/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/safe010_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:03:53,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:03:53,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:03:53,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:03:53,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:03:53,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:03:53,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:03:53,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:03:53,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:03:53,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:03:53,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:03:53,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:03:53,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:03:53,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:03:53,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:03:53,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:03:53,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:03:53,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:03:53,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:03:53,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:03:53,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:03:53,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:03:53,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:03:53,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:03:53,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:03:53,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:03:53,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:03:53,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:03:53,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:03:53,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:03:53,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:03:53,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:03:53,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:03:53,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:03:53,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:03:53,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:03:53,410 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 [2020-10-11 15:03:53,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:03:53,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:03:53,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:03:53,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:03:53,458 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:03:53,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:03:53,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:03:53,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:03:53,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:03:53,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:03:53,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:03:53,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:03:53,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:03:53,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:03:53,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:03:53,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:03:53,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:03:53,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:03:53,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:03:53,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:03:53,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:03:53,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:03:53,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:03:53,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:03:53,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:03:53,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:03:53,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:03:53,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:03:53,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:03:53,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:03:53,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:03:53,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:03:53,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:03:53,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:03:53,833 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:03:53,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-10-11 15:03:53,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c05c5f/b861e69d0f324d8daa01059eca1fadc8/FLAGd264fa139 [2020-10-11 15:03:54,448 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:03:54,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2020-10-11 15:03:54,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c05c5f/b861e69d0f324d8daa01059eca1fadc8/FLAGd264fa139 [2020-10-11 15:03:54,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c05c5f/b861e69d0f324d8daa01059eca1fadc8 [2020-10-11 15:03:54,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:03:54,783 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:03:54,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:54,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:03:54,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:03:54,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:54" (1/1) ... [2020-10-11 15:03:54,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d10fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:54, skipping insertion in model container [2020-10-11 15:03:54,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:54" (1/1) ... [2020-10-11 15:03:54,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:03:54,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:03:55,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:55,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:03:55,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:55,425 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:03:55,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55 WrapperNode [2020-10-11 15:03:55,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:55,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:55,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:03:55,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:03:55,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:55,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:03:55,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:03:55,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:03:55,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (1/1) ... [2020-10-11 15:03:55,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:03:55,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:03:55,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:03:55,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:03:55,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (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 [2020-10-11 15:03:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:03:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:03:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:03:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:03:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:03:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:03:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:03:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:03:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:03:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:03:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:03:55,578 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:03:55,915 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:03:55,915 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:03:55,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:55 BoogieIcfgContainer [2020-10-11 15:03:55,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:03:55,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:03:55,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:03:55,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:03:55,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:03:54" (1/3) ... [2020-10-11 15:03:55,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d55d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:55, skipping insertion in model container [2020-10-11 15:03:55,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:55" (2/3) ... [2020-10-11 15:03:55,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d55d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:55, skipping insertion in model container [2020-10-11 15:03:55,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:55" (3/3) ... [2020-10-11 15:03:55,936 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2020-10-11 15:03:55,952 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:03:55,953 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:03:55,960 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:03:55,961 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:03:55,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,995 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:55,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:56,002 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:56,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:56,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:56,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:56,019 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 15:03:56,040 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:03:56,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:03:56,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:03:56,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:03:56,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:03:56,042 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:03:56,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:03:56,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:03:56,055 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:03:56,058 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-11 15:03:56,061 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-11 15:03:56,063 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-11 15:03:56,100 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-11 15:03:56,101 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:03:56,106 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 37 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. [2020-10-11 15:03:56,109 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-11 15:03:57,437 INFO L132 LiptonReduction]: Checked pairs total: 1289 [2020-10-11 15:03:57,438 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-11 15:03:57,445 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-11 15:03:57,459 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-11 15:03:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-11 15:03:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 15:03:57,469 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:57,470 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-11 15:03:57,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:57,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-10-11 15:03:57,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:57,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323431719] [2020-10-11 15:03:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:57,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323431719] [2020-10-11 15:03:57,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:57,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:03:57,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709140060] [2020-10-11 15:03:57,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:57,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:57,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:57,713 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-11 15:03:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:57,746 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-11 15:03:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:57,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-11 15:03:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:57,759 INFO L225 Difference]: With dead ends: 70 [2020-10-11 15:03:57,759 INFO L226 Difference]: Without dead ends: 54 [2020-10-11 15:03:57,761 INFO L673 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 [2020-10-11 15:03:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-11 15:03:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-11 15:03:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-11 15:03:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-11 15:03:57,804 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-11 15:03:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:57,804 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-11 15:03:57,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-11 15:03:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-11 15:03:57,805 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:57,805 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:57,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:03:57,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:57,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:57,806 INFO L82 PathProgramCache]: Analyzing trace with hash 417538412, now seen corresponding path program 1 times [2020-10-11 15:03:57,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:57,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288729913] [2020-10-11 15:03:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:57,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288729913] [2020-10-11 15:03:57,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:57,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:57,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786151795] [2020-10-11 15:03:57,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:57,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:57,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:57,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:57,897 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-11 15:03:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:57,922 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-11 15:03:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:03:57,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-11 15:03:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:57,924 INFO L225 Difference]: With dead ends: 60 [2020-10-11 15:03:57,924 INFO L226 Difference]: Without dead ends: 36 [2020-10-11 15:03:57,925 INFO L673 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 [2020-10-11 15:03:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-11 15:03:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-11 15:03:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 15:03:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-11 15:03:57,932 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-11 15:03:57,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:57,932 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-11 15:03:57,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-11 15:03:57,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:03:57,933 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:57,933 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:57,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:03:57,934 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:57,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:57,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-10-11 15:03:57,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:57,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911271730] [2020-10-11 15:03:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:58,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911271730] [2020-10-11 15:03:58,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:58,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:58,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423976663] [2020-10-11 15:03:58,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:58,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:58,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:58,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:58,052 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-11 15:03:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:58,090 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-11 15:03:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:03:58,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:03:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:58,093 INFO L225 Difference]: With dead ends: 39 [2020-10-11 15:03:58,093 INFO L226 Difference]: Without dead ends: 29 [2020-10-11 15:03:58,093 INFO L673 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 [2020-10-11 15:03:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-11 15:03:58,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-11 15:03:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-11 15:03:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-11 15:03:58,098 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-11 15:03:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:58,099 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-11 15:03:58,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:58,101 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-11 15:03:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:03:58,102 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:58,102 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:58,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:03:58,102 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:58,103 INFO L82 PathProgramCache]: Analyzing trace with hash 419248155, now seen corresponding path program 1 times [2020-10-11 15:03:58,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:58,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549184906] [2020-10-11 15:03:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:58,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549184906] [2020-10-11 15:03:58,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:58,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:03:58,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807719005] [2020-10-11 15:03:58,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:03:58,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:58,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:03:58,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:58,183 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-11 15:03:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:58,217 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-11 15:03:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:03:58,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-11 15:03:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:58,218 INFO L225 Difference]: With dead ends: 27 [2020-10-11 15:03:58,218 INFO L226 Difference]: Without dead ends: 22 [2020-10-11 15:03:58,219 INFO L673 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 [2020-10-11 15:03:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-11 15:03:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-11 15:03:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-11 15:03:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-11 15:03:58,222 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-11 15:03:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:58,223 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-11 15:03:58,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:03:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-11 15:03:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:03:58,224 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:58,224 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:58,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:03:58,225 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:58,225 INFO L82 PathProgramCache]: Analyzing trace with hash -830614075, now seen corresponding path program 1 times [2020-10-11 15:03:58,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:58,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116140167] [2020-10-11 15:03:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:58,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116140167] [2020-10-11 15:03:58,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:58,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:58,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576382761] [2020-10-11 15:03:58,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:58,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:58,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:58,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:58,260 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-11 15:03:58,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:58,265 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-11 15:03:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:58,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-11 15:03:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:58,266 INFO L225 Difference]: With dead ends: 21 [2020-10-11 15:03:58,266 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:03:58,266 INFO L673 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 [2020-10-11 15:03:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:03:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:03:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:03:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:03:58,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-11 15:03:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:58,268 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:03:58,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:03:58,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:03:58,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:03:58,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:03:58 BasicIcfg [2020-10-11 15:03:58,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:03:58,275 INFO L168 Benchmark]: Toolchain (without parser) took 3491.26 ms. Allocated memory was 250.1 MB in the beginning and 357.0 MB in the end (delta: 107.0 MB). Free memory was 202.1 MB in the beginning and 164.2 MB in the end (delta: 37.8 MB). Peak memory consumption was 144.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:58,276 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 250.1 MB. Free memory is still 223.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:03:58,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.53 ms. Allocated memory was 250.1 MB in the beginning and 307.8 MB in the end (delta: 57.7 MB). Free memory was 202.1 MB in the beginning and 261.7 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:58,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.23 ms. Allocated memory is still 307.8 MB. Free memory was 261.7 MB in the beginning and 258.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:58,278 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 ms. Allocated memory is still 307.8 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:03:58,279 INFO L168 Benchmark]: RCFGBuilder took 418.78 ms. Allocated memory is still 307.8 MB. Free memory was 258.6 MB in the beginning and 236.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:58,280 INFO L168 Benchmark]: TraceAbstraction took 2353.20 ms. Allocated memory was 307.8 MB in the beginning and 357.0 MB in the end (delta: 49.3 MB). Free memory was 236.8 MB in the beginning and 164.2 MB in the end (delta: 72.5 MB). Peak memory consumption was 121.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:58,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 250.1 MB. Free memory is still 223.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 643.53 ms. Allocated memory was 250.1 MB in the beginning and 307.8 MB in the end (delta: 57.7 MB). Free memory was 202.1 MB in the beginning and 261.7 MB in the end (delta: -59.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.23 ms. Allocated memory is still 307.8 MB. Free memory was 261.7 MB in the beginning and 258.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 22.87 ms. Allocated memory is still 307.8 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 418.78 ms. Allocated memory is still 307.8 MB. Free memory was 258.6 MB in the beginning and 236.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2353.20 ms. Allocated memory was 307.8 MB in the beginning and 357.0 MB in the end (delta: 49.3 MB). Free memory was 236.8 MB in the beginning and 164.2 MB in the end (delta: 72.5 MB). Peak memory consumption was 121.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 502 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1289 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 59 SDtfs, 43 SDslu, 54 SDs, 0 SdLazy, 44 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 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...