/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:47:09,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:47:09,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:47:09,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:47:09,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:47:09,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:47:09,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:47:09,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:47:09,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:47:09,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:47:09,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:47:09,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:47:09,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:47:09,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:47:09,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:47:09,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:47:09,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:47:09,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:47:09,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:47:09,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:47:09,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:47:09,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:47:09,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:47:09,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:47:09,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:47:09,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:47:09,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:47:09,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:47:09,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:47:09,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:47:09,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:47:09,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:47:09,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:47:09,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:47:09,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:47:09,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:47:09,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:47:09,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:47:09,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:47:09,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:47:09,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:47:09,713 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 [2020-10-16 13:47:09,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:47:09,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:47:09,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:47:09,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:47:09,765 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:47:09,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:47:09,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:47:09,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:47:09,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:47:09,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:47:09,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:47:09,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:47:09,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:47:09,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:47:09,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:47:09,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:47:09,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:47:09,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:47:09,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:47:09,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:47:09,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:47:09,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:47:09,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:47:09,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:47:09,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:47:09,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:47:09,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:47:09,771 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:47:09,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:47:09,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:47:09,772 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:47:10,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:47:10,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:47:10,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:47:10,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:47:10,101 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:47:10,102 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-16 13:47:10,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fd78846b/122d2aacfafc44828ee7b7a3cb1c2f0c/FLAG2f6b44c1d [2020-10-16 13:47:10,702 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:47:10,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-10-16 13:47:10,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fd78846b/122d2aacfafc44828ee7b7a3cb1c2f0c/FLAG2f6b44c1d [2020-10-16 13:47:11,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fd78846b/122d2aacfafc44828ee7b7a3cb1c2f0c [2020-10-16 13:47:11,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:47:11,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:47:11,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:47:11,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:47:11,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:47:11,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29bc5fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11, skipping insertion in model container [2020-10-16 13:47:11,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:47:11,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:47:11,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:47:11,591 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:47:11,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:47:11,786 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:47:11,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11 WrapperNode [2020-10-16 13:47:11,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:47:11,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:47:11,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:47:11,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:47:11,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:47:11,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:47:11,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:47:11,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:47:11,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (1/1) ... [2020-10-16 13:47:11,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:47:11,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:47:11,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:47:11,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:47:11,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (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 [2020-10-16 13:47:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:47:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:47:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:47:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:47:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:47:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:47:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:47:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:47:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:47:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:47:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:47:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:47:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:47:12,003 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:47:12,371 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:47:12,372 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:47:12,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:47:12 BoogieIcfgContainer [2020-10-16 13:47:12,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:47:12,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:47:12,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:47:12,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:47:12,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:47:11" (1/3) ... [2020-10-16 13:47:12,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4438bce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:47:12, skipping insertion in model container [2020-10-16 13:47:12,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:11" (2/3) ... [2020-10-16 13:47:12,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4438bce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:47:12, skipping insertion in model container [2020-10-16 13:47:12,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:47:12" (3/3) ... [2020-10-16 13:47:12,385 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-10-16 13:47:12,398 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:47:12,399 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:47:12,407 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:47:12,408 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:47:12,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,488 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,488 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,499 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,507 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:12,510 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:47:12,526 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:47:12,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:47:12,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:47:12,551 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:47:12,551 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:47:12,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:47:12,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:47:12,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:47:12,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:47:12,568 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:47:12,568 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:12,571 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:12,574 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:12,636 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 13:47:12,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:47:12,644 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:47:12,650 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:47:13,763 INFO L132 LiptonReduction]: Checked pairs total: 2318 [2020-10-16 13:47:13,764 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 13:47:13,771 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:47:13,803 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:47:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:47:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:47:13,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:13,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:13,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:13,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:13,822 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-10-16 13:47:13,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:13,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719425011] [2020-10-16 13:47:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719425011] [2020-10-16 13:47:14,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:47:14,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1560527925] [2020-10-16 13:47:14,043 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,047 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,062 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:47:14,062 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,066 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:47:14,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:47:14,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:47:14,095 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:47:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,121 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:47:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:47:14,123 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:47:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,140 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:47:14,141 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:47:14,142 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 [2020-10-16 13:47:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:47:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:47:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:47:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:47:14,225 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:47:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,227 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:47:14,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:47:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:47:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:47:14,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:47:14,229 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-10-16 13:47:14,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597635910] [2020-10-16 13:47:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597635910] [2020-10-16 13:47:14,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:47:14,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1315159194] [2020-10-16 13:47:14,312 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,313 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,314 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:47:14,314 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,315 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:47:14,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:47:14,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:47:14,317 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 13:47:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,333 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 13:47:14,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:47:14,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:47:14,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,336 INFO L225 Difference]: With dead ends: 217 [2020-10-16 13:47:14,337 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 13:47:14,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:47:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 13:47:14,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 13:47:14,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 13:47:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 13:47:14,355 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 13:47:14,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,355 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 13:47:14,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:47:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 13:47:14,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:47:14,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:47:14,357 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-10-16 13:47:14,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145288168] [2020-10-16 13:47:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145288168] [2020-10-16 13:47:14,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:14,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109791936] [2020-10-16 13:47:14,430 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,431 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,433 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-16 13:47:14,433 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,434 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:14,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:14,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:14,435 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-16 13:47:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,459 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 13:47:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:14,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 13:47:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,461 INFO L225 Difference]: With dead ends: 136 [2020-10-16 13:47:14,461 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 13:47:14,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 13:47:14,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 13:47:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 13:47:14,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 13:47:14,469 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 13:47:14,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,470 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 13:47:14,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:14,470 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 13:47:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:47:14,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:47:14,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-10-16 13:47:14,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106395923] [2020-10-16 13:47:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106395923] [2020-10-16 13:47:14,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:47:14,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [316839793] [2020-10-16 13:47:14,542 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,543 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,548 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-10-16 13:47:14,548 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,646 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:47:14,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:47:14,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:14,647 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-16 13:47:14,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,675 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 13:47:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:47:14,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:47:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,676 INFO L225 Difference]: With dead ends: 109 [2020-10-16 13:47:14,677 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 13:47:14,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 13:47:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 13:47:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 13:47:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 13:47:14,683 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 13:47:14,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,683 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 13:47:14,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:47:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 13:47:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:14,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:47:14,685 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,686 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-10-16 13:47:14,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955409399] [2020-10-16 13:47:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955409399] [2020-10-16 13:47:14,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:14,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [442974482] [2020-10-16 13:47:14,752 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,754 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,764 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-10-16 13:47:14,765 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,783 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:14,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:14,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:14,784 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-16 13:47:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,805 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 13:47:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:14,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,806 INFO L225 Difference]: With dead ends: 135 [2020-10-16 13:47:14,806 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 13:47:14,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 13:47:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 13:47:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 13:47:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-16 13:47:14,811 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-16 13:47:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,812 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-16 13:47:14,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-16 13:47:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:14,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:47:14,814 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,814 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-10-16 13:47:14,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847589241] [2020-10-16 13:47:14,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:14,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847589241] [2020-10-16 13:47:14,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:14,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:14,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2068577284] [2020-10-16 13:47:14,872 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:14,874 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:14,885 INFO L258 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-10-16 13:47:14,886 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:14,900 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:14,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:14,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:14,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:14,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:14,902 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-16 13:47:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:14,922 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-16 13:47:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:14,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:14,925 INFO L225 Difference]: With dead ends: 99 [2020-10-16 13:47:14,925 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 13:47:14,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:14,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 13:47:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 13:47:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 13:47:14,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 13:47:14,928 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 13:47:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:14,928 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 13:47:14,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 13:47:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:14,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:14,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:14,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:47:14,935 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:14,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-10-16 13:47:14,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:14,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123150782] [2020-10-16 13:47:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:15,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123150782] [2020-10-16 13:47:15,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:15,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:15,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [293673501] [2020-10-16 13:47:15,033 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:15,035 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:15,045 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-10-16 13:47:15,045 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:15,050 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:15,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:15,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:15,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:15,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:15,051 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-16 13:47:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:15,071 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 13:47:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:15,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:15,072 INFO L225 Difference]: With dead ends: 36 [2020-10-16 13:47:15,072 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:47:15,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:47:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:47:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:47:15,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:47:15,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 13:47:15,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:15,076 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:47:15,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:47:15,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:47:15,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:47:15,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:47:15 BasicIcfg [2020-10-16 13:47:15,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:47:15,088 INFO L168 Benchmark]: Toolchain (without parser) took 4065.59 ms. Allocated memory was 146.8 MB in the beginning and 245.9 MB in the end (delta: 99.1 MB). Free memory was 100.9 MB in the beginning and 99.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,093 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:47:15,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.75 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 162.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.95 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,099 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,100 INFO L168 Benchmark]: RCFGBuilder took 465.63 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 136.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,100 INFO L168 Benchmark]: TraceAbstraction took 2707.30 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.7 MB in the beginning and 99.0 MB in the end (delta: 36.7 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:15,108 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 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.75 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 162.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 88.95 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.73 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.63 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 136.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2707.30 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.7 MB in the beginning and 99.0 MB in the end (delta: 36.7 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 663 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 39 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 76 PlacesBefore, 32 PlacesAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2318 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 128 SDtfs, 66 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 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...