/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:17:29,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:17:29,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:17:29,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:17:29,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:17:29,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:17:29,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:17:29,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:17:29,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:17:29,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:17:29,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:17:29,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:17:29,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:17:29,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:17:29,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:17:29,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:17:29,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:17:29,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:17:29,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:17:29,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:17:29,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:17:29,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:17:29,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:17:29,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:17:29,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 01:17:29,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:17:29,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:17:29,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:17:29,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:17:29,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:17:29,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:17:29,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:17:29,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:17:29,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:17:29,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:17:29,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:17:29,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 01:17:29,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:17:29,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:17:29,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:17:29,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:17:29,857 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:17:29,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:17:29,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:17:29,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:17:29,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:17:29,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:17:29,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:17:29,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:17:29,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:17:29,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:17:29,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:17:29,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:17:29,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:17:29,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:17:29,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:17:29,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:17:29,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:17:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:17:29,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:17:29,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:17:29,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:17:29,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:17:29,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:17:29,862 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:17:29,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:17:29,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:17:29,862 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:17:30,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:17:30,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:17:30,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:17:30,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:17:30,328 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:17:30,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-16 01:17:30,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/959380e27/7c59d7cac6e7422286747c3f5e4bf3ca/FLAGc37d1a152 [2020-09-16 01:17:31,068 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:17:31,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-16 01:17:31,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/959380e27/7c59d7cac6e7422286747c3f5e4bf3ca/FLAGc37d1a152 [2020-09-16 01:17:31,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/959380e27/7c59d7cac6e7422286747c3f5e4bf3ca [2020-09-16 01:17:31,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:17:31,309 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:17:31,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:17:31,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:17:31,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:17:31,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:17:31" (1/1) ... [2020-09-16 01:17:31,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79b83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:31, skipping insertion in model container [2020-09-16 01:17:31,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:17:31" (1/1) ... [2020-09-16 01:17:31,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:17:31,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:17:31,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:17:31,854 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:17:31,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:17:32,016 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:17:32,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32 WrapperNode [2020-09-16 01:17:32,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:17:32,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:17:32,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:17:32,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:17:32,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:17:32,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:17:32,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:17:32,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:17:32,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... [2020-09-16 01:17:32,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:17:32,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:17:32,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:17:32,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:17:32,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-16 01:17:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:17:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 01:17:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:17:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:17:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 01:17:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 01:17:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 01:17:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 01:17:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 01:17:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 01:17:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 01:17:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:17:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:17:32,220 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:17:32,606 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:17:32,606 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 01:17:32,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:17:32 BoogieIcfgContainer [2020-09-16 01:17:32,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:17:32,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:17:32,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:17:32,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:17:32,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:17:31" (1/3) ... [2020-09-16 01:17:32,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bd5a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:17:32, skipping insertion in model container [2020-09-16 01:17:32,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:17:32" (2/3) ... [2020-09-16 01:17:32,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bd5a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:17:32, skipping insertion in model container [2020-09-16 01:17:32,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:17:32" (3/3) ... [2020-09-16 01:17:32,621 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-09-16 01:17:32,633 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:17:32,633 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:17:32,643 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 01:17:32,644 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:17:32,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,674 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,674 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,676 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,676 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,682 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,682 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,700 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,700 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:17:32,722 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 01:17:32,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:17:32,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:17:32,745 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:17:32,745 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:17:32,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:17:32,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:17:32,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:17:32,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:17:32,763 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-16 01:17:32,765 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:17:32,811 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:17:32,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:17:32,818 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:17:32,823 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-16 01:17:32,863 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-16 01:17:32,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:17:32,869 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 01:17:32,870 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 01:17:32,871 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:17:34,053 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-16 01:17:34,155 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-16 01:17:34,155 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-16 01:17:34,160 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-16 01:17:34,191 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-16 01:17:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-16 01:17:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 01:17:34,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:34,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:34,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:34,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:34,212 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-16 01:17:34,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:34,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137051569] [2020-09-16 01:17:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:34,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137051569] [2020-09-16 01:17:34,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:34,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:17:34,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1584579418] [2020-09-16 01:17:34,438 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:34,442 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:34,459 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-16 01:17:34,459 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:34,462 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:34,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 01:17:34,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:34,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 01:17:34,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:17:34,482 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-16 01:17:34,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:34,512 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-16 01:17:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 01:17:34,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-16 01:17:34,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:34,536 INFO L225 Difference]: With dead ends: 362 [2020-09-16 01:17:34,537 INFO L226 Difference]: Without dead ends: 298 [2020-09-16 01:17:34,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:17:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-16 01:17:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-16 01:17:34,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-16 01:17:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-16 01:17:34,625 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-16 01:17:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:34,626 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-16 01:17:34,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 01:17:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-16 01:17:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 01:17:34,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:34,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:34,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:17:34,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:34,629 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-16 01:17:34,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:34,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276210689] [2020-09-16 01:17:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:34,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276210689] [2020-09-16 01:17:34,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:34,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:17:34,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [435937634] [2020-09-16 01:17:34,793 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:34,794 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:34,796 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-16 01:17:34,796 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:34,796 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:34,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:17:34,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:34,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:17:34,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:17:34,799 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-16 01:17:34,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:34,835 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-16 01:17:34,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:17:34,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-16 01:17:34,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:34,839 INFO L225 Difference]: With dead ends: 330 [2020-09-16 01:17:34,839 INFO L226 Difference]: Without dead ends: 266 [2020-09-16 01:17:34,840 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 [2020-09-16 01:17:34,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-16 01:17:34,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-16 01:17:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-16 01:17:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-16 01:17:34,863 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-16 01:17:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:34,863 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-16 01:17:34,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:17:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-16 01:17:34,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 01:17:34,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:34,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:34,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:17:34,866 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:34,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:34,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-09-16 01:17:34,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:34,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155166046] [2020-09-16 01:17:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:34,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155166046] [2020-09-16 01:17:34,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:34,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:17:34,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1713226408] [2020-09-16 01:17:34,976 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:34,977 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:34,978 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-09-16 01:17:34,979 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:34,987 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:34,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:17:34,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:34,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:17:34,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:17:34,988 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-09-16 01:17:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:35,056 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-09-16 01:17:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-16 01:17:35,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-16 01:17:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:35,060 INFO L225 Difference]: With dead ends: 290 [2020-09-16 01:17:35,060 INFO L226 Difference]: Without dead ends: 242 [2020-09-16 01:17:35,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-16 01:17:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-16 01:17:35,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-09-16 01:17:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-16 01:17:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-09-16 01:17:35,076 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-09-16 01:17:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:35,077 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-09-16 01:17:35,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:17:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-09-16 01:17:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 01:17:35,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:35,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:35,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:17:35,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:35,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-09-16 01:17:35,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:35,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128424832] [2020-09-16 01:17:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:35,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128424832] [2020-09-16 01:17:35,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:35,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:17:35,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [769859706] [2020-09-16 01:17:35,157 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:35,158 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:35,160 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-09-16 01:17:35,160 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:35,222 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:35,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:17:35,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:35,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:17:35,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:17:35,224 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 4 states. [2020-09-16 01:17:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:35,247 INFO L93 Difference]: Finished difference Result 260 states and 694 transitions. [2020-09-16 01:17:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:17:35,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-16 01:17:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:35,250 INFO L225 Difference]: With dead ends: 260 [2020-09-16 01:17:35,250 INFO L226 Difference]: Without dead ends: 224 [2020-09-16 01:17:35,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:17:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-16 01:17:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-09-16 01:17:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-16 01:17:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 610 transitions. [2020-09-16 01:17:35,261 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 610 transitions. Word has length 11 [2020-09-16 01:17:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:35,262 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 610 transitions. [2020-09-16 01:17:35,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:17:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 610 transitions. [2020-09-16 01:17:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:17:35,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:35,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:35,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:17:35,265 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:35,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:35,265 INFO L82 PathProgramCache]: Analyzing trace with hash 368404844, now seen corresponding path program 1 times [2020-09-16 01:17:35,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:35,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070832777] [2020-09-16 01:17:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:35,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070832777] [2020-09-16 01:17:35,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:35,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:17:35,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1168284439] [2020-09-16 01:17:35,340 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:35,342 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:35,345 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 58 transitions. [2020-09-16 01:17:35,345 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:35,467 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:35,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:17:35,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:35,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:17:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:17:35,468 INFO L87 Difference]: Start difference. First operand 224 states and 610 transitions. Second operand 5 states. [2020-09-16 01:17:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:35,519 INFO L93 Difference]: Finished difference Result 293 states and 773 transitions. [2020-09-16 01:17:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:17:35,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-16 01:17:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:35,521 INFO L225 Difference]: With dead ends: 293 [2020-09-16 01:17:35,521 INFO L226 Difference]: Without dead ends: 146 [2020-09-16 01:17:35,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:17:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-16 01:17:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-16 01:17:35,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-16 01:17:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-16 01:17:35,527 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-16 01:17:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:35,528 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-16 01:17:35,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:17:35,528 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-16 01:17:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 01:17:35,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:35,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:35,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 01:17:35,530 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:35,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:35,530 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-09-16 01:17:35,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:35,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149450177] [2020-09-16 01:17:35,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:35,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149450177] [2020-09-16 01:17:35,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:35,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:17:35,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [442372423] [2020-09-16 01:17:35,612 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:35,614 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:35,638 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-16 01:17:35,638 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:35,733 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:35,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:17:35,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:35,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:17:35,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:17:35,734 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-16 01:17:35,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:35,779 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-09-16 01:17:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:17:35,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-16 01:17:35,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:35,781 INFO L225 Difference]: With dead ends: 188 [2020-09-16 01:17:35,781 INFO L226 Difference]: Without dead ends: 74 [2020-09-16 01:17:35,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:17:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-16 01:17:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-16 01:17:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-16 01:17:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-09-16 01:17:35,785 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-09-16 01:17:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:35,785 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-09-16 01:17:35,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:17:35,785 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-09-16 01:17:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 01:17:35,786 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:17:35,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:17:35,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 01:17:35,787 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:17:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:17:35,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-09-16 01:17:35,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:17:35,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052727895] [2020-09-16 01:17:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:17:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:17:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:17:35,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052727895] [2020-09-16 01:17:35,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:17:35,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:17:35,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2038539205] [2020-09-16 01:17:35,855 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:17:35,857 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:17:35,860 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-09-16 01:17:35,860 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:17:35,867 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:17:35,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:17:35,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:17:35,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:17:35,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:17:35,868 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-09-16 01:17:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:17:35,906 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-09-16 01:17:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:17:35,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-16 01:17:35,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:17:35,907 INFO L225 Difference]: With dead ends: 62 [2020-09-16 01:17:35,907 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 01:17:35,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:17:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 01:17:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 01:17:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 01:17:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 01:17:35,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-16 01:17:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:17:35,909 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 01:17:35,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:17:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 01:17:35,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 01:17:35,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 01:17:35,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:17:35 BasicIcfg [2020-09-16 01:17:35,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:17:35,917 INFO L168 Benchmark]: Toolchain (without parser) took 4612.71 ms. Allocated memory was 138.4 MB in the beginning and 252.2 MB in the end (delta: 113.8 MB). Free memory was 100.7 MB in the beginning and 173.9 MB in the end (delta: -73.2 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,918 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.58 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 155.6 MB in the end (delta: -55.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.30 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,923 INFO L168 Benchmark]: Boogie Preprocessor took 30.48 ms. Allocated memory is still 200.8 MB. Free memory was 153.6 MB in the beginning and 151.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,924 INFO L168 Benchmark]: RCFGBuilder took 477.59 ms. Allocated memory is still 200.8 MB. Free memory was 151.5 MB in the beginning and 129.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,925 INFO L168 Benchmark]: TraceAbstraction took 3301.85 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 128.6 MB in the beginning and 173.9 MB in the end (delta: -45.3 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-09-16 01:17:35,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.58 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 155.6 MB in the end (delta: -55.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.30 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.48 ms. Allocated memory is still 200.8 MB. Free memory was 153.6 MB in the beginning and 151.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.59 ms. Allocated memory is still 200.8 MB. Free memory was 151.5 MB in the beginning and 129.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3301.85 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 128.6 MB in the beginning and 173.9 MB in the end (delta: -45.3 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 151 SDtfs, 152 SDslu, 227 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...