/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:15:37,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:15:37,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:15:37,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:15:37,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:15:37,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:15:37,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:15:37,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:15:37,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:15:37,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:15:37,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:15:37,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:15:37,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:15:37,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:15:37,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:15:37,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:15:37,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:15:37,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:15:37,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:15:37,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:15:37,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:15:37,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:15:37,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:15:37,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:15:37,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:15:37,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:15:37,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:15:37,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:15:37,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:15:37,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:15:37,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:15:37,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:15:37,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:15:37,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:15:37,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:15:37,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:15:37,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:15:37,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:15:37,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:15:37,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:15:37,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:15:37,681 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:15:37,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:15:37,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:15:37,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:15:37,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:15:37,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:15:37,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:15:37,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:15:37,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:15:37,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:15:37,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:15:37,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:15:37,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:15:37,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:15:37,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:15:37,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:15:37,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:15:37,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:15:37,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:15:37,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:15:37,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:15:37,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:15:37,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:15:37,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:15:37,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:15:38,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:15:38,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:15:38,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:15:38,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:15:38,057 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:15:38,058 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-10-15 22:15:38,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127efbe0/aad980b9d5d64915884be27e10932a8a/FLAG3339f3813 [2020-10-15 22:15:38,642 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:15:38,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-10-15 22:15:38,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127efbe0/aad980b9d5d64915884be27e10932a8a/FLAG3339f3813 [2020-10-15 22:15:38,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2127efbe0/aad980b9d5d64915884be27e10932a8a [2020-10-15 22:15:38,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:15:38,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:15:38,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:38,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:15:38,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:15:38,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:38" (1/1) ... [2020-10-15 22:15:38,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f82f2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:38, skipping insertion in model container [2020-10-15 22:15:38,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:38" (1/1) ... [2020-10-15 22:15:38,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:15:39,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:15:39,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:39,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:15:39,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:39,718 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:15:39,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39 WrapperNode [2020-10-15 22:15:39,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:39,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:39,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:15:39,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:15:39,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:39,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:15:39,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:15:39,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:15:39,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... [2020-10-15 22:15:39,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:15:39,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:15:39,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:15:39,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:15:39,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:15:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:15:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:15:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:15:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:15:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:15:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:15:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:15:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:15:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:15:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:15:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:15:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:15:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:15:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:15:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:15:39,870 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:15:40,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:15:40,266 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:15:40,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:40 BoogieIcfgContainer [2020-10-15 22:15:40,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:15:40,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:15:40,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:15:40,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:15:40,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:15:38" (1/3) ... [2020-10-15 22:15:40,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a15b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:40, skipping insertion in model container [2020-10-15 22:15:40,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:39" (2/3) ... [2020-10-15 22:15:40,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a15b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:40, skipping insertion in model container [2020-10-15 22:15:40,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:40" (3/3) ... [2020-10-15 22:15:40,277 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-10-15 22:15:40,290 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:15:40,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:15:40,298 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:15:40,300 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:15:40,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,338 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,338 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,343 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,343 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,350 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,351 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,360 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:40,375 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:15:40,397 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:15:40,397 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:15:40,397 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:15:40,397 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:15:40,397 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:15:40,397 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:15:40,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:15:40,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:15:40,410 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:15:40,413 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:40,415 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:40,416 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:40,463 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-15 22:15:40,464 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:15:40,469 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:15:40,473 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:15:41,951 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-15 22:15:41,951 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-15 22:15:41,958 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 22:15:42,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 22:15:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 22:15:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:15:42,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:42,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:42,036 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:42,042 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-15 22:15:42,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:42,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389484860] [2020-10-15 22:15:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:42,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389484860] [2020-10-15 22:15:42,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:42,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:42,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264661632] [2020-10-15 22:15:42,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:15:42,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:42,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:15:42,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:15:42,267 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 22:15:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:42,356 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 22:15:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:15:42,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 22:15:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:42,404 INFO L225 Difference]: With dead ends: 850 [2020-10-15 22:15:42,404 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 22:15:42,405 INFO L677 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 [2020-10-15 22:15:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 22:15:42,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 22:15:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 22:15:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 22:15:42,511 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 22:15:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:42,512 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 22:15:42,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:15:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 22:15:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:15:42,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:42,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:42,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:15:42,516 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-15 22:15:42,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:42,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285447231] [2020-10-15 22:15:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:42,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285447231] [2020-10-15 22:15:42,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:42,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:42,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857869146] [2020-10-15 22:15:42,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:42,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:42,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:42,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:42,658 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 22:15:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:42,694 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-15 22:15:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:42,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:15:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:42,701 INFO L225 Difference]: With dead ends: 778 [2020-10-15 22:15:42,701 INFO L226 Difference]: Without dead ends: 634 [2020-10-15 22:15:42,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-15 22:15:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-15 22:15:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-15 22:15:42,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-15 22:15:42,732 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-15 22:15:42,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:42,734 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-15 22:15:42,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-15 22:15:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:15:42,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:42,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:42,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:15:42,742 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:42,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:42,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-10-15 22:15:42,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:42,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379281286] [2020-10-15 22:15:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:42,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379281286] [2020-10-15 22:15:42,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:42,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:42,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247761220] [2020-10-15 22:15:42,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:42,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:42,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:42,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:42,886 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-15 22:15:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:42,960 INFO L93 Difference]: Finished difference Result 862 states and 2843 transitions. [2020-10-15 22:15:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:42,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:15:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:42,964 INFO L225 Difference]: With dead ends: 862 [2020-10-15 22:15:42,965 INFO L226 Difference]: Without dead ends: 466 [2020-10-15 22:15:42,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-15 22:15:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-10-15 22:15:42,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-15 22:15:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1482 transitions. [2020-10-15 22:15:42,984 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1482 transitions. Word has length 12 [2020-10-15 22:15:42,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:42,985 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 1482 transitions. [2020-10-15 22:15:42,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1482 transitions. [2020-10-15 22:15:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:15:42,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:42,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:42,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:15:42,987 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:42,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:42,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1203540713, now seen corresponding path program 1 times [2020-10-15 22:15:42,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:42,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520539021] [2020-10-15 22:15:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520539021] [2020-10-15 22:15:43,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:43,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589596462] [2020-10-15 22:15:43,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:43,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:43,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:43,055 INFO L87 Difference]: Start difference. First operand 466 states and 1482 transitions. Second operand 4 states. [2020-10-15 22:15:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,075 INFO L93 Difference]: Finished difference Result 502 states and 1548 transitions. [2020-10-15 22:15:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:43,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:15:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,079 INFO L225 Difference]: With dead ends: 502 [2020-10-15 22:15:43,079 INFO L226 Difference]: Without dead ends: 430 [2020-10-15 22:15:43,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:43,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-15 22:15:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-15 22:15:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-15 22:15:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-10-15 22:15:43,096 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-10-15 22:15:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,096 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-10-15 22:15:43,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-10-15 22:15:43,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:15:43,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:43,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:15:43,098 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-10-15 22:15:43,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545977406] [2020-10-15 22:15:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545977406] [2020-10-15 22:15:43,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:43,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574351569] [2020-10-15 22:15:43,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:43,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:43,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:43,151 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-10-15 22:15:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,198 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-10-15 22:15:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:43,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:15:43,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,201 INFO L225 Difference]: With dead ends: 556 [2020-10-15 22:15:43,201 INFO L226 Difference]: Without dead ends: 262 [2020-10-15 22:15:43,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-15 22:15:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-15 22:15:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-15 22:15:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-15 22:15:43,211 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-15 22:15:43,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,211 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-15 22:15:43,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-15 22:15:43,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:15:43,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:43,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:15:43,213 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-15 22:15:43,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077356777] [2020-10-15 22:15:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077356777] [2020-10-15 22:15:43,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:43,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899911784] [2020-10-15 22:15:43,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:43,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:43,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:43,286 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-15 22:15:43,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,328 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-15 22:15:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:43,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 22:15:43,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,331 INFO L225 Difference]: With dead ends: 319 [2020-10-15 22:15:43,331 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 22:15:43,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 22:15:43,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 22:15:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 22:15:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-15 22:15:43,340 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-15 22:15:43,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,341 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-15 22:15:43,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:43,341 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-15 22:15:43,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:15:43,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:43,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:15:43,342 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,343 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-15 22:15:43,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74601856] [2020-10-15 22:15:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74601856] [2020-10-15 22:15:43,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:43,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482511223] [2020-10-15 22:15:43,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:43,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:43,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:43,413 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-15 22:15:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,460 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-15 22:15:43,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:43,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 22:15:43,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,462 INFO L225 Difference]: With dead ends: 247 [2020-10-15 22:15:43,462 INFO L226 Difference]: Without dead ends: 182 [2020-10-15 22:15:43,463 INFO L677 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 [2020-10-15 22:15:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-15 22:15:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-15 22:15:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-15 22:15:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-15 22:15:43,469 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-15 22:15:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,470 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-15 22:15:43,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-15 22:15:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:15:43,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:43,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:15:43,472 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,472 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-15 22:15:43,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920967020] [2020-10-15 22:15:43,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920967020] [2020-10-15 22:15:43,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:15:43,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621052527] [2020-10-15 22:15:43,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:15:43,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:15:43,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:15:43,540 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-15 22:15:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,596 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-15 22:15:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:15:43,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 22:15:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,598 INFO L225 Difference]: With dead ends: 165 [2020-10-15 22:15:43,598 INFO L226 Difference]: Without dead ends: 132 [2020-10-15 22:15:43,599 INFO L677 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 [2020-10-15 22:15:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-15 22:15:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-15 22:15:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-15 22:15:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-15 22:15:43,604 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-15 22:15:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,604 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-15 22:15:43,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:15:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-15 22:15:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:15:43,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:43,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:15:43,606 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-15 22:15:43,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504275865] [2020-10-15 22:15:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504275865] [2020-10-15 22:15:43,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 22:15:43,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836051225] [2020-10-15 22:15:43,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:15:43,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:15:43,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:43,699 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-15 22:15:43,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,821 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-15 22:15:43,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:15:43,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:15:43,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,824 INFO L225 Difference]: With dead ends: 121 [2020-10-15 22:15:43,824 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 22:15:43,824 INFO L677 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 [2020-10-15 22:15:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 22:15:43,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-15 22:15:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 22:15:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-15 22:15:43,829 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-15 22:15:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,830 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-15 22:15:43,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:15:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-15 22:15:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:43,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,831 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, 1] [2020-10-15 22:15:43,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:15:43,831 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,832 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-15 22:15:43,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139020558] [2020-10-15 22:15:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:43,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139020558] [2020-10-15 22:15:43,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:43,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:43,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853970648] [2020-10-15 22:15:43,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:43,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:43,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:43,920 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-15 22:15:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:43,965 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-15 22:15:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:43,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:43,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:43,967 INFO L225 Difference]: With dead ends: 146 [2020-10-15 22:15:43,967 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 22:15:43,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 22:15:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 22:15:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 22:15:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-15 22:15:43,974 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-15 22:15:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:43,974 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-15 22:15:43,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-15 22:15:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:43,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:43,975 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, 1] [2020-10-15 22:15:43,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:15:43,976 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:43,977 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-15 22:15:43,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:43,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29873402] [2020-10-15 22:15:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:44,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29873402] [2020-10-15 22:15:44,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:44,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:44,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334346083] [2020-10-15 22:15:44,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:44,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:44,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:44,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:44,050 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-15 22:15:44,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:44,082 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-15 22:15:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:44,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:44,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:44,082 INFO L225 Difference]: With dead ends: 51 [2020-10-15 22:15:44,083 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:15:44,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:15:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:15:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:15:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:15:44,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 22:15:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:44,085 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:15:44,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:15:44,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:15:44,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:15:44,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:15:44 BasicIcfg [2020-10-15 22:15:44,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:15:44,093 INFO L168 Benchmark]: Toolchain (without parser) took 5133.63 ms. Allocated memory was 249.6 MB in the beginning and 428.9 MB in the end (delta: 179.3 MB). Free memory was 204.5 MB in the beginning and 363.1 MB in the end (delta: -158.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:44,094 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:44,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.40 ms. Allocated memory was 249.6 MB in the beginning and 308.3 MB in the end (delta: 58.7 MB). Free memory was 204.5 MB in the beginning and 261.3 MB in the end (delta: -56.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:44,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 308.3 MB. Free memory was 261.3 MB in the beginning and 258.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:44,102 INFO L168 Benchmark]: Boogie Preprocessor took 28.83 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:44,103 INFO L168 Benchmark]: RCFGBuilder took 472.80 ms. Allocated memory is still 308.3 MB. Free memory was 256.3 MB in the beginning and 231.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:44,111 INFO L168 Benchmark]: TraceAbstraction took 3819.52 ms. Allocated memory was 308.3 MB in the beginning and 428.9 MB in the end (delta: 120.6 MB). Free memory was 231.9 MB in the beginning and 363.1 MB in the end (delta: -131.2 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:44,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 759.40 ms. Allocated memory was 249.6 MB in the beginning and 308.3 MB in the end (delta: 58.7 MB). Free memory was 204.5 MB in the beginning and 261.3 MB in the end (delta: -56.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 308.3 MB. Free memory was 261.3 MB in the beginning and 258.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.83 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 472.80 ms. Allocated memory is still 308.3 MB. Free memory was 256.3 MB in the beginning and 231.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3819.52 ms. Allocated memory was 308.3 MB in the beginning and 428.9 MB in the end (delta: 120.6 MB). Free memory was 231.9 MB in the beginning and 363.1 MB in the end (delta: -131.2 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1256 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 115 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...