022-01-18 00:38:43,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:38:43,079 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 242 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:38:43,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 603 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:38:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301198 states. [2022-01-18 00:38:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301198 to 263722. [2022-01-18 00:38:54,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263722 states, 263721 states have (on average 6.4511055243988915) internal successors, (1701292), 263721 states have internal predecessors, (1701292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263722 states to 263722 states and 1701292 transitions. [2022-01-18 00:38:58,038 INFO L78 Accepts]: Start accepts. Automaton has 263722 states and 1701292 transitions. Word has length 134 [2022-01-18 00:38:58,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:38:58,038 INFO L470 AbstractCegarLoop]: Abstraction has 263722 states and 1701292 transitions. [2022-01-18 00:38:58,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:38:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 263722 states and 1701292 transitions. [2022-01-18 00:39:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 00:39:00,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:39:00,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:39:00,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 00:39:00,020 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:39:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:39:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1991485629, now seen corresponding path program 1 times [2022-01-18 00:39:00,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:39:00,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584079585] [2022-01-18 00:39:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:39:00,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:39:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:39:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 00:39:00,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:39:00,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584079585] [2022-01-18 00:39:00,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584079585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:39:00,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:39:00,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:39:00,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719238880] [2022-01-18 00:39:00,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:39:00,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:39:00,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:39:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:39:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:39:00,168 INFO L87 Difference]: Start difference. First operand 263722 states and 1701292 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:39:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:39:04,610 INFO L93 Difference]: Finished difference Result 301306 states and 1914208 transitions. [2022-01-18 00:39:04,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:39:04,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-01-18 00:39:04,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:39:07,974 INFO L225 Difference]: With dead ends: 301306 [2022-01-18 00:39:07,974 INFO L226 Difference]: Without dead ends: 278590 [2022-01-18 00:39:07,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:39:07,975 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 292 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:39:07,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 458 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:39:09,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278590 states. [2022-01-18 00:39:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278590 to 240844. [2022-01-18 00:39:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240844 states, 240843 states have (on average 6.451281540256516) internal successors, (1553746), 240843 states have internal predecessors, (1553746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:39:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240844 states to 240844 states and 1553746 transitions. [2022-01-18 00:39:21,751 INFO L78 Accepts]: Start accepts. Automaton has 240844 states and 1553746 transitions. Word has length 134 [2022-01-18 00:39:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:39:21,751 INFO L470 AbstractCegarLoop]: Abstraction has 240844 states and 1553746 transitions. [2022-01-18 00:39:21,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:39:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 240844 states and 1553746 transitions. [2022-01-18 00:39:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 00:39:23,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:39:23,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:39:23,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 00:39:23,355 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 00:39:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:39:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1126786517, now seen corresponding path program 2 times [2022-01-18 00:39:23,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:39:23,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787844141] [2022-01-18 00:39:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:39:23,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:39:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:39:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 00:39:23,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:39:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787844141] [2022-01-18 00:39:23,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787844141] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:39:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066568090] [2022-01-18 00:39:23,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 00:39:23,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:39:23,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:39:23,599 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:39:23,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 00:39:23,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 00:39:23,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:39:23,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:39:23,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:39:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 00:39:24,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:39:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 00:39:24,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066568090] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:39:24,496 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:39:24,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-01-18 00:39:24,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246885861] [2022-01-18 00:39:24,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:39:24,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 00:39:24,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:39:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 00:39:24,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-18 00:39:24,498 INFO L87 Difference]: Start difference. First operand 240844 states and 1553746 transitions. Second operand has 12 states, 12 states have (on average 15.25) internal successors, (183), 12 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:39:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:39:29,844 INFO L93 Difference]: Finished difference Result 316120 states and 2033116 transitions. [2022-01-18 00:39:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 00:39:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.25) internal successors, (183), 12 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-01-18 00:39:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:39:33,653 INFO L225 Difference]: With dead ends: 316120 [2022-01-18 00:39:33,653 INFO L226 Difference]: Without dead ends: 316120 [2022-01-18 00:39:33,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-01-18 00:39:33,654 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 667 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 00:39:33,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 911 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] Received shutdown request... [2022-01-18 00:39:34,385 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 00:39:34,385 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 00:39:35,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316120 states. [2022-01-18 00:39:35,309 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-01-18 00:39:35,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-18 00:39:35,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-01-18 00:39:35,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:39:35,519 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining) [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining) [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining) [2022-01-18 00:39:35,521 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining) [2022-01-18 00:39:35,523 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:39:35,524 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 00:39:35,524 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 00:39:35,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:39:35 BasicIcfg [2022-01-18 00:39:35,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 00:39:35,526 INFO L158 Benchmark]: Toolchain (without parser) took 522045.17ms. Allocated memory was 400.6MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 343.7MB in the beginning and 9.3GB in the end (delta: -9.0GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 400.6MB. Free memory was 360.1MB in the beginning and 360.0MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.11ms. Allocated memory was 400.6MB in the beginning and 549.5MB in the end (delta: 148.9MB). Free memory was 343.4MB in the beginning and 518.3MB in the end (delta: -174.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.43ms. Allocated memory is still 549.5MB. Free memory was 518.3MB in the beginning and 517.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: Boogie Preprocessor took 17.02ms. Allocated memory is still 549.5MB. Free memory was 516.2MB in the beginning and 515.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: RCFGBuilder took 329.82ms. Allocated memory is still 549.5MB. Free memory was 515.2MB in the beginning and 496.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 00:39:35,526 INFO L158 Benchmark]: TraceAbstraction took 521445.80ms. Allocated memory was 549.5MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 496.3MB in the beginning and 9.3GB in the end (delta: -8.8GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2022-01-18 00:39:35,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 400.6MB. Free memory was 360.1MB in the beginning and 360.0MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 219.11ms. Allocated memory was 400.6MB in the beginning and 549.5MB in the end (delta: 148.9MB). Free memory was 343.4MB in the beginning and 518.3MB in the end (delta: -174.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.43ms. Allocated memory is still 549.5MB. Free memory was 518.3MB in the beginning and 517.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 17.02ms. Allocated memory is still 549.5MB. Free memory was 516.2MB in the beginning and 515.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 329.82ms. Allocated memory is still 549.5MB. Free memory was 515.2MB in the beginning and 496.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 521445.80ms. Allocated memory was 549.5MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 496.3MB in the beginning and 9.3GB in the end (delta: -8.8GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 192 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 521.4s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 30.6s, AutomataDifference: 198.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6526 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6526 mSDsluCounter, 11488 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9526 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3806 IncrementalHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 2979 mSDtfsCounter, 3806 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1466 GetRequests, 1279 SyntacticMatches, 13 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331771occurred in iteration=12, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 277.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 1649828 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 3456 NumberOfCodeBlocks, 3454 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3937 ConstructedInterpolants, 0 QuantifiedInterpolants, 36857 SizeOfPredicates, 81 NumberOfNonLiveVariables, 2265 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 47/62 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !ENTRY org.eclipse.osgi 4 0 2022-01-18 00:39:35.554 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6932cc389/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6932cc389/.metadata/.log.