/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:39:53,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:39:53,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:39:53,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:39:53,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:39:53,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:39:53,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:39:53,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:39:53,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:39:53,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:39:53,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:39:53,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:39:53,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:39:53,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:39:53,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:39:53,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:39:53,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:39:53,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:39:53,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:39:53,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:39:53,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:39:53,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:39:53,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:39:53,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:39:53,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:39:53,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:39:53,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:39:53,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:39:53,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:39:53,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:39:53,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:39:53,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:39:53,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:39:53,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:39:53,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:39:53,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:39:53,701 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 18:39:53,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:39:53,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:39:53,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:39:53,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:39:53,725 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:39:53,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:39:53,726 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:39:53,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:39:53,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:39:53,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:39:53,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:39:53,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:39:53,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:39:53,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:39:53,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:39:53,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:39:53,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:39:53,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:39:53,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:39:53,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:39:53,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:39:53,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:39:53,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:39:53,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:39:53,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:39:53,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:39:53,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:39:53,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:39:53,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:39:53,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:39:54,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:39:54,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:39:54,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:39:54,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:39:54,084 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:39:54,085 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-15 18:39:54,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972fa1f8a/52b7bb63f56c44cb8b13c14829a18d48/FLAGac022a2b2 [2020-10-15 18:39:54,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:39:54,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-15 18:39:54,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972fa1f8a/52b7bb63f56c44cb8b13c14829a18d48/FLAGac022a2b2 [2020-10-15 18:39:54,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/972fa1f8a/52b7bb63f56c44cb8b13c14829a18d48 [2020-10-15 18:39:55,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:39:55,013 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:39:55,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:39:55,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:39:55,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:39:55,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fad9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55, skipping insertion in model container [2020-10-15 18:39:55,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:39:55,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:39:55,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:39:55,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:39:55,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:39:55,845 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:39:55,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55 WrapperNode [2020-10-15 18:39:55,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:39:55,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:39:55,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:39:55,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:39:55,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:39:55,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:39:55,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:39:55,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:39:55,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (1/1) ... [2020-10-15 18:39:55,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:39:55,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:39:55,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:39:55,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:39:55,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (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 18:39:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:39:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:39:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:39:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:39:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:39:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:39:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:39:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:39:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:39:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:39:56,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:39:56,016 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 18:39:56,351 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:39:56,351 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:39:56,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:39:56 BoogieIcfgContainer [2020-10-15 18:39:56,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:39:56,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:39:56,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:39:56,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:39:56,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:39:55" (1/3) ... [2020-10-15 18:39:56,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b16e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:39:56, skipping insertion in model container [2020-10-15 18:39:56,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:39:55" (2/3) ... [2020-10-15 18:39:56,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b16e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:39:56, skipping insertion in model container [2020-10-15 18:39:56,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:39:56" (3/3) ... [2020-10-15 18:39:56,362 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-10-15 18:39:56,372 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:39:56,372 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:39:56,379 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:39:56,380 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:39:56,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,402 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,408 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,409 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,413 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,413 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,414 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,414 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:39:56,428 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 18:39:56,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:39:56,446 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:39:56,447 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:39:56,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:39:56,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:39:56,447 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:39:56,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:39:56,447 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:39:56,458 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:39:56,461 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-15 18:39:56,464 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-15 18:39:56,466 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-15 18:39:56,503 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-15 18:39:56,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:39:56,511 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-15 18:39:56,513 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-15 18:39:57,781 INFO L132 LiptonReduction]: Checked pairs total: 1233 [2020-10-15 18:39:57,781 INFO L134 LiptonReduction]: Total number of compositions: 49 [2020-10-15 18:39:57,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-15 18:39:57,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-15 18:39:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-15 18:39:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 18:39:57,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:57,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 18:39:57,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:57,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:57,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-10-15 18:39:57,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:57,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50040949] [2020-10-15 18:39:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:58,026 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 18:39:58,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50040949] [2020-10-15 18:39:58,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:58,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:39:58,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501050683] [2020-10-15 18:39:58,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:39:58,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:58,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:39:58,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:58,050 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-15 18:39:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:58,085 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-15 18:39:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:39:58,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 18:39:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:58,098 INFO L225 Difference]: With dead ends: 72 [2020-10-15 18:39:58,098 INFO L226 Difference]: Without dead ends: 56 [2020-10-15 18:39:58,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-15 18:39:58,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-15 18:39:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-15 18:39:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-15 18:39:58,141 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-15 18:39:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:58,142 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-15 18:39:58,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:39:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-15 18:39:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 18:39:58,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:58,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:58,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:39:58,144 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:58,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:58,144 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-10-15 18:39:58,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:58,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291596052] [2020-10-15 18:39:58,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:58,285 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 18:39:58,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291596052] [2020-10-15 18:39:58,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:58,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:39:58,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19139701] [2020-10-15 18:39:58,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:39:58,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:58,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:39:58,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:39:58,290 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-10-15 18:39:58,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:58,345 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-10-15 18:39:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:39:58,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 18:39:58,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:58,348 INFO L225 Difference]: With dead ends: 56 [2020-10-15 18:39:58,349 INFO L226 Difference]: Without dead ends: 40 [2020-10-15 18:39:58,350 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 18:39:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-15 18:39:58,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-15 18:39:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-15 18:39:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-15 18:39:58,368 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-10-15 18:39:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:58,369 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-15 18:39:58,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:39:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-15 18:39:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:39:58,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:58,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:58,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:39:58,373 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:58,373 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times [2020-10-15 18:39:58,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:58,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107426130] [2020-10-15 18:39:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:58,462 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 18:39:58,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107426130] [2020-10-15 18:39:58,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:58,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:39:58,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557003239] [2020-10-15 18:39:58,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:39:58,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:58,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:39:58,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:39:58,465 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-15 18:39:58,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:58,508 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-15 18:39:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:39:58,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 18:39:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:58,510 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:39:58,510 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 18:39:58,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:39:58,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 18:39:58,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-15 18:39:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 18:39:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-15 18:39:58,515 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-15 18:39:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:58,515 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-15 18:39:58,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:39:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-15 18:39:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:39:58,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:58,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:58,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:39:58,517 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-10-15 18:39:58,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:58,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556729986] [2020-10-15 18:39:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:58,556 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 18:39:58,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556729986] [2020-10-15 18:39:58,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:58,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:39:58,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774762938] [2020-10-15 18:39:58,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:39:58,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:58,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:39:58,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:58,558 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-10-15 18:39:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:58,566 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-15 18:39:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:39:58,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:39:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:58,567 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:39:58,567 INFO L226 Difference]: Without dead ends: 16 [2020-10-15 18:39:58,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:39:58,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-15 18:39:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-15 18:39:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-15 18:39:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-15 18:39:58,570 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-15 18:39:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:58,571 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-15 18:39:58,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:39:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-15 18:39:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:39:58,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:39:58,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:39:58,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:39:58,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:39:58,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:39:58,573 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-10-15 18:39:58,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:39:58,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240114641] [2020-10-15 18:39:58,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:39:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:39:58,609 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 18:39:58,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240114641] [2020-10-15 18:39:58,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:39:58,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:39:58,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466045517] [2020-10-15 18:39:58,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:39:58,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:39:58,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:39:58,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:39:58,612 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-10-15 18:39:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:39:58,623 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-15 18:39:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:39:58,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:39:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:39:58,624 INFO L225 Difference]: With dead ends: 15 [2020-10-15 18:39:58,624 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:39:58,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:39:58,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:39:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:39:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:39:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:39:58,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-15 18:39:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:39:58,627 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:39:58,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:39:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:39:58,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:39:58,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:39:58,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:39:58 BasicIcfg [2020-10-15 18:39:58,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:39:58,634 INFO L168 Benchmark]: Toolchain (without parser) took 3620.88 ms. Allocated memory was 245.4 MB in the beginning and 350.2 MB in the end (delta: 104.9 MB). Free memory was 199.9 MB in the beginning and 165.7 MB in the end (delta: 34.2 MB). Peak memory consumption was 139.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,635 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 245.4 MB. Free memory is still 221.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:39:58,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.35 ms. Allocated memory was 245.4 MB in the beginning and 296.7 MB in the end (delta: 51.4 MB). Free memory was 199.9 MB in the beginning and 252.1 MB in the end (delta: -52.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 296.7 MB. Free memory was 252.1 MB in the beginning and 249.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,638 INFO L168 Benchmark]: Boogie Preprocessor took 46.30 ms. Allocated memory is still 296.7 MB. Free memory was 249.6 MB in the beginning and 247.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,639 INFO L168 Benchmark]: RCFGBuilder took 410.00 ms. Allocated memory is still 296.7 MB. Free memory was 247.1 MB in the beginning and 227.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,640 INFO L168 Benchmark]: TraceAbstraction took 2276.97 ms. Allocated memory was 296.7 MB in the beginning and 350.2 MB in the end (delta: 53.5 MB). Free memory was 227.8 MB in the beginning and 165.7 MB in the end (delta: 62.1 MB). Peak memory consumption was 115.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:39:58,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 245.4 MB. Free memory is still 221.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 833.35 ms. Allocated memory was 245.4 MB in the beginning and 296.7 MB in the end (delta: 51.4 MB). Free memory was 199.9 MB in the beginning and 252.1 MB in the end (delta: -52.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 296.7 MB. Free memory was 252.1 MB in the beginning and 249.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 46.30 ms. Allocated memory is still 296.7 MB. Free memory was 249.6 MB in the beginning and 247.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 410.00 ms. Allocated memory is still 296.7 MB. Free memory was 247.1 MB in the beginning and 227.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2276.97 ms. Allocated memory was 296.7 MB in the beginning and 350.2 MB in the end (delta: 53.5 MB). Free memory was 227.8 MB in the beginning and 165.7 MB in the end (delta: 62.1 MB). Peak memory consumption was 115.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 490 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 31 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 1233 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...