/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:15:22,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:15:22,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:15:22,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:15:22,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:15:22,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:15:22,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:15:22,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:15:22,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:15:22,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:15:22,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:15:22,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:15:22,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:15:22,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:15:22,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:15:22,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:15:22,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:15:22,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:15:22,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:15:22,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:15:22,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:15:22,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:15:22,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:15:22,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:15:22,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:15:22,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:15:22,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:15:22,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:15:22,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:15:22,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:15:22,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:15:22,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:15:22,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:15:22,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:15:22,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:15:22,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:15:22,375 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 [2020-09-17 00:15:22,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:15:22,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:15:22,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:15:22,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:15:22,424 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:15:22,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:15:22,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:15:22,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:15:22,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:15:22,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:15:22,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:15:22,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:15:22,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:15:22,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:15:22,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:15:22,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:15:22,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:15:22,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:15:22,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:15:22,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:15:22,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:15:22,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:15:22,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:15:22,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:15:22,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:15:22,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:15:22,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:15:22,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:15:22,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:15:22,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:15:22,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:15:22,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:15:22,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:15:22,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:15:22,903 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:15:22,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-17 00:15:22,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780df022c/642b026451da4ef8b848727b1756aa4c/FLAG64f1d5714 [2020-09-17 00:15:23,609 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:15:23,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-17 00:15:23,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780df022c/642b026451da4ef8b848727b1756aa4c/FLAG64f1d5714 [2020-09-17 00:15:23,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780df022c/642b026451da4ef8b848727b1756aa4c [2020-09-17 00:15:23,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:15:23,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:15:23,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:15:23,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:15:23,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:15:23,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:15:23" (1/1) ... [2020-09-17 00:15:23,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13275c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:23, skipping insertion in model container [2020-09-17 00:15:23,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:15:23" (1/1) ... [2020-09-17 00:15:23,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:15:23,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:15:24,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:15:24,549 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:15:24,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:15:24,695 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:15:24,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24 WrapperNode [2020-09-17 00:15:24,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:15:24,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:15:24,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:15:24,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:15:24,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:15:24,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:15:24,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:15:24,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:15:24,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (1/1) ... [2020-09-17 00:15:24,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:15:24,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:15:24,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:15:24,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:15:24,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (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 [2020-09-17 00:15:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:15:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:15:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:15:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:15:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:15:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:15:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:15:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:15:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:15:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:15:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-17 00:15:24,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-17 00:15:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:15:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:15:24,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:15:24,891 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:15:25,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:15:25,340 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:15:25,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:15:25 BoogieIcfgContainer [2020-09-17 00:15:25,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:15:25,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:15:25,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:15:25,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:15:25,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:15:23" (1/3) ... [2020-09-17 00:15:25,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdcbe7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:15:25, skipping insertion in model container [2020-09-17 00:15:25,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:15:24" (2/3) ... [2020-09-17 00:15:25,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdcbe7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:15:25, skipping insertion in model container [2020-09-17 00:15:25,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:15:25" (3/3) ... [2020-09-17 00:15:25,358 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-09-17 00:15:25,370 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:15:25,370 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:15:25,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:15:25,381 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:15:25,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,418 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,418 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,419 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,420 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,420 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,421 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,426 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,426 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,427 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,427 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,438 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,438 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,442 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,446 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,447 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:15:25,473 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 00:15:25,502 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:15:25,502 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:15:25,503 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:15:25,503 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:15:25,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:15:25,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:15:25,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:15:25,504 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:15:25,525 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-17 00:15:25,528 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-17 00:15:25,583 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-17 00:15:25,583 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:15:25,590 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 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. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:15:25,593 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-17 00:15:25,618 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-17 00:15:25,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:15:25,619 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 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. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:15:25,622 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-17 00:15:25,623 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:15:27,546 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-17 00:15:27,825 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-17 00:15:27,825 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-17 00:15:27,830 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-17 00:15:27,874 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-17 00:15:27,877 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-17 00:15:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:15:27,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:27,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:27,891 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:27,898 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-17 00:15:27,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:27,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016708710] [2020-09-17 00:15:27,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:28,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016708710] [2020-09-17 00:15:28,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:28,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:15:28,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046194384] [2020-09-17 00:15:28,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:15:28,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:28,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:15:28,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,261 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-17 00:15:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:28,371 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-17 00:15:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:15:28,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 00:15:28,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:28,421 INFO L225 Difference]: With dead ends: 670 [2020-09-17 00:15:28,422 INFO L226 Difference]: Without dead ends: 526 [2020-09-17 00:15:28,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-17 00:15:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-17 00:15:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-17 00:15:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-17 00:15:28,530 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-17 00:15:28,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:28,532 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-17 00:15:28,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:15:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-17 00:15:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:15:28,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:28,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:28,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:15:28,536 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:28,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-09-17 00:15:28,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:28,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345255411] [2020-09-17 00:15:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:28,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345255411] [2020-09-17 00:15:28,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:28,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:15:28,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358068647] [2020-09-17 00:15:28,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:15:28,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:28,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:15:28,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:15:28,655 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-17 00:15:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:28,689 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-09-17 00:15:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:15:28,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-17 00:15:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:28,694 INFO L225 Difference]: With dead ends: 682 [2020-09-17 00:15:28,694 INFO L226 Difference]: Without dead ends: 394 [2020-09-17 00:15:28,695 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 [2020-09-17 00:15:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-17 00:15:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-17 00:15:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-17 00:15:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-09-17 00:15:28,720 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-09-17 00:15:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:28,721 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-09-17 00:15:28,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:15:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-09-17 00:15:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 00:15:28,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:28,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:28,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:15:28,724 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-09-17 00:15:28,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:28,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022273332] [2020-09-17 00:15:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:28,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022273332] [2020-09-17 00:15:28,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:28,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:15:28,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203168411] [2020-09-17 00:15:28,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:15:28,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:28,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:15:28,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,815 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-09-17 00:15:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:28,831 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-09-17 00:15:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:15:28,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-17 00:15:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:28,835 INFO L225 Difference]: With dead ends: 386 [2020-09-17 00:15:28,835 INFO L226 Difference]: Without dead ends: 386 [2020-09-17 00:15:28,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-17 00:15:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-09-17 00:15:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-17 00:15:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-09-17 00:15:28,853 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-09-17 00:15:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:28,853 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-09-17 00:15:28,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:15:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-09-17 00:15:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:15:28,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:28,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:28,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:15:28,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:28,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-09-17 00:15:28,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:28,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057084908] [2020-09-17 00:15:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:28,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057084908] [2020-09-17 00:15:28,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:28,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:15:28,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431433763] [2020-09-17 00:15:28,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:15:28,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:28,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:15:28,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,927 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-09-17 00:15:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:28,947 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-09-17 00:15:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:15:28,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-17 00:15:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:28,951 INFO L225 Difference]: With dead ends: 466 [2020-09-17 00:15:28,952 INFO L226 Difference]: Without dead ends: 402 [2020-09-17 00:15:28,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-17 00:15:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-09-17 00:15:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-17 00:15:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-09-17 00:15:28,967 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-09-17 00:15:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:28,968 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-09-17 00:15:28,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:15:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-09-17 00:15:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:15:28,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:28,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:28,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:15:28,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:28,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:28,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-09-17 00:15:28,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:28,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798282092] [2020-09-17 00:15:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798282092] [2020-09-17 00:15:29,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:15:29,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747151729] [2020-09-17 00:15:29,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:15:29,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:15:29,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:29,091 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-09-17 00:15:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,100 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-09-17 00:15:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:15:29,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-17 00:15:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,105 INFO L225 Difference]: With dead ends: 358 [2020-09-17 00:15:29,105 INFO L226 Difference]: Without dead ends: 358 [2020-09-17 00:15:29,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:15:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-17 00:15:29,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-09-17 00:15:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-17 00:15:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-09-17 00:15:29,120 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-09-17 00:15:29,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,120 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-09-17 00:15:29,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:15:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-09-17 00:15:29,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:15:29,122 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:15:29,122 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-09-17 00:15:29,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038152763] [2020-09-17 00:15:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038152763] [2020-09-17 00:15:29,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:15:29,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139635626] [2020-09-17 00:15:29,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:15:29,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:15:29,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:15:29,191 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-09-17 00:15:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,214 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-09-17 00:15:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:15:29,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-17 00:15:29,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,217 INFO L225 Difference]: With dead ends: 514 [2020-09-17 00:15:29,217 INFO L226 Difference]: Without dead ends: 274 [2020-09-17 00:15:29,218 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 [2020-09-17 00:15:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-17 00:15:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-17 00:15:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-17 00:15:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-09-17 00:15:29,227 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-09-17 00:15:29,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,227 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-09-17 00:15:29,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:15:29,228 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-09-17 00:15:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:15:29,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:15:29,229 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-09-17 00:15:29,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978634968] [2020-09-17 00:15:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978634968] [2020-09-17 00:15:29,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:15:29,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534011926] [2020-09-17 00:15:29,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:15:29,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:15:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:15:29,356 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-09-17 00:15:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,396 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-09-17 00:15:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:15:29,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-17 00:15:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,399 INFO L225 Difference]: With dead ends: 345 [2020-09-17 00:15:29,399 INFO L226 Difference]: Without dead ends: 252 [2020-09-17 00:15:29,400 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 [2020-09-17 00:15:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-17 00:15:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-09-17 00:15:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-17 00:15:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-09-17 00:15:29,409 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-09-17 00:15:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,409 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-09-17 00:15:29,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:15:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-09-17 00:15:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:15:29,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:15:29,411 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-09-17 00:15:29,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925720839] [2020-09-17 00:15:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925720839] [2020-09-17 00:15:29,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:15:29,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485675710] [2020-09-17 00:15:29,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:15:29,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:15:29,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:15:29,510 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-09-17 00:15:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,574 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-09-17 00:15:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:15:29,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 00:15:29,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,576 INFO L225 Difference]: With dead ends: 278 [2020-09-17 00:15:29,577 INFO L226 Difference]: Without dead ends: 203 [2020-09-17 00:15:29,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:15:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-17 00:15:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-09-17 00:15:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-17 00:15:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-09-17 00:15:29,584 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-09-17 00:15:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,585 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-09-17 00:15:29,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:15:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-09-17 00:15:29,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:15:29,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 00:15:29,586 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,586 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-17 00:15:29,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771364800] [2020-09-17 00:15:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771364800] [2020-09-17 00:15:29,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:15:29,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536464383] [2020-09-17 00:15:29,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:15:29,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:15:29,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:15:29,681 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-09-17 00:15:29,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,750 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-09-17 00:15:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:15:29,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-17 00:15:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,753 INFO L225 Difference]: With dead ends: 200 [2020-09-17 00:15:29,753 INFO L226 Difference]: Without dead ends: 162 [2020-09-17 00:15:29,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:15:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-17 00:15:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-17 00:15:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-17 00:15:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-09-17 00:15:29,761 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-09-17 00:15:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,761 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-09-17 00:15:29,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:15:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-09-17 00:15:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 00:15:29,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 00:15:29,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-09-17 00:15:29,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608022667] [2020-09-17 00:15:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608022667] [2020-09-17 00:15:29,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:15:29,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524426442] [2020-09-17 00:15:29,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:15:29,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:15:29,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:15:29,823 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-09-17 00:15:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:29,847 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-09-17 00:15:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:15:29,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-17 00:15:29,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:29,850 INFO L225 Difference]: With dead ends: 194 [2020-09-17 00:15:29,850 INFO L226 Difference]: Without dead ends: 127 [2020-09-17 00:15:29,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:15:29,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-17 00:15:29,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-09-17 00:15:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-17 00:15:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-17 00:15:29,856 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-09-17 00:15:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:29,857 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-17 00:15:29,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:15:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-17 00:15:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 00:15:29,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:29,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:29,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 00:15:29,858 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:29,859 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-09-17 00:15:29,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:29,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854865547] [2020-09-17 00:15:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:29,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854865547] [2020-09-17 00:15:29,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:29,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 00:15:29,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965536343] [2020-09-17 00:15:29,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 00:15:29,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:29,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 00:15:29,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:15:29,963 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-17 00:15:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:30,043 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-17 00:15:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 00:15:30,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-17 00:15:30,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:30,045 INFO L225 Difference]: With dead ends: 120 [2020-09-17 00:15:30,045 INFO L226 Difference]: Without dead ends: 71 [2020-09-17 00:15:30,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-17 00:15:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-17 00:15:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-17 00:15:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-17 00:15:30,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-17 00:15:30,049 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-17 00:15:30,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:30,050 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-17 00:15:30,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 00:15:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-17 00:15:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-17 00:15:30,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:15:30,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:15:30,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 00:15:30,051 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:15:30,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:15:30,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-17 00:15:30,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:15:30,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288169865] [2020-09-17 00:15:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:15:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:15:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:15:30,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288169865] [2020-09-17 00:15:30,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:15:30,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:15:30,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249931917] [2020-09-17 00:15:30,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:15:30,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:15:30,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:15:30,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:15:30,141 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-17 00:15:30,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:15:30,152 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-17 00:15:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:15:30,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-17 00:15:30,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:15:30,153 INFO L225 Difference]: With dead ends: 70 [2020-09-17 00:15:30,153 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:15:30,154 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 [2020-09-17 00:15:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:15:30,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:15:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:15:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:15:30,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-17 00:15:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:15:30,155 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:15:30,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:15:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:15:30,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:15:30,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-17 00:15:30,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:15:30 BasicIcfg [2020-09-17 00:15:30,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:15:30,163 INFO L168 Benchmark]: Toolchain (without parser) took 6261.53 ms. Allocated memory was 141.0 MB in the beginning and 283.1 MB in the end (delta: 142.1 MB). Free memory was 101.9 MB in the beginning and 129.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 114.4 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,164 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 00:15:30,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.81 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 161.6 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.48 ms. Allocated memory is still 205.0 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,166 INFO L168 Benchmark]: Boogie Preprocessor took 44.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,167 INFO L168 Benchmark]: RCFGBuilder took 545.24 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 134.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,168 INFO L168 Benchmark]: TraceAbstraction took 4812.57 ms. Allocated memory was 205.0 MB in the beginning and 283.1 MB in the end (delta: 78.1 MB). Free memory was 133.6 MB in the beginning and 129.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-09-17 00:15:30,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.81 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 161.6 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.48 ms. Allocated memory is still 205.0 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 545.24 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 134.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4812.57 ms. Allocated memory was 205.0 MB in the beginning and 283.1 MB in the end (delta: 78.1 MB). Free memory was 133.6 MB in the beginning and 129.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 951 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 25 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 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, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...