/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:41:08,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:41:08,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:41:08,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:41:08,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:41:08,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:41:08,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:41:08,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:41:08,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:41:08,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:41:08,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:41:08,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:41:08,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:41:08,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:41:08,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:41:08,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:41:08,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:41:08,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:41:08,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:41:08,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:41:08,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:41:08,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:41:08,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:41:08,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:41:08,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:41:08,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:41:08,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:41:08,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:41:08,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:41:08,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:41:08,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:41:08,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:41:08,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:41:08,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:41:08,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:41:08,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:41:08,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:41:09,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:41:09,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:41:09,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:41:09,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:41:09,029 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:41:09,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:41:09,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:41:09,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:41:09,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:41:09,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:41:09,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:41:09,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:41:09,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:41:09,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:41:09,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:41:09,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:41:09,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:41:09,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:41:09,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:41:09,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:41:09,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:41:09,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:41:09,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:41:09,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:41:09,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:41:09,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:41:09,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:41:09,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:41:09,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:41:09,362 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:41:09,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-15 18:41:09,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf030112/57d9d48fb96040f3ba46df3430ce870e/FLAGd31db0213 [2020-10-15 18:41:09,948 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:41:09,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-10-15 18:41:09,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf030112/57d9d48fb96040f3ba46df3430ce870e/FLAGd31db0213 [2020-10-15 18:41:10,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf030112/57d9d48fb96040f3ba46df3430ce870e [2020-10-15 18:41:10,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:41:10,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:41:10,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:41:10,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:41:10,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:41:10,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:10,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d743a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10, skipping insertion in model container [2020-10-15 18:41:10,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:10,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:41:10,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:41:10,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:41:10,785 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:41:10,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:41:10,958 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:41:10,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10 WrapperNode [2020-10-15 18:41:10,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:41:10,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:41:10,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:41:10,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:41:10,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:10,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:41:11,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:41:11,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:41:11,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:41:11,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... [2020-10-15 18:41:11,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:41:11,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:41:11,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:41:11,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:41:11,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:41:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:41:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:41:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:41:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:41:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:41:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:41:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:41:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:41:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:41:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:41:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:41:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:41:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:41:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:41:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:41:11,122 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:41:11,533 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:41:11,533 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:41:11,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:41:11 BoogieIcfgContainer [2020-10-15 18:41:11,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:41:11,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:41:11,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:41:11,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:41:11,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:41:10" (1/3) ... [2020-10-15 18:41:11,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133d18b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:41:11, skipping insertion in model container [2020-10-15 18:41:11,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:41:10" (2/3) ... [2020-10-15 18:41:11,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133d18b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:41:11, skipping insertion in model container [2020-10-15 18:41:11,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:41:11" (3/3) ... [2020-10-15 18:41:11,544 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-10-15 18:41:11,557 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:41:11,557 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:41:11,568 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:41:11,569 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:41:11,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,616 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,616 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,617 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,618 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,622 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,638 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,638 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,638 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,638 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,650 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,654 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:41:11,668 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:41:11,687 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:41:11,687 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:41:11,687 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:41:11,688 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:41:11,688 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:41:11,688 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:41:11,688 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:41:11,688 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:41:11,701 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:41:11,703 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 18:41:11,705 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 18:41:11,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-15 18:41:11,759 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-15 18:41:11,760 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:41:11,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-15 18:41:11,769 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-15 18:41:13,457 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-15 18:41:13,532 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-15 18:41:13,532 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-15 18:41:13,539 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-15 18:41:13,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-15 18:41:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-15 18:41:13,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:41:13,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:13,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:13,649 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-15 18:41:13,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:13,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738191341] [2020-10-15 18:41:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:13,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738191341] [2020-10-15 18:41:13,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:13,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:41:13,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761518587] [2020-10-15 18:41:13,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:41:13,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:13,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:41:13,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:41:13,874 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-15 18:41:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:13,962 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-15 18:41:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:41:13,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 18:41:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:14,003 INFO L225 Difference]: With dead ends: 1450 [2020-10-15 18:41:14,003 INFO L226 Difference]: Without dead ends: 1194 [2020-10-15 18:41:14,005 INFO L677 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 [2020-10-15 18:41:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-15 18:41:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-15 18:41:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-15 18:41:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-15 18:41:14,145 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-15 18:41:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:14,146 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-15 18:41:14,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:41:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-15 18:41:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:41:14,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:14,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:14,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:41:14,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-15 18:41:14,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:14,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442020543] [2020-10-15 18:41:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:14,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442020543] [2020-10-15 18:41:14,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:14,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:41:14,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945457068] [2020-10-15 18:41:14,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:41:14,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:14,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:41:14,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:41:14,305 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-15 18:41:14,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:14,352 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-15 18:41:14,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:41:14,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:41:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:14,363 INFO L225 Difference]: With dead ends: 1322 [2020-10-15 18:41:14,364 INFO L226 Difference]: Without dead ends: 1066 [2020-10-15 18:41:14,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:14,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-15 18:41:14,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-15 18:41:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-15 18:41:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-15 18:41:14,410 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-15 18:41:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:14,410 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-15 18:41:14,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:41:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-15 18:41:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:41:14,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:14,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:14,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:41:14,414 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:14,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:14,415 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-15 18:41:14,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:14,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274478169] [2020-10-15 18:41:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:14,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274478169] [2020-10-15 18:41:14,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:14,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:41:14,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851030251] [2020-10-15 18:41:14,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:41:14,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:14,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:41:14,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:41:14,508 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-15 18:41:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:14,542 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-15 18:41:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:41:14,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:41:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:14,551 INFO L225 Difference]: With dead ends: 1162 [2020-10-15 18:41:14,551 INFO L226 Difference]: Without dead ends: 970 [2020-10-15 18:41:14,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-15 18:41:14,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-15 18:41:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-15 18:41:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-15 18:41:14,591 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-15 18:41:14,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:14,591 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-15 18:41:14,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:41:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-15 18:41:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:41:14,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:14,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:14,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:41:14,595 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:14,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:14,595 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-10-15 18:41:14,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:14,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119408870] [2020-10-15 18:41:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:14,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119408870] [2020-10-15 18:41:14,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:14,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:41:14,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962349544] [2020-10-15 18:41:14,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:41:14,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:14,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:41:14,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:41:14,677 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-15 18:41:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:14,703 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-15 18:41:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:41:14,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:41:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:14,711 INFO L225 Difference]: With dead ends: 1042 [2020-10-15 18:41:14,711 INFO L226 Difference]: Without dead ends: 898 [2020-10-15 18:41:14,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-15 18:41:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-15 18:41:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-15 18:41:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-15 18:41:14,746 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-15 18:41:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:14,746 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-15 18:41:14,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:41:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-15 18:41:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:41:14,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:14,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:14,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:41:14,749 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-10-15 18:41:14,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:14,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860105870] [2020-10-15 18:41:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:14,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860105870] [2020-10-15 18:41:14,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:14,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:14,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013348862] [2020-10-15 18:41:14,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:14,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:14,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:14,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:14,811 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-10-15 18:41:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:14,859 INFO L93 Difference]: Finished difference Result 1186 states and 3999 transitions. [2020-10-15 18:41:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:14,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:41:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:14,865 INFO L225 Difference]: With dead ends: 1186 [2020-10-15 18:41:14,866 INFO L226 Difference]: Without dead ends: 574 [2020-10-15 18:41:14,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:41:14,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-15 18:41:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-10-15 18:41:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-10-15 18:41:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1836 transitions. [2020-10-15 18:41:14,891 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1836 transitions. Word has length 14 [2020-10-15 18:41:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:14,891 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 1836 transitions. [2020-10-15 18:41:14,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1836 transitions. [2020-10-15 18:41:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:41:14,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:14,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:14,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:41:14,894 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:14,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1594134132, now seen corresponding path program 1 times [2020-10-15 18:41:14,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:14,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50818508] [2020-10-15 18:41:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:14,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50818508] [2020-10-15 18:41:14,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:14,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:14,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678054184] [2020-10-15 18:41:14,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:14,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:14,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:14,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:14,970 INFO L87 Difference]: Start difference. First operand 574 states and 1836 transitions. Second operand 5 states. [2020-10-15 18:41:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:15,016 INFO L93 Difference]: Finished difference Result 694 states and 2162 transitions. [2020-10-15 18:41:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:15,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:41:15,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:15,021 INFO L225 Difference]: With dead ends: 694 [2020-10-15 18:41:15,022 INFO L226 Difference]: Without dead ends: 382 [2020-10-15 18:41:15,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:41:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-15 18:41:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-10-15 18:41:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-15 18:41:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1116 transitions. [2020-10-15 18:41:15,039 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1116 transitions. Word has length 15 [2020-10-15 18:41:15,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:15,039 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 1116 transitions. [2020-10-15 18:41:15,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1116 transitions. [2020-10-15 18:41:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:41:15,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:15,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:15,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:41:15,042 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:15,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1339206906, now seen corresponding path program 1 times [2020-10-15 18:41:15,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:15,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344572291] [2020-10-15 18:41:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:15,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344572291] [2020-10-15 18:41:15,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:15,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:15,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972109349] [2020-10-15 18:41:15,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:15,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:15,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:15,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:15,106 INFO L87 Difference]: Start difference. First operand 382 states and 1116 transitions. Second operand 5 states. [2020-10-15 18:41:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:15,154 INFO L93 Difference]: Finished difference Result 466 states and 1344 transitions. [2020-10-15 18:41:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:15,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 18:41:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:15,157 INFO L225 Difference]: With dead ends: 466 [2020-10-15 18:41:15,158 INFO L226 Difference]: Without dead ends: 154 [2020-10-15 18:41:15,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:41:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-15 18:41:15,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-15 18:41:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 18:41:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-15 18:41:15,166 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-15 18:41:15,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:15,167 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-15 18:41:15,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-15 18:41:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 18:41:15,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:41:15,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:41:15,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:41:15,168 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:41:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:41:15,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-10-15 18:41:15,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:41:15,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131042244] [2020-10-15 18:41:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:41:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:41:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:41:15,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131042244] [2020-10-15 18:41:15,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:41:15,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:41:15,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675200389] [2020-10-15 18:41:15,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:41:15,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:41:15,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:41:15,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:41:15,225 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-15 18:41:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:41:15,257 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-15 18:41:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:41:15,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 18:41:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:41:15,259 INFO L225 Difference]: With dead ends: 130 [2020-10-15 18:41:15,259 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:41:15,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:41:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:41:15,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:41:15,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:41:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:41:15,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 18:41:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:41:15,261 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:41:15,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:41:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:41:15,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:41:15,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:41:15,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:41:15 BasicIcfg [2020-10-15 18:41:15,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:41:15,267 INFO L168 Benchmark]: Toolchain (without parser) took 5050.39 ms. Allocated memory was 252.7 MB in the beginning and 426.8 MB in the end (delta: 174.1 MB). Free memory was 208.7 MB in the beginning and 331.9 MB in the end (delta: -123.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:41:15,268 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:41:15,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.26 ms. Allocated memory was 252.7 MB in the beginning and 316.1 MB in the end (delta: 63.4 MB). Free memory was 208.7 MB in the beginning and 269.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:41:15,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 316.1 MB. Free memory was 269.0 MB in the beginning and 266.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:41:15,270 INFO L168 Benchmark]: Boogie Preprocessor took 33.39 ms. Allocated memory is still 316.1 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:41:15,271 INFO L168 Benchmark]: RCFGBuilder took 492.01 ms. Allocated memory is still 316.1 MB. Free memory was 266.5 MB in the beginning and 239.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:41:15,272 INFO L168 Benchmark]: TraceAbstraction took 3728.48 ms. Allocated memory was 316.1 MB in the beginning and 426.8 MB in the end (delta: 110.6 MB). Free memory was 239.6 MB in the beginning and 331.9 MB in the end (delta: -92.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:41:15,276 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 742.26 ms. Allocated memory was 252.7 MB in the beginning and 316.1 MB in the end (delta: 63.4 MB). Free memory was 208.7 MB in the beginning and 269.0 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 316.1 MB. Free memory was 269.0 MB in the beginning and 266.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 33.39 ms. Allocated memory is still 316.1 MB. Free memory is still 266.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 492.01 ms. Allocated memory is still 316.1 MB. Free memory was 266.5 MB in the beginning and 239.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3728.48 ms. Allocated memory was 316.1 MB in the beginning and 426.8 MB in the end (delta: 110.6 MB). Free memory was 239.6 MB in the beginning and 331.9 MB in the end (delta: -92.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 234 SDtfs, 267 SDslu, 327 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...