/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:52,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:52,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:52,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:52,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:52,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:52,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:52,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:52,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:52,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:52,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:52,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:52,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:52,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:52,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:52,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:52,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:52,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:52,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:52,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:52,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:52,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:52,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:52,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:52,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:49:52,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:52,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:52,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:52,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:52,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:52,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:52,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:52,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:52,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:52,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:52,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:52,556 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 [2020-10-05 22:49:52,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:52,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:52,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:52,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:52,603 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:52,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:52,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:52,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:52,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:52,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:52,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:52,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:52,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:52,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:52,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:52,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:52,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:52,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:52,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:52,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:52,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:52,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:52,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:52,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:52,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:52,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:52,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:52,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:52,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:52,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:52,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:52,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:52,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:52,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:52,969 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:52,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-05 22:49:53,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87128021c/54a75445d4924d568b152b2f41ae4e15/FLAG72a28254e [2020-10-05 22:49:53,557 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:53,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-05 22:49:53,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87128021c/54a75445d4924d568b152b2f41ae4e15/FLAG72a28254e [2020-10-05 22:49:53,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87128021c/54a75445d4924d568b152b2f41ae4e15 [2020-10-05 22:49:53,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:53,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:53,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:53,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:53,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:53,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:53" (1/1) ... [2020-10-05 22:49:53,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5588a755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:53, skipping insertion in model container [2020-10-05 22:49:53,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:53" (1/1) ... [2020-10-05 22:49:53,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:53,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:54,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:54,493 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:54,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:54,629 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:54,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54 WrapperNode [2020-10-05 22:49:54,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:54,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:54,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:54,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:54,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:54,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:54,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:54,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:54,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (1/1) ... [2020-10-05 22:49:54,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:54,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:54,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:54,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:54,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (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 22:49:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:49:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:49:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:54,793 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 22:49:55,164 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:55,165 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:55,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:55 BoogieIcfgContainer [2020-10-05 22:49:55,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:55,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:55,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:55,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:55,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:53" (1/3) ... [2020-10-05 22:49:55,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6031b2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:55, skipping insertion in model container [2020-10-05 22:49:55,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:54" (2/3) ... [2020-10-05 22:49:55,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6031b2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:55, skipping insertion in model container [2020-10-05 22:49:55,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:55" (3/3) ... [2020-10-05 22:49:55,184 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-10-05 22:49:55,195 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:55,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:55,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:55,203 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:55,245 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,245 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,246 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,246 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,248 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,250 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,250 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,252 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,253 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,257 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,257 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,257 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,257 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,260 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,267 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,268 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,268 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,269 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,291 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:55,316 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:49:55,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:49:55,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:49:55,341 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:49:55,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:49:55,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:49:55,343 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:49:55,343 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:49:55,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:49:55,368 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-05 22:49:55,369 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-05 22:49:55,417 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-05 22:49:55,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:55,423 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:49:55,426 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-05 22:49:55,457 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-05 22:49:55,458 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:55,461 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:49:55,466 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-05 22:49:55,467 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:49:57,262 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-10-05 22:49:57,262 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-10-05 22:49:57,266 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-05 22:49:57,349 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-05 22:49:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-05 22:49:57,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:57,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:57,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:57,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:57,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-05 22:49:57,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:57,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037524196] [2020-10-05 22:49:57,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:57,574 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 22:49:57,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037524196] [2020-10-05 22:49:57,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:57,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:57,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350490507] [2020-10-05 22:49:57,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:49:57,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:57,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:49:57,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:49:57,595 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-05 22:49:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:57,654 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-05 22:49:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:49:57,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-05 22:49:57,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:57,688 INFO L225 Difference]: With dead ends: 850 [2020-10-05 22:49:57,689 INFO L226 Difference]: Without dead ends: 706 [2020-10-05 22:49:57,690 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 22:49:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-05 22:49:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-05 22:49:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-05 22:49:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-05 22:49:57,833 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-05 22:49:57,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:57,835 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-05 22:49:57,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:49:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-05 22:49:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:49:57,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:57,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:57,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:49:57,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:57,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:57,846 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-05 22:49:57,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:57,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946037087] [2020-10-05 22:49:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,004 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 22:49:58,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946037087] [2020-10-05 22:49:58,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:58,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115816748] [2020-10-05 22:49:58,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:58,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:58,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:58,008 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-05 22:49:58,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,060 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-05 22:49:58,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:49:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,067 INFO L225 Difference]: With dead ends: 802 [2020-10-05 22:49:58,067 INFO L226 Difference]: Without dead ends: 658 [2020-10-05 22:49:58,068 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 22:49:58,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-05 22:49:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-05 22:49:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-05 22:49:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-05 22:49:58,138 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-05 22:49:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,138 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-05 22:49:58,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-05 22:49:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:49:58,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:49:58,142 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-05 22:49:58,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66586093] [2020-10-05 22:49:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,214 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 22:49:58,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66586093] [2020-10-05 22:49:58,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:58,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323155304] [2020-10-05 22:49:58,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:58,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:58,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:58,216 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-05 22:49:58,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,243 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-05 22:49:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:49:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,249 INFO L225 Difference]: With dead ends: 718 [2020-10-05 22:49:58,249 INFO L226 Difference]: Without dead ends: 598 [2020-10-05 22:49:58,249 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 22:49:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-05 22:49:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-05 22:49:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-05 22:49:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-05 22:49:58,272 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-05 22:49:58,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,272 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-05 22:49:58,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:58,272 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-05 22:49:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:49:58,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:49:58,275 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-05 22:49:58,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491652371] [2020-10-05 22:49:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,333 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 22:49:58,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491652371] [2020-10-05 22:49:58,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:58,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850650880] [2020-10-05 22:49:58,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:58,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:58,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:58,336 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 4 states. [2020-10-05 22:49:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,368 INFO L93 Difference]: Finished difference Result 668 states and 2153 transitions. [2020-10-05 22:49:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 22:49:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,373 INFO L225 Difference]: With dead ends: 668 [2020-10-05 22:49:58,373 INFO L226 Difference]: Without dead ends: 578 [2020-10-05 22:49:58,374 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 22:49:58,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-05 22:49:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-10-05 22:49:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-10-05 22:49:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-10-05 22:49:58,395 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-10-05 22:49:58,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,395 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-10-05 22:49:58,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-10-05 22:49:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:58,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:49:58,398 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,398 INFO L82 PathProgramCache]: Analyzing trace with hash 796896076, now seen corresponding path program 1 times [2020-10-05 22:49:58,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824887522] [2020-10-05 22:49:58,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,494 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 22:49:58,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824887522] [2020-10-05 22:49:58,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:58,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506551257] [2020-10-05 22:49:58,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:58,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:58,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:58,498 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 4 states. [2020-10-05 22:49:58,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,545 INFO L93 Difference]: Finished difference Result 814 states and 2558 transitions. [2020-10-05 22:49:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:49:58,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,551 INFO L225 Difference]: With dead ends: 814 [2020-10-05 22:49:58,551 INFO L226 Difference]: Without dead ends: 618 [2020-10-05 22:49:58,551 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 22:49:58,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-05 22:49:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 538. [2020-10-05 22:49:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-05 22:49:58,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1706 transitions. [2020-10-05 22:49:58,572 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1706 transitions. Word has length 14 [2020-10-05 22:49:58,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,573 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 1706 transitions. [2020-10-05 22:49:58,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:58,573 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1706 transitions. [2020-10-05 22:49:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:58,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:49:58,575 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1106275611, now seen corresponding path program 1 times [2020-10-05 22:49:58,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240247914] [2020-10-05 22:49:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,679 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 22:49:58,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240247914] [2020-10-05 22:49:58,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:58,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391746629] [2020-10-05 22:49:58,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:58,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:58,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:58,682 INFO L87 Difference]: Start difference. First operand 538 states and 1706 transitions. Second operand 5 states. [2020-10-05 22:49:58,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,747 INFO L93 Difference]: Finished difference Result 838 states and 2616 transitions. [2020-10-05 22:49:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 22:49:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,752 INFO L225 Difference]: With dead ends: 838 [2020-10-05 22:49:58,752 INFO L226 Difference]: Without dead ends: 490 [2020-10-05 22:49:58,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:49:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-05 22:49:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-10-05 22:49:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-05 22:49:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1516 transitions. [2020-10-05 22:49:58,770 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1516 transitions. Word has length 14 [2020-10-05 22:49:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,770 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 1516 transitions. [2020-10-05 22:49:58,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1516 transitions. [2020-10-05 22:49:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:58,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:49:58,772 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,773 INFO L82 PathProgramCache]: Analyzing trace with hash -635139139, now seen corresponding path program 2 times [2020-10-05 22:49:58,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748820429] [2020-10-05 22:49:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:58,847 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 22:49:58,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748820429] [2020-10-05 22:49:58,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:58,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:58,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123727816] [2020-10-05 22:49:58,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:58,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:58,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:58,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:58,850 INFO L87 Difference]: Start difference. First operand 490 states and 1516 transitions. Second operand 4 states. [2020-10-05 22:49:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:58,871 INFO L93 Difference]: Finished difference Result 514 states and 1556 transitions. [2020-10-05 22:49:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:58,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:49:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:58,875 INFO L225 Difference]: With dead ends: 514 [2020-10-05 22:49:58,875 INFO L226 Difference]: Without dead ends: 466 [2020-10-05 22:49:58,877 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 22:49:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-05 22:49:58,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-10-05 22:49:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-05 22:49:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1428 transitions. [2020-10-05 22:49:58,894 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1428 transitions. Word has length 14 [2020-10-05 22:49:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:58,894 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1428 transitions. [2020-10-05 22:49:58,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1428 transitions. [2020-10-05 22:49:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:58,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:58,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:58,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:49:58,897 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:58,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1523462552, now seen corresponding path program 1 times [2020-10-05 22:49:58,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:58,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324827595] [2020-10-05 22:49:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,014 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 22:49:59,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324827595] [2020-10-05 22:49:59,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:59,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306283659] [2020-10-05 22:49:59,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:59,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:59,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:59,017 INFO L87 Difference]: Start difference. First operand 466 states and 1428 transitions. Second operand 5 states. [2020-10-05 22:49:59,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,061 INFO L93 Difference]: Finished difference Result 678 states and 2040 transitions. [2020-10-05 22:49:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:59,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:49:59,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,069 INFO L225 Difference]: With dead ends: 678 [2020-10-05 22:49:59,069 INFO L226 Difference]: Without dead ends: 342 [2020-10-05 22:49:59,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:49:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-05 22:49:59,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2020-10-05 22:49:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-10-05 22:49:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 1003 transitions. [2020-10-05 22:49:59,108 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 1003 transitions. Word has length 15 [2020-10-05 22:49:59,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,108 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 1003 transitions. [2020-10-05 22:49:59,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:59,109 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 1003 transitions. [2020-10-05 22:49:59,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:59,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:49:59,110 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash 733648448, now seen corresponding path program 2 times [2020-10-05 22:49:59,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950230638] [2020-10-05 22:49:59,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,175 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 22:49:59,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950230638] [2020-10-05 22:49:59,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:59,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624426242] [2020-10-05 22:49:59,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:59,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:59,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:59,178 INFO L87 Difference]: Start difference. First operand 342 states and 1003 transitions. Second operand 4 states. [2020-10-05 22:49:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,209 INFO L93 Difference]: Finished difference Result 458 states and 1279 transitions. [2020-10-05 22:49:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:59,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:49:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,212 INFO L225 Difference]: With dead ends: 458 [2020-10-05 22:49:59,212 INFO L226 Difference]: Without dead ends: 302 [2020-10-05 22:49:59,213 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 22:49:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-05 22:49:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 254. [2020-10-05 22:49:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-05 22:49:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 691 transitions. [2020-10-05 22:49:59,222 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 691 transitions. Word has length 15 [2020-10-05 22:49:59,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,223 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 691 transitions. [2020-10-05 22:49:59,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 691 transitions. [2020-10-05 22:49:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:59,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:49:59,225 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,225 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 1 times [2020-10-05 22:49:59,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817339558] [2020-10-05 22:49:59,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,290 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 22:49:59,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817339558] [2020-10-05 22:49:59,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:59,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650731710] [2020-10-05 22:49:59,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:59,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:59,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:59,293 INFO L87 Difference]: Start difference. First operand 254 states and 691 transitions. Second operand 4 states. [2020-10-05 22:49:59,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,332 INFO L93 Difference]: Finished difference Result 302 states and 756 transitions. [2020-10-05 22:49:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:59,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:49:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,334 INFO L225 Difference]: With dead ends: 302 [2020-10-05 22:49:59,334 INFO L226 Difference]: Without dead ends: 229 [2020-10-05 22:49:59,335 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 22:49:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-05 22:49:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-05 22:49:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-05 22:49:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 581 transitions. [2020-10-05 22:49:59,342 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 581 transitions. Word has length 15 [2020-10-05 22:49:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,344 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 581 transitions. [2020-10-05 22:49:59,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 581 transitions. [2020-10-05 22:49:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:49:59,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:49:59,345 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-05 22:49:59,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367396120] [2020-10-05 22:49:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,433 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 22:49:59,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367396120] [2020-10-05 22:49:59,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:59,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305912663] [2020-10-05 22:49:59,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:59,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:59,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:59,436 INFO L87 Difference]: Start difference. First operand 229 states and 581 transitions. Second operand 5 states. [2020-10-05 22:49:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,492 INFO L93 Difference]: Finished difference Result 227 states and 514 transitions. [2020-10-05 22:49:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:59,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-05 22:49:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,494 INFO L225 Difference]: With dead ends: 227 [2020-10-05 22:49:59,494 INFO L226 Difference]: Without dead ends: 171 [2020-10-05 22:49:59,495 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 22:49:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-05 22:49:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-10-05 22:49:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-05 22:49:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 378 transitions. [2020-10-05 22:49:59,501 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 378 transitions. Word has length 16 [2020-10-05 22:49:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,502 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 378 transitions. [2020-10-05 22:49:59,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 378 transitions. [2020-10-05 22:49:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:59,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:49:59,503 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-05 22:49:59,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587922877] [2020-10-05 22:49:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,580 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 22:49:59,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587922877] [2020-10-05 22:49:59,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 22:49:59,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790053690] [2020-10-05 22:49:59,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:49:59,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:49:59,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:59,583 INFO L87 Difference]: Start difference. First operand 171 states and 378 transitions. Second operand 6 states. [2020-10-05 22:49:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,638 INFO L93 Difference]: Finished difference Result 147 states and 307 transitions. [2020-10-05 22:49:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:49:59,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-05 22:49:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,641 INFO L225 Difference]: With dead ends: 147 [2020-10-05 22:49:59,641 INFO L226 Difference]: Without dead ends: 107 [2020-10-05 22:49:59,641 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 22:49:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-05 22:49:59,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-05 22:49:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-05 22:49:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 217 transitions. [2020-10-05 22:49:59,645 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 217 transitions. Word has length 17 [2020-10-05 22:49:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,645 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 217 transitions. [2020-10-05 22:49:59,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:49:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 217 transitions. [2020-10-05 22:49:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:49:59,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-05 22:49:59,647 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,647 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-05 22:49:59,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417573109] [2020-10-05 22:49:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,734 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 22:49:59,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417573109] [2020-10-05 22:49:59,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:59,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365196227] [2020-10-05 22:49:59,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:59,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:59,737 INFO L87 Difference]: Start difference. First operand 107 states and 217 transitions. Second operand 5 states. [2020-10-05 22:49:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,773 INFO L93 Difference]: Finished difference Result 121 states and 234 transitions. [2020-10-05 22:49:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:59,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-05 22:49:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,775 INFO L225 Difference]: With dead ends: 121 [2020-10-05 22:49:59,775 INFO L226 Difference]: Without dead ends: 105 [2020-10-05 22:49:59,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:49:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-05 22:49:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2020-10-05 22:49:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-05 22:49:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 205 transitions. [2020-10-05 22:49:59,781 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 205 transitions. Word has length 19 [2020-10-05 22:49:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,781 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 205 transitions. [2020-10-05 22:49:59,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 205 transitions. [2020-10-05 22:49:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:49:59,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:59,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:59,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-05 22:49:59,782 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:59,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-05 22:49:59,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:59,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064196972] [2020-10-05 22:49:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:59,865 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 22:49:59,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064196972] [2020-10-05 22:49:59,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:59,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:49:59,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121361321] [2020-10-05 22:49:59,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:49:59,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:59,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:49:59,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:49:59,868 INFO L87 Difference]: Start difference. First operand 103 states and 205 transitions. Second operand 7 states. [2020-10-05 22:49:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:59,912 INFO L93 Difference]: Finished difference Result 93 states and 190 transitions. [2020-10-05 22:49:59,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:49:59,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-05 22:49:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:59,912 INFO L225 Difference]: With dead ends: 93 [2020-10-05 22:49:59,913 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:49:59,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:49:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:49:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:49:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:49:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:49:59,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-05 22:49:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:59,914 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:49:59,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:49:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:49:59,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:49:59,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-05 22:49:59,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:49:59 BasicIcfg [2020-10-05 22:49:59,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:49:59,924 INFO L168 Benchmark]: Toolchain (without parser) took 6003.79 ms. Allocated memory was 138.9 MB in the beginning and 293.6 MB in the end (delta: 154.7 MB). Free memory was 100.2 MB in the beginning and 148.2 MB in the end (delta: -48.0 MB). Peak memory consumption was 106.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.76 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 158.6 MB in the end (delta: -58.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.87 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 155.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,936 INFO L168 Benchmark]: Boogie Preprocessor took 32.74 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,937 INFO L168 Benchmark]: RCFGBuilder took 454.30 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 130.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,937 INFO L168 Benchmark]: TraceAbstraction took 4748.52 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 129.9 MB in the beginning and 148.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:59,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.76 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 158.6 MB in the end (delta: -58.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.87 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 155.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.74 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.30 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 130.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4748.52 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 129.9 MB in the beginning and 148.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 953 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 32 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 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 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 371 SDtfs, 335 SDslu, 597 SDs, 0 SdLazy, 227 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 130 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 7946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...