/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/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:37:01,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:37:01,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:37:01,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:37:01,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:37:01,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:37:01,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:37:01,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:37:01,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:37:01,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:37:01,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:37:01,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:37:01,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:37:01,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:37:01,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:37:01,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:37:01,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:37:01,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:37:01,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:37:01,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:37:01,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:37:01,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:37:01,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:37:01,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:37:01,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:37:01,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:37:01,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:37:01,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:37:01,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:37:01,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:37:01,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:37:01,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:37:01,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:37:01,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:37:01,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:37:01,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:37:01,509 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 18:37:01,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:37:01,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:37:01,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:37:01,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:37:01,554 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:37:01,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:37:01,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:37:01,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:37:01,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:37:01,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:37:01,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:37:01,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:37:01,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:37:01,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:37:01,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:37:01,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:37:01,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:37:01,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:37:01,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:37:01,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:37:01,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:37:01,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:37:01,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:37:01,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:37:01,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:37:01,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:37:01,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:37:01,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:37:01,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:37:01,910 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:37:01,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-10-15 18:37:01,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d374dd449/708ed6e5870c49eabb5ae19f7d22b5d9/FLAG56dde4d62 [2020-10-15 18:37:02,546 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:37:02,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-10-15 18:37:02,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d374dd449/708ed6e5870c49eabb5ae19f7d22b5d9/FLAG56dde4d62 [2020-10-15 18:37:02,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d374dd449/708ed6e5870c49eabb5ae19f7d22b5d9 [2020-10-15 18:37:02,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:37:02,752 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:37:02,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:37:02,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:37:02,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:37:02,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:37:02" (1/1) ... [2020-10-15 18:37:02,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f640bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:02, skipping insertion in model container [2020-10-15 18:37:02,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:37:02" (1/1) ... [2020-10-15 18:37:02,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:37:02,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:37:03,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:37:03,197 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:37:03,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:37:03,463 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:37:03,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03 WrapperNode [2020-10-15 18:37:03,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:37:03,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:37:03,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:37:03,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:37:03,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:37:03,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:37:03,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:37:03,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:37:03,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (1/1) ... [2020-10-15 18:37:03,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:37:03,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:37:03,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:37:03,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:37:03,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (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 18:37:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:37:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:37:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:37:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:37:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:37:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:37:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:37:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:37:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:37:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:37:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:37:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:37:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:37:03,606 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 18:37:03,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:37:03,961 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:37:03,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:37:03 BoogieIcfgContainer [2020-10-15 18:37:03,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:37:03,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:37:03,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:37:03,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:37:03,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:37:02" (1/3) ... [2020-10-15 18:37:03,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57821fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:37:03, skipping insertion in model container [2020-10-15 18:37:03,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:03" (2/3) ... [2020-10-15 18:37:03,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57821fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:37:03, skipping insertion in model container [2020-10-15 18:37:03,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:37:03" (3/3) ... [2020-10-15 18:37:03,973 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2020-10-15 18:37:03,985 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:37:03,986 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:37:03,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:37:04,000 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:37:04,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,052 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:04,069 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:37:04,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:37:04,091 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:37:04,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:37:04,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:37:04,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:37:04,092 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:37:04,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:37:04,092 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:37:04,107 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:37:04,110 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:37:04,113 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:37:04,115 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:37:04,160 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:37:04,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:37:04,165 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:37:04,169 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:37:05,757 INFO L132 LiptonReduction]: Checked pairs total: 2936 [2020-10-15 18:37:05,757 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-15 18:37:05,764 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:37:05,794 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:37:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:37:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:37:05,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:05,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:05,806 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-10-15 18:37:05,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:05,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185648883] [2020-10-15 18:37:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,058 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 18:37:06,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185648883] [2020-10-15 18:37:06,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:37:06,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518796949] [2020-10-15 18:37:06,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:37:06,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:37:06,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:37:06,086 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:37:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,142 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:37:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:37:06,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:37:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,161 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:37:06,161 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:37:06,162 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 18:37:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:37:06,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:37:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:37:06,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:37:06,232 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:37:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,234 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:37:06,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:37:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:37:06,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:37:06,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:37:06,236 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash -225372059, now seen corresponding path program 1 times [2020-10-15 18:37:06,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560348504] [2020-10-15 18:37:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,305 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 18:37:06,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560348504] [2020-10-15 18:37:06,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:06,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039101279] [2020-10-15 18:37:06,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:37:06,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:37:06,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:37:06,309 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-15 18:37:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,333 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-15 18:37:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:37:06,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:37:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,336 INFO L225 Difference]: With dead ends: 202 [2020-10-15 18:37:06,336 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:37:06,337 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 18:37:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:37:06,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:37:06,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:37:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 18:37:06,355 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-15 18:37:06,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,356 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 18:37:06,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:37:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 18:37:06,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:37:06,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:37:06,358 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1603398907, now seen corresponding path program 1 times [2020-10-15 18:37:06,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216603014] [2020-10-15 18:37:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,430 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 18:37:06,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216603014] [2020-10-15 18:37:06,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:37:06,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708968445] [2020-10-15 18:37:06,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:37:06,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:37:06,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:37:06,433 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 18:37:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,440 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-10-15 18:37:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:37:06,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:37:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,443 INFO L225 Difference]: With dead ends: 194 [2020-10-15 18:37:06,443 INFO L226 Difference]: Without dead ends: 194 [2020-10-15 18:37:06,444 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 18:37:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-15 18:37:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-15 18:37:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-15 18:37:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-10-15 18:37:06,461 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-10-15 18:37:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,461 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-10-15 18:37:06,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:37:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-10-15 18:37:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:37:06,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:37:06,464 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1834242640, now seen corresponding path program 1 times [2020-10-15 18:37:06,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384138896] [2020-10-15 18:37:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,571 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 18:37:06,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384138896] [2020-10-15 18:37:06,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:06,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200334486] [2020-10-15 18:37:06,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:06,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:06,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:06,573 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-10-15 18:37:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,608 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-10-15 18:37:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:06,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:37:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,610 INFO L225 Difference]: With dead ends: 225 [2020-10-15 18:37:06,611 INFO L226 Difference]: Without dead ends: 161 [2020-10-15 18:37:06,611 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 18:37:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-15 18:37:06,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-10-15 18:37:06,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-15 18:37:06,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-10-15 18:37:06,620 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-10-15 18:37:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,620 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-10-15 18:37:06,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-10-15 18:37:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:37:06,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:37:06,623 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1941611660, now seen corresponding path program 1 times [2020-10-15 18:37:06,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750775479] [2020-10-15 18:37:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,683 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 18:37:06,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750775479] [2020-10-15 18:37:06,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:06,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530266871] [2020-10-15 18:37:06,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:06,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:06,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:06,685 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 5 states. [2020-10-15 18:37:06,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,730 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-15 18:37:06,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:37:06,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 18:37:06,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,732 INFO L225 Difference]: With dead ends: 160 [2020-10-15 18:37:06,732 INFO L226 Difference]: Without dead ends: 123 [2020-10-15 18:37:06,733 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 18:37:06,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-15 18:37:06,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-15 18:37:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-15 18:37:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-15 18:37:06,740 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-10-15 18:37:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,740 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-15 18:37:06,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-15 18:37:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:37:06,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:37:06,742 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1911316559, now seen corresponding path program 1 times [2020-10-15 18:37:06,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390077548] [2020-10-15 18:37:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,836 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 18:37:06,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390077548] [2020-10-15 18:37:06,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:37:06,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935960422] [2020-10-15 18:37:06,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:37:06,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:37:06,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:37:06,839 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 6 states. [2020-10-15 18:37:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,886 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-15 18:37:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:37:06,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 18:37:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,888 INFO L225 Difference]: With dead ends: 118 [2020-10-15 18:37:06,888 INFO L226 Difference]: Without dead ends: 108 [2020-10-15 18:37:06,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:37:06,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-15 18:37:06,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-15 18:37:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-15 18:37:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-15 18:37:06,893 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-15 18:37:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,893 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-15 18:37:06,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:37:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-15 18:37:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:37:06,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:37:06,895 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1074918836, now seen corresponding path program 1 times [2020-10-15 18:37:06,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104322435] [2020-10-15 18:37:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,930 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 18:37:06,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104322435] [2020-10-15 18:37:06,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:06,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466775759] [2020-10-15 18:37:06,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:06,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:06,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:06,933 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-15 18:37:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:06,947 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-15 18:37:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:37:06,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:37:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:06,948 INFO L225 Difference]: With dead ends: 133 [2020-10-15 18:37:06,948 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 18:37:06,949 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 18:37:06,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 18:37:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 18:37:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 18:37:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-15 18:37:06,952 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-15 18:37:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:06,952 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-15 18:37:06,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-15 18:37:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:37:06,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:06,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:06,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:37:06,954 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 2 times [2020-10-15 18:37:06,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:06,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165617568] [2020-10-15 18:37:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:06,987 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 18:37:06,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165617568] [2020-10-15 18:37:06,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:06,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:06,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430749472] [2020-10-15 18:37:06,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:06,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:06,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:06,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:06,990 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-15 18:37:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:07,008 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2020-10-15 18:37:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:37:07,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:37:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:07,009 INFO L225 Difference]: With dead ends: 63 [2020-10-15 18:37:07,010 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 18:37:07,010 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 18:37:07,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 18:37:07,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 18:37:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 18:37:07,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-15 18:37:07,012 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-10-15 18:37:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:07,013 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-15 18:37:07,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-15 18:37:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:37:07,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:07,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:07,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:37:07,014 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:07,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:07,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1965606506, now seen corresponding path program 3 times [2020-10-15 18:37:07,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:07,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126165754] [2020-10-15 18:37:07,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:07,044 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 18:37:07,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126165754] [2020-10-15 18:37:07,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:07,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:07,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044771599] [2020-10-15 18:37:07,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:07,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:07,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:07,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:07,047 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-15 18:37:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:07,066 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-10-15 18:37:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:07,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:37:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:07,068 INFO L225 Difference]: With dead ends: 56 [2020-10-15 18:37:07,068 INFO L226 Difference]: Without dead ends: 35 [2020-10-15 18:37:07,068 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 18:37:07,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-15 18:37:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-15 18:37:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-15 18:37:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-10-15 18:37:07,070 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-10-15 18:37:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:07,070 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-10-15 18:37:07,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-10-15 18:37:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:37:07,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:07,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:07,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:37:07,072 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash -828702424, now seen corresponding path program 4 times [2020-10-15 18:37:07,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:07,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631171075] [2020-10-15 18:37:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:07,104 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 18:37:07,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631171075] [2020-10-15 18:37:07,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:07,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:07,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439523723] [2020-10-15 18:37:07,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:07,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:07,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:07,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:07,106 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-10-15 18:37:07,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:07,122 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-10-15 18:37:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:37:07,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:37:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:07,123 INFO L225 Difference]: With dead ends: 34 [2020-10-15 18:37:07,123 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:37:07,123 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 18:37:07,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:37:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:37:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:37:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:37:07,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:37:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:07,125 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:37:07,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:37:07,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:37:07,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:37:07,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:37:07 BasicIcfg [2020-10-15 18:37:07,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:37:07,132 INFO L168 Benchmark]: Toolchain (without parser) took 4380.13 ms. Allocated memory was 245.4 MB in the beginning and 365.4 MB in the end (delta: 120.1 MB). Free memory was 201.4 MB in the beginning and 227.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 93.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,133 INFO L168 Benchmark]: CDTParser took 0.25 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 18:37:07,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.74 ms. Allocated memory was 245.4 MB in the beginning and 298.3 MB in the end (delta: 53.0 MB). Free memory was 201.4 MB in the beginning and 253.4 MB in the end (delta: -52.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 298.3 MB. Free memory was 253.4 MB in the beginning and 250.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,135 INFO L168 Benchmark]: Boogie Preprocessor took 29.64 ms. Allocated memory is still 298.3 MB. Free memory was 250.8 MB in the beginning and 248.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,136 INFO L168 Benchmark]: RCFGBuilder took 421.76 ms. Allocated memory is still 298.3 MB. Free memory was 248.3 MB in the beginning and 226.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,137 INFO L168 Benchmark]: TraceAbstraction took 3164.31 ms. Allocated memory was 298.3 MB in the beginning and 365.4 MB in the end (delta: 67.1 MB). Free memory was 226.5 MB in the beginning and 227.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 65.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:07,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 711.74 ms. Allocated memory was 245.4 MB in the beginning and 298.3 MB in the end (delta: 53.0 MB). Free memory was 201.4 MB in the beginning and 253.4 MB in the end (delta: -52.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 298.3 MB. Free memory was 253.4 MB in the beginning and 250.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.64 ms. Allocated memory is still 298.3 MB. Free memory was 250.8 MB in the beginning and 248.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 421.76 ms. Allocated memory is still 298.3 MB. Free memory was 248.3 MB in the beginning and 226.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3164.31 ms. Allocated memory was 298.3 MB in the beginning and 365.4 MB in the end (delta: 67.1 MB). Free memory was 226.5 MB in the beginning and 227.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 65.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 851 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2936 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 205 SDtfs, 151 SDslu, 247 SDs, 0 SdLazy, 129 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...