/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/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:07:21,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:07:21,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:07:21,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:07:21,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:07:21,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:07:21,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:07:21,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:07:21,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:07:21,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:07:21,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:07:21,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:07:21,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:07:21,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:07:21,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:07:21,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:07:21,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:07:21,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:07:21,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:07:21,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:07:21,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:07:21,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:07:21,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:07:21,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:07:21,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:07:21,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:07:21,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:07:21,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:07:21,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:07:21,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:07:21,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:07:21,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:07:21,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:07:21,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:07:21,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:07:21,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:07:21,463 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 15:07:21,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:07:21,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:07:21,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:07:21,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:07:21,506 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:07:21,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:07:21,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:07:21,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:07:21,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:07:21,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:07:21,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:07:21,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:07:21,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:07:21,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:07:21,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:07:21,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:07:21,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:07:21,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:07:21,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:07:21,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:07:21,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:07:21,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:07:21,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:07:21,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:07:21,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:07:21,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:07:21,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:07:21,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:07:21,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:07:21,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:07:21,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:07:21,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:07:21,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:07:21,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:07:21,831 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:07:21,831 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-10-11 15:07:21,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814327c90/94eb544e513c4c0faa95f12d6653a624/FLAGf170acbca [2020-10-11 15:07:22,426 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:07:22,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-10-11 15:07:22,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814327c90/94eb544e513c4c0faa95f12d6653a624/FLAGf170acbca [2020-10-11 15:07:22,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814327c90/94eb544e513c4c0faa95f12d6653a624 [2020-10-11 15:07:22,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:07:22,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:07:22,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:22,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:07:22,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:07:22,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:22" (1/1) ... [2020-10-11 15:07:22,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e1c5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:22, skipping insertion in model container [2020-10-11 15:07:22,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:22" (1/1) ... [2020-10-11 15:07:22,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:07:22,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:07:23,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:23,320 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:07:23,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:23,473 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:07:23,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23 WrapperNode [2020-10-11 15:07:23,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:23,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:23,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:07:23,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:07:23,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:23,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:07:23,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:07:23,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:07:23,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:07:23,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:07:23,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:07:23,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:07:23,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (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 15:07:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:07:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:07:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:07:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:07:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:07:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:07:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:07:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:07:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:07:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:07:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:07:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:07:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:07:23,619 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 15:07:23,993 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:07:23,994 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:07:23,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:23 BoogieIcfgContainer [2020-10-11 15:07:23,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:07:23,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:07:23,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:07:24,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:07:24,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:07:22" (1/3) ... [2020-10-11 15:07:24,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023fc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:24, skipping insertion in model container [2020-10-11 15:07:24,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (2/3) ... [2020-10-11 15:07:24,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023fc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:24, skipping insertion in model container [2020-10-11 15:07:24,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:23" (3/3) ... [2020-10-11 15:07:24,005 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2020-10-11 15:07:24,015 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:07:24,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:07:24,022 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:07:24,023 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:07:24,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,051 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,052 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,053 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,053 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,060 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,060 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,069 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,070 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,091 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:07:24,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:07:24,112 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:07:24,112 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:07:24,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:07:24,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:07:24,113 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:07:24,113 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:07:24,113 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:07:24,127 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:07:24,130 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,133 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,135 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,181 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:07:24,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:07:24,186 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 46 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. [2020-10-11 15:07:24,189 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:07:25,530 INFO L132 LiptonReduction]: Checked pairs total: 2334 [2020-10-11 15:07:25,530 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-11 15:07:25,539 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-11 15:07:25,579 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-11 15:07:25,581 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-11 15:07:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:07:25,607 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:25,615 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:25,615 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:25,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-11 15:07:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:25,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548974320] [2020-10-11 15:07:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:25,802 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 15:07:25,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548974320] [2020-10-11 15:07:25,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:25,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:25,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059019221] [2020-10-11 15:07:25,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:07:25,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:25,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:07:25,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:07:25,830 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-11 15:07:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:25,863 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-11 15:07:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:07:25,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-11 15:07:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:25,892 INFO L225 Difference]: With dead ends: 362 [2020-10-11 15:07:25,892 INFO L226 Difference]: Without dead ends: 298 [2020-10-11 15:07:25,894 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:07:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-11 15:07:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-11 15:07:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-11 15:07:25,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-11 15:07:25,981 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-11 15:07:25,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:25,983 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-11 15:07:25,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:07:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-11 15:07:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:07:25,985 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:25,985 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:25,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:07:25,986 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:25,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:25,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-11 15:07:25,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:25,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348899557] [2020-10-11 15:07:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,119 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 15:07:26,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348899557] [2020-10-11 15:07:26,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:26,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200728713] [2020-10-11 15:07:26,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,123 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-11 15:07:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,160 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-11 15:07:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:07:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,164 INFO L225 Difference]: With dead ends: 330 [2020-10-11 15:07:26,164 INFO L226 Difference]: Without dead ends: 266 [2020-10-11 15:07:26,165 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 15:07:26,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-11 15:07:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-11 15:07:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-11 15:07:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-11 15:07:26,187 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-11 15:07:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,187 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-11 15:07:26,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-11 15:07:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:07:26,190 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,190 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:07:26,190 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,191 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 1 times [2020-10-11 15:07:26,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260763292] [2020-10-11 15:07:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,287 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 15:07:26,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260763292] [2020-10-11 15:07:26,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037513314] [2020-10-11 15:07:26,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,290 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-11 15:07:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,356 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions. [2020-10-11 15:07:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:26,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-11 15:07:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,358 INFO L225 Difference]: With dead ends: 314 [2020-10-11 15:07:26,358 INFO L226 Difference]: Without dead ends: 170 [2020-10-11 15:07:26,359 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:07:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-11 15:07:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-11 15:07:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-11 15:07:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-10-11 15:07:26,369 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10 [2020-10-11 15:07:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,369 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-10-11 15:07:26,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-10-11 15:07:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:07:26,371 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,371 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:07:26,372 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 1 times [2020-10-11 15:07:26,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030788321] [2020-10-11 15:07:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,420 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 15:07:26,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030788321] [2020-10-11 15:07:26,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973584140] [2020-10-11 15:07:26,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,423 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-10-11 15:07:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,452 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions. [2020-10-11 15:07:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:07:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,454 INFO L225 Difference]: With dead ends: 183 [2020-10-11 15:07:26,454 INFO L226 Difference]: Without dead ends: 143 [2020-10-11 15:07:26,455 INFO L673 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 [2020-10-11 15:07:26,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-11 15:07:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-10-11 15:07:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-11 15:07:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions. [2020-10-11 15:07:26,462 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12 [2020-10-11 15:07:26,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,462 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions. [2020-10-11 15:07:26,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions. [2020-10-11 15:07:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:07:26,463 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,464 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:07:26,464 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 1 times [2020-10-11 15:07:26,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698073447] [2020-10-11 15:07:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,515 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 15:07:26,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698073447] [2020-10-11 15:07:26,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:26,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008323493] [2020-10-11 15:07:26,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,517 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 5 states. [2020-10-11 15:07:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,554 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions. [2020-10-11 15:07:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:26,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:07:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,556 INFO L225 Difference]: With dead ends: 129 [2020-10-11 15:07:26,556 INFO L226 Difference]: Without dead ends: 104 [2020-10-11 15:07:26,556 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 15:07:26,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-11 15:07:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-11 15:07:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-11 15:07:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions. [2020-10-11 15:07:26,561 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13 [2020-10-11 15:07:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,561 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions. [2020-10-11 15:07:26,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2020-10-11 15:07:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:07:26,562 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,562 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:07:26,563 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 1 times [2020-10-11 15:07:26,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130082243] [2020-10-11 15:07:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,613 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 15:07:26,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130082243] [2020-10-11 15:07:26,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 15:07:26,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532941620] [2020-10-11 15:07:26,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:07:26,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:07:26,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:26,615 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 6 states. [2020-10-11 15:07:26,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,665 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions. [2020-10-11 15:07:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:07:26,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-11 15:07:26,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,666 INFO L225 Difference]: With dead ends: 93 [2020-10-11 15:07:26,666 INFO L226 Difference]: Without dead ends: 85 [2020-10-11 15:07:26,667 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-11 15:07:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-11 15:07:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-11 15:07:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-11 15:07:26,670 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15 [2020-10-11 15:07:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,670 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-11 15:07:26,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:07:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-11 15:07:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:07:26,671 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,672 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:07:26,672 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,672 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 1 times [2020-10-11 15:07:26,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314350324] [2020-10-11 15:07:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,715 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 15:07:26,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314350324] [2020-10-11 15:07:26,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32668086] [2020-10-11 15:07:26,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,717 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-11 15:07:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,734 INFO L93 Difference]: Finished difference Result 117 states and 236 transitions. [2020-10-11 15:07:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:07:26,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-11 15:07:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,735 INFO L225 Difference]: With dead ends: 117 [2020-10-11 15:07:26,735 INFO L226 Difference]: Without dead ends: 55 [2020-10-11 15:07:26,736 INFO L673 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 [2020-10-11 15:07:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-11 15:07:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-11 15:07:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-11 15:07:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-11 15:07:26,738 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-11 15:07:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,738 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-11 15:07:26,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-11 15:07:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:07:26,739 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,740 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:07:26,740 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 2 times [2020-10-11 15:07:26,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895427747] [2020-10-11 15:07:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,796 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 15:07:26,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895427747] [2020-10-11 15:07:26,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:26,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140168256] [2020-10-11 15:07:26,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,798 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-11 15:07:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,819 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-11 15:07:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:07:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,820 INFO L225 Difference]: With dead ends: 54 [2020-10-11 15:07:26,820 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:07:26,820 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:07:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:07:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:07:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:07:26,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-11 15:07:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,821 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:07:26,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:07:26,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:07:26,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:07:26,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:07:26 BasicIcfg [2020-10-11 15:07:26,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:07:26,828 INFO L168 Benchmark]: Toolchain (without parser) took 4104.10 ms. Allocated memory was 252.2 MB in the beginning and 372.2 MB in the end (delta: 120.1 MB). Free memory was 207.3 MB in the beginning and 263.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 64.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,829 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:07:26,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.62 ms. Allocated memory was 252.2 MB in the beginning and 316.7 MB in the end (delta: 64.5 MB). Free memory was 207.3 MB in the beginning and 267.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.16 ms. Allocated memory is still 316.7 MB. Free memory was 267.6 MB in the beginning and 265.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,832 INFO L168 Benchmark]: Boogie Preprocessor took 25.73 ms. Allocated memory is still 316.7 MB. Free memory was 265.0 MB in the beginning and 262.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,833 INFO L168 Benchmark]: RCFGBuilder took 444.53 ms. Allocated memory is still 316.7 MB. Free memory was 262.5 MB in the beginning and 240.7 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,834 INFO L168 Benchmark]: TraceAbstraction took 2828.58 ms. Allocated memory was 316.7 MB in the beginning and 372.2 MB in the end (delta: 55.6 MB). Free memory was 240.7 MB in the beginning and 263.1 MB in the end (delta: -22.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 749.62 ms. Allocated memory was 252.2 MB in the beginning and 316.7 MB in the end (delta: 64.5 MB). Free memory was 207.3 MB in the beginning and 267.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.16 ms. Allocated memory is still 316.7 MB. Free memory was 267.6 MB in the beginning and 265.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.73 ms. Allocated memory is still 316.7 MB. Free memory was 265.0 MB in the beginning and 262.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 444.53 ms. Allocated memory is still 316.7 MB. Free memory was 262.5 MB in the beginning and 240.7 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2828.58 ms. Allocated memory was 316.7 MB in the beginning and 372.2 MB in the end (delta: 55.6 MB). Free memory was 240.7 MB in the beginning and 263.1 MB in the end (delta: -22.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 829 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 78 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2334 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 175 SDtfs, 173 SDslu, 270 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...