/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:38:51,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:38:51,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:38:51,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:38:51,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:38:51,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:38:51,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:38:51,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:38:51,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:38:51,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:38:51,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:38:51,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:38:51,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:38:51,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:38:51,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:38:51,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:38:51,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:38:51,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:38:51,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:38:51,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:38:51,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:38:51,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:38:51,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:38:51,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:38:51,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:38:51,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:38:51,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:38:51,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:38:51,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:38:51,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:38:51,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:38:51,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:38:51,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:38:51,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:38:51,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:38:51,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:38:51,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:38:51,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:38:51,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:38:51,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:38:51,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:38:51,799 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:38:51,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:38:51,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:38:51,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:38:51,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:38:51,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:38:51,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:38:51,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:38:51,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:38:51,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:38:51,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:38:51,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:38:51,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:38:51,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:38:51,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:38:51,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:38:51,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:38:51,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:38:51,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:38:51,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:38:51,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:38:51,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:38:51,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:38:51,804 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:38:51,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:38:52,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:38:52,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:38:52,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:38:52,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:38:52,095 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:38:52,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-05 23:38:52,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414a347c1/76b21d842770478c9bb59ccb128bc393/FLAG89102d8fd [2020-10-05 23:38:52,685 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:38:52,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-05 23:38:52,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414a347c1/76b21d842770478c9bb59ccb128bc393/FLAG89102d8fd [2020-10-05 23:38:53,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414a347c1/76b21d842770478c9bb59ccb128bc393 [2020-10-05 23:38:53,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:38:53,016 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:38:53,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:53,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:38:53,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:38:53,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dba8100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53, skipping insertion in model container [2020-10-05 23:38:53,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:38:53,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:38:53,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:53,509 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:38:53,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:38:53,778 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:38:53,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53 WrapperNode [2020-10-05 23:38:53,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:38:53,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:53,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:38:53,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:38:53,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:38:53,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:38:53,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:38:53,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:38:53,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (1/1) ... [2020-10-05 23:38:53,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:38:53,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:38:53,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:38:53,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:38:53,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (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 [2020-10-05 23:38:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:38:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:38:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:38:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:38:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:38:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:38:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:38:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:38:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:38:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:38:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:38:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:38:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:38:53,936 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:38:54,311 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:38:54,312 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:38:54,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:54 BoogieIcfgContainer [2020-10-05 23:38:54,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:38:54,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:38:54,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:38:54,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:38:54,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:38:53" (1/3) ... [2020-10-05 23:38:54,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66198a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:54, skipping insertion in model container [2020-10-05 23:38:54,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:38:53" (2/3) ... [2020-10-05 23:38:54,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66198a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:38:54, skipping insertion in model container [2020-10-05 23:38:54,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:38:54" (3/3) ... [2020-10-05 23:38:54,323 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-10-05 23:38:54,333 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:38:54,334 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:38:54,341 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:38:54,342 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:38:54,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,389 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,390 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:38:54,414 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:38:54,436 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:38:54,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:38:54,436 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:38:54,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:38:54,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:38:54,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:38:54,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:38:54,437 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:38:54,453 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 23:38:54,456 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:38:54,502 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:38:54,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:54,507 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. [2020-10-05 23:38:54,510 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:38:54,532 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:38:54,532 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:38:54,533 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. [2020-10-05 23:38:54,535 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:38:54,536 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:38:55,712 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2250 [2020-10-05 23:38:55,712 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-10-05 23:38:55,716 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-05 23:38:55,759 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-05 23:38:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-05 23:38:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:38:55,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:55,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:55,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:55,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-05 23:38:55,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:55,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445766047] [2020-10-05 23:38:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445766047] [2020-10-05 23:38:56,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:56,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028115345] [2020-10-05 23:38:56,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 23:38:56,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 23:38:56,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:38:56,027 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-05 23:38:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:56,075 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-05 23:38:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 23:38:56,079 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 23:38:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:56,107 INFO L225 Difference]: With dead ends: 362 [2020-10-05 23:38:56,108 INFO L226 Difference]: Without dead ends: 298 [2020-10-05 23:38:56,110 INFO L675 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 [2020-10-05 23:38:56,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-05 23:38:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-05 23:38:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-05 23:38:56,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-05 23:38:56,189 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-05 23:38:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:56,191 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-05 23:38:56,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 23:38:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-05 23:38:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:38:56,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:56,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:56,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:38:56,196 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:56,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:56,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-05 23:38:56,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:56,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626618821] [2020-10-05 23:38:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626618821] [2020-10-05 23:38:56,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:56,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932054005] [2020-10-05 23:38:56,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:56,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:56,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:56,358 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-05 23:38:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:56,419 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-10-05 23:38:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:56,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:38:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:56,426 INFO L225 Difference]: With dead ends: 346 [2020-10-05 23:38:56,428 INFO L226 Difference]: Without dead ends: 282 [2020-10-05 23:38:56,429 INFO L675 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 [2020-10-05 23:38:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-05 23:38:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-05 23:38:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-05 23:38:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-10-05 23:38:56,468 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-10-05 23:38:56,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:56,469 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-10-05 23:38:56,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-10-05 23:38:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:38:56,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:56,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:56,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:38:56,471 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:56,473 INFO L82 PathProgramCache]: Analyzing trace with hash -397112394, now seen corresponding path program 1 times [2020-10-05 23:38:56,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:56,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174527023] [2020-10-05 23:38:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174527023] [2020-10-05 23:38:56,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:56,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778993932] [2020-10-05 23:38:56,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:56,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:56,599 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-10-05 23:38:56,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:56,621 INFO L93 Difference]: Finished difference Result 310 states and 844 transitions. [2020-10-05 23:38:56,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:56,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-05 23:38:56,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:56,627 INFO L225 Difference]: With dead ends: 310 [2020-10-05 23:38:56,627 INFO L226 Difference]: Without dead ends: 254 [2020-10-05 23:38:56,628 INFO L675 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 [2020-10-05 23:38:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-05 23:38:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-05 23:38:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-05 23:38:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 708 transitions. [2020-10-05 23:38:56,657 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 708 transitions. Word has length 10 [2020-10-05 23:38:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:56,658 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 708 transitions. [2020-10-05 23:38:56,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:56,661 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 708 transitions. [2020-10-05 23:38:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:38:56,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:56,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:56,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:38:56,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:56,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2136948955, now seen corresponding path program 1 times [2020-10-05 23:38:56,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:56,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212208700] [2020-10-05 23:38:56,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212208700] [2020-10-05 23:38:56,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:56,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191529566] [2020-10-05 23:38:56,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:38:56,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:38:56,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:56,780 INFO L87 Difference]: Start difference. First operand 254 states and 708 transitions. Second operand 5 states. [2020-10-05 23:38:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:56,827 INFO L93 Difference]: Finished difference Result 320 states and 860 transitions. [2020-10-05 23:38:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:38:56,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-05 23:38:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:56,830 INFO L225 Difference]: With dead ends: 320 [2020-10-05 23:38:56,830 INFO L226 Difference]: Without dead ends: 158 [2020-10-05 23:38:56,831 INFO L675 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 [2020-10-05 23:38:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-05 23:38:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-05 23:38:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-05 23:38:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-05 23:38:56,838 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 11 [2020-10-05 23:38:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:56,839 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-05 23:38:56,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:38:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-05 23:38:56,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:38:56,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:56,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:56,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:38:56,841 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:56,842 INFO L82 PathProgramCache]: Analyzing trace with hash 625195173, now seen corresponding path program 1 times [2020-10-05 23:38:56,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:56,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389647446] [2020-10-05 23:38:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389647446] [2020-10-05 23:38:56,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:38:56,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017809506] [2020-10-05 23:38:56,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:56,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:56,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:56,906 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 4 states. [2020-10-05 23:38:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:56,926 INFO L93 Difference]: Finished difference Result 170 states and 410 transitions. [2020-10-05 23:38:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:56,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:38:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:56,928 INFO L225 Difference]: With dead ends: 170 [2020-10-05 23:38:56,928 INFO L226 Difference]: Without dead ends: 146 [2020-10-05 23:38:56,928 INFO L675 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 [2020-10-05 23:38:56,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-05 23:38:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-05 23:38:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:38:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-05 23:38:56,934 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-10-05 23:38:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:56,935 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-05 23:38:56,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-05 23:38:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:38:56,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:56,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:56,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:38:56,937 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1939864517, now seen corresponding path program 1 times [2020-10-05 23:38:56,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:56,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176608760] [2020-10-05 23:38:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:56,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176608760] [2020-10-05 23:38:56,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:56,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:56,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60342067] [2020-10-05 23:38:56,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:38:56,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:56,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:38:56,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:56,996 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-05 23:38:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:57,035 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-10-05 23:38:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:38:57,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:38:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:57,037 INFO L225 Difference]: With dead ends: 176 [2020-10-05 23:38:57,037 INFO L226 Difference]: Without dead ends: 98 [2020-10-05 23:38:57,038 INFO L675 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 [2020-10-05 23:38:57,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-05 23:38:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-05 23:38:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-05 23:38:57,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-10-05 23:38:57,042 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-10-05 23:38:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:57,042 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-10-05 23:38:57,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:38:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-10-05 23:38:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:38:57,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:57,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:57,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:38:57,043 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:57,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:57,044 INFO L82 PathProgramCache]: Analyzing trace with hash -484565939, now seen corresponding path program 1 times [2020-10-05 23:38:57,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:57,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882066101] [2020-10-05 23:38:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:57,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882066101] [2020-10-05 23:38:57,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:57,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:57,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765844556] [2020-10-05 23:38:57,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:57,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:57,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:57,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:57,088 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 4 states. [2020-10-05 23:38:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:57,117 INFO L93 Difference]: Finished difference Result 109 states and 223 transitions. [2020-10-05 23:38:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:38:57,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 23:38:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:57,118 INFO L225 Difference]: With dead ends: 109 [2020-10-05 23:38:57,119 INFO L226 Difference]: Without dead ends: 87 [2020-10-05 23:38:57,119 INFO L675 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 [2020-10-05 23:38:57,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-05 23:38:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-05 23:38:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-05 23:38:57,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 180 transitions. [2020-10-05 23:38:57,123 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 180 transitions. Word has length 14 [2020-10-05 23:38:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:57,123 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 180 transitions. [2020-10-05 23:38:57,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:57,123 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 180 transitions. [2020-10-05 23:38:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:38:57,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:57,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:57,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:38:57,124 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1643108637, now seen corresponding path program 1 times [2020-10-05 23:38:57,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:57,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877764438] [2020-10-05 23:38:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:57,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877764438] [2020-10-05 23:38:57,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:57,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:38:57,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442738625] [2020-10-05 23:38:57,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:38:57,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:57,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:38:57,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:38:57,172 INFO L87 Difference]: Start difference. First operand 87 states and 180 transitions. Second operand 5 states. [2020-10-05 23:38:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:57,210 INFO L93 Difference]: Finished difference Result 83 states and 155 transitions. [2020-10-05 23:38:57,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:38:57,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 23:38:57,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:57,211 INFO L225 Difference]: With dead ends: 83 [2020-10-05 23:38:57,212 INFO L226 Difference]: Without dead ends: 68 [2020-10-05 23:38:57,212 INFO L675 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 [2020-10-05 23:38:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-05 23:38:57,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-05 23:38:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-05 23:38:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 125 transitions. [2020-10-05 23:38:57,215 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 125 transitions. Word has length 15 [2020-10-05 23:38:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:57,216 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 125 transitions. [2020-10-05 23:38:57,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:38:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 125 transitions. [2020-10-05 23:38:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 23:38:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:57,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:57,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:38:57,217 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:57,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1105925332, now seen corresponding path program 1 times [2020-10-05 23:38:57,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:57,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392347235] [2020-10-05 23:38:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:57,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392347235] [2020-10-05 23:38:57,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:57,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 23:38:57,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020714880] [2020-10-05 23:38:57,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:38:57,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:57,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:38:57,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:38:57,294 INFO L87 Difference]: Start difference. First operand 68 states and 125 transitions. Second operand 6 states. [2020-10-05 23:38:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:57,344 INFO L93 Difference]: Finished difference Result 61 states and 109 transitions. [2020-10-05 23:38:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:38:57,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-05 23:38:57,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:57,346 INFO L225 Difference]: With dead ends: 61 [2020-10-05 23:38:57,346 INFO L226 Difference]: Without dead ends: 55 [2020-10-05 23:38:57,346 INFO L675 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 [2020-10-05 23:38:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-05 23:38:57,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-05 23:38:57,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-05 23:38:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-05 23:38:57,349 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 16 [2020-10-05 23:38:57,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:57,349 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-05 23:38:57,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:38:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-05 23:38:57,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 23:38:57,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:38:57,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:38:57,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:38:57,350 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:38:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:38:57,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 1 times [2020-10-05 23:38:57,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:38:57,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197825848] [2020-10-05 23:38:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:38:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:38:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:38:57,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197825848] [2020-10-05 23:38:57,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:38:57,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:38:57,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112415604] [2020-10-05 23:38:57,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:38:57,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:38:57,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:38:57,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:38:57,395 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-05 23:38:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:38:57,408 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-05 23:38:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:38:57,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 23:38:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:38:57,409 INFO L225 Difference]: With dead ends: 54 [2020-10-05 23:38:57,409 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:38:57,409 INFO L675 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 [2020-10-05 23:38:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:38:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:38:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:38:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:38:57,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-05 23:38:57,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:38:57,411 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:38:57,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:38:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:38:57,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:38:57,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 23:38:57,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:38:57 BasicIcfg [2020-10-05 23:38:57,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:38:57,419 INFO L168 Benchmark]: Toolchain (without parser) took 4402.07 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 101.5 MB in the beginning and 192.6 MB in the end (delta: -91.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,419 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.37 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 161.5 MB in the end (delta: -60.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 202.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,422 INFO L168 Benchmark]: Boogie Preprocessor took 28.63 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,423 INFO L168 Benchmark]: RCFGBuilder took 455.49 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 135.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:38:57,423 INFO L168 Benchmark]: TraceAbstraction took 3100.11 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 192.6 MB in the end (delta: -57.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:38:57,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.37 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 161.5 MB in the end (delta: -60.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 202.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.63 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.49 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 135.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3100.11 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 192.6 MB in the end (delta: -57.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 78 ProgramPointsBefore, 32 ProgramPointsAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 637 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2250 CheckedPairsTotal, 55 TotalNumberOfCompositions - 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: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 211 SDtfs, 194 SDslu, 305 SDs, 0 SdLazy, 123 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 3791 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...