/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:04:21,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:04:21,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:04:21,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:04:21,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:04:21,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:04:21,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:04:21,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:04:21,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:04:21,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:04:21,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:04:21,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:04:21,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:04:21,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:04:21,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:04:21,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:04:21,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:04:21,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:04:21,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:04:21,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:04:21,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:04:21,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:04:21,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:04:21,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:04:21,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:04:21,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:04:21,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:04:21,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:04:21,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:04:21,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:04:21,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:04:21,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:04:21,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:04:21,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:04:21,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:04:21,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:04:21,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:04:21,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:04:21,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:04:21,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:04:21,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:04:21,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:04:21,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:04:21,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:04:21,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:04:21,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:04:21,823 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:04:21,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:04:21,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:04:21,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:04:21,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:04:21,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:04:21,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:04:21,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:04:21,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:04:21,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:04:21,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:04:21,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:04:21,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:04:21,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:04:21,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:04:21,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:04:21,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:04:21,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:04:21,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:04:21,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:04:21,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:04:21,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:04:21,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:04:21,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:04:21,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:04:21,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:04:22,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:04:22,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:04:22,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:04:22,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:04:22,169 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:04:22,170 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-04-18 07:04:22,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be2791a2/0ce918c1561340f2a37ed630e1dec166/FLAG080fcab3c [2020-04-18 07:04:22,750 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:04:22,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-04-18 07:04:22,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be2791a2/0ce918c1561340f2a37ed630e1dec166/FLAG080fcab3c [2020-04-18 07:04:23,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be2791a2/0ce918c1561340f2a37ed630e1dec166 [2020-04-18 07:04:23,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:04:23,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:04:23,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:04:23,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:04:23,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:04:23,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574de9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23, skipping insertion in model container [2020-04-18 07:04:23,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:04:23,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:04:23,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:04:23,663 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:04:23,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:04:23,804 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:04:23,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23 WrapperNode [2020-04-18 07:04:23,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:04:23,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:04:23,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:04:23,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:04:23,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:04:23,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:04:23,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:04:23,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:04:23,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... [2020-04-18 07:04:23,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:04:23,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:04:23,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:04:23,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:04:23,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:04:23,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:04:23,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 07:04:23,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:04:23,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:04:23,955 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 07:04:23,955 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 07:04:23,955 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 07:04:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 07:04:23,956 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 07:04:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 07:04:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 07:04:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:04:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:04:23,960 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:04:24,376 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:04:24,376 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:04:24,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:04:24 BoogieIcfgContainer [2020-04-18 07:04:24,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:04:24,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:04:24,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:04:24,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:04:24,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:04:23" (1/3) ... [2020-04-18 07:04:24,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f6cd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:04:24, skipping insertion in model container [2020-04-18 07:04:24,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:23" (2/3) ... [2020-04-18 07:04:24,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f6cd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:04:24, skipping insertion in model container [2020-04-18 07:04:24,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:04:24" (3/3) ... [2020-04-18 07:04:24,390 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2020-04-18 07:04:24,400 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:04:24,401 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:04:24,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:04:24,409 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:04:24,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,433 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,434 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,434 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,435 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,435 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,436 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,436 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,437 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,438 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,438 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,443 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,443 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,444 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,444 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,450 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,451 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,451 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,451 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,455 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,455 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:04:24,475 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:04:24,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:04:24,492 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:04:24,492 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:04:24,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:04:24,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:04:24,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:04:24,493 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:04:24,493 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:04:24,506 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 07:04:24,982 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 07:04:24,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 07:04:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 07:04:25,012 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:25,013 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:25,014 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:25,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:25,020 INFO L82 PathProgramCache]: Analyzing trace with hash -218349271, now seen corresponding path program 1 times [2020-04-18 07:04:25,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:25,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517804120] [2020-04-18 07:04:25,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:25,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517804120] [2020-04-18 07:04:25,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:25,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:04:25,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486780050] [2020-04-18 07:04:25,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:04:25,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:25,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:04:25,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:04:25,579 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 6 states. [2020-04-18 07:04:26,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:26,197 INFO L93 Difference]: Finished difference Result 20809 states and 71911 transitions. [2020-04-18 07:04:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:04:26,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-04-18 07:04:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:26,289 INFO L225 Difference]: With dead ends: 20809 [2020-04-18 07:04:26,289 INFO L226 Difference]: Without dead ends: 6418 [2020-04-18 07:04:26,293 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:04:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2020-04-18 07:04:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5170. [2020-04-18 07:04:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5170 states. [2020-04-18 07:04:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 17281 transitions. [2020-04-18 07:04:26,731 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 17281 transitions. Word has length 35 [2020-04-18 07:04:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:26,733 INFO L479 AbstractCegarLoop]: Abstraction has 5170 states and 17281 transitions. [2020-04-18 07:04:26,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:04:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 17281 transitions. [2020-04-18 07:04:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:04:26,746 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:26,746 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:26,747 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:26,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:26,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1227475734, now seen corresponding path program 1 times [2020-04-18 07:04:26,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:26,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941213798] [2020-04-18 07:04:26,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:26,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941213798] [2020-04-18 07:04:26,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:26,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:04:26,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476655856] [2020-04-18 07:04:26,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:04:26,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:26,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:04:26,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:04:26,977 INFO L87 Difference]: Start difference. First operand 5170 states and 17281 transitions. Second operand 6 states. [2020-04-18 07:04:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:27,216 INFO L93 Difference]: Finished difference Result 5970 states and 19826 transitions. [2020-04-18 07:04:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:04:27,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 07:04:27,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:27,256 INFO L225 Difference]: With dead ends: 5970 [2020-04-18 07:04:27,257 INFO L226 Difference]: Without dead ends: 4990 [2020-04-18 07:04:27,269 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:04:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2020-04-18 07:04:27,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 4990. [2020-04-18 07:04:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4990 states. [2020-04-18 07:04:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 16597 transitions. [2020-04-18 07:04:27,440 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 16597 transitions. Word has length 37 [2020-04-18 07:04:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:27,441 INFO L479 AbstractCegarLoop]: Abstraction has 4990 states and 16597 transitions. [2020-04-18 07:04:27,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:04:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 16597 transitions. [2020-04-18 07:04:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:04:27,545 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:27,546 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:27,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:27,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:27,546 INFO L82 PathProgramCache]: Analyzing trace with hash -955803966, now seen corresponding path program 1 times [2020-04-18 07:04:27,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:27,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675161342] [2020-04-18 07:04:27,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:27,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675161342] [2020-04-18 07:04:27,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:27,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:04:27,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091398859] [2020-04-18 07:04:27,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:04:27,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:27,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:04:27,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:04:27,751 INFO L87 Difference]: Start difference. First operand 4990 states and 16597 transitions. Second operand 7 states. [2020-04-18 07:04:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:28,046 INFO L93 Difference]: Finished difference Result 7150 states and 23490 transitions. [2020-04-18 07:04:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:04:28,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-04-18 07:04:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:28,087 INFO L225 Difference]: With dead ends: 7150 [2020-04-18 07:04:28,088 INFO L226 Difference]: Without dead ends: 5530 [2020-04-18 07:04:28,088 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:04:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2020-04-18 07:04:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4514. [2020-04-18 07:04:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4514 states. [2020-04-18 07:04:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 14915 transitions. [2020-04-18 07:04:28,267 INFO L78 Accepts]: Start accepts. Automaton has 4514 states and 14915 transitions. Word has length 37 [2020-04-18 07:04:28,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:28,268 INFO L479 AbstractCegarLoop]: Abstraction has 4514 states and 14915 transitions. [2020-04-18 07:04:28,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:04:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4514 states and 14915 transitions. [2020-04-18 07:04:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 07:04:28,281 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:28,281 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:28,282 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:28,282 INFO L82 PathProgramCache]: Analyzing trace with hash -63726013, now seen corresponding path program 1 times [2020-04-18 07:04:28,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:28,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888891583] [2020-04-18 07:04:28,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:28,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888891583] [2020-04-18 07:04:28,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:28,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:04:28,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930833328] [2020-04-18 07:04:28,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:04:28,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:28,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:04:28,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:04:28,466 INFO L87 Difference]: Start difference. First operand 4514 states and 14915 transitions. Second operand 6 states. [2020-04-18 07:04:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:28,636 INFO L93 Difference]: Finished difference Result 5689 states and 18403 transitions. [2020-04-18 07:04:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:04:28,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-04-18 07:04:28,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:28,654 INFO L225 Difference]: With dead ends: 5689 [2020-04-18 07:04:28,655 INFO L226 Difference]: Without dead ends: 4029 [2020-04-18 07:04:28,655 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:04:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2020-04-18 07:04:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4029. [2020-04-18 07:04:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4029 states. [2020-04-18 07:04:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 13005 transitions. [2020-04-18 07:04:29,187 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 13005 transitions. Word has length 39 [2020-04-18 07:04:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:29,188 INFO L479 AbstractCegarLoop]: Abstraction has 4029 states and 13005 transitions. [2020-04-18 07:04:29,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:04:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 13005 transitions. [2020-04-18 07:04:29,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:04:29,199 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:29,199 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:29,200 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:29,200 INFO L82 PathProgramCache]: Analyzing trace with hash 585243076, now seen corresponding path program 1 times [2020-04-18 07:04:29,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:29,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756090204] [2020-04-18 07:04:29,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:29,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756090204] [2020-04-18 07:04:29,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:29,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:04:29,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473420210] [2020-04-18 07:04:29,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:04:29,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:29,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:04:29,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:04:29,339 INFO L87 Difference]: Start difference. First operand 4029 states and 13005 transitions. Second operand 7 states. [2020-04-18 07:04:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:29,517 INFO L93 Difference]: Finished difference Result 4029 states and 12543 transitions. [2020-04-18 07:04:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:04:29,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-04-18 07:04:29,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:29,528 INFO L225 Difference]: With dead ends: 4029 [2020-04-18 07:04:29,528 INFO L226 Difference]: Without dead ends: 2637 [2020-04-18 07:04:29,529 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:04:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2020-04-18 07:04:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2573. [2020-04-18 07:04:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2573 states. [2020-04-18 07:04:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 7833 transitions. [2020-04-18 07:04:29,597 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 7833 transitions. Word has length 41 [2020-04-18 07:04:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:29,598 INFO L479 AbstractCegarLoop]: Abstraction has 2573 states and 7833 transitions. [2020-04-18 07:04:29,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:04:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 7833 transitions. [2020-04-18 07:04:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 07:04:29,606 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:29,612 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:29,612 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:29,613 INFO L82 PathProgramCache]: Analyzing trace with hash 69081353, now seen corresponding path program 1 times [2020-04-18 07:04:29,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:29,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942678655] [2020-04-18 07:04:29,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:29,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942678655] [2020-04-18 07:04:29,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:29,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:04:29,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531884702] [2020-04-18 07:04:29,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:04:29,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:29,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:04:29,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:04:29,752 INFO L87 Difference]: Start difference. First operand 2573 states and 7833 transitions. Second operand 7 states. [2020-04-18 07:04:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:29,970 INFO L93 Difference]: Finished difference Result 3127 states and 9372 transitions. [2020-04-18 07:04:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:04:29,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 07:04:29,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:29,978 INFO L225 Difference]: With dead ends: 3127 [2020-04-18 07:04:29,978 INFO L226 Difference]: Without dead ends: 2068 [2020-04-18 07:04:29,978 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:04:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-04-18 07:04:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1754. [2020-04-18 07:04:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2020-04-18 07:04:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 5142 transitions. [2020-04-18 07:04:30,069 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 5142 transitions. Word has length 43 [2020-04-18 07:04:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:30,070 INFO L479 AbstractCegarLoop]: Abstraction has 1754 states and 5142 transitions. [2020-04-18 07:04:30,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:04:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 5142 transitions. [2020-04-18 07:04:30,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 07:04:30,075 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:30,076 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:30,076 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:30,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:30,077 INFO L82 PathProgramCache]: Analyzing trace with hash -111505431, now seen corresponding path program 1 times [2020-04-18 07:04:30,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:30,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047736592] [2020-04-18 07:04:30,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:30,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047736592] [2020-04-18 07:04:30,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:30,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:04:30,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259008555] [2020-04-18 07:04:30,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:04:30,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:04:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:04:30,226 INFO L87 Difference]: Start difference. First operand 1754 states and 5142 transitions. Second operand 6 states. [2020-04-18 07:04:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:30,298 INFO L93 Difference]: Finished difference Result 2415 states and 7074 transitions. [2020-04-18 07:04:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 07:04:30,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-04-18 07:04:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:30,305 INFO L225 Difference]: With dead ends: 2415 [2020-04-18 07:04:30,306 INFO L226 Difference]: Without dead ends: 1912 [2020-04-18 07:04:30,306 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:04:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2020-04-18 07:04:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1750. [2020-04-18 07:04:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1750 states. [2020-04-18 07:04:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 5126 transitions. [2020-04-18 07:04:30,347 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 5126 transitions. Word has length 43 [2020-04-18 07:04:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:30,348 INFO L479 AbstractCegarLoop]: Abstraction has 1750 states and 5126 transitions. [2020-04-18 07:04:30,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:04:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 5126 transitions. [2020-04-18 07:04:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 07:04:30,351 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:04:30,351 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:04:30,352 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:04:30,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:04:30,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1929306359, now seen corresponding path program 2 times [2020-04-18 07:04:30,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:04:30,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785227869] [2020-04-18 07:04:30,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:04:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:04:30,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:04:30,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785227869] [2020-04-18 07:04:30,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:04:30,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:04:30,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138394739] [2020-04-18 07:04:30,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:04:30,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:04:30,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:04:30,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:04:30,475 INFO L87 Difference]: Start difference. First operand 1750 states and 5126 transitions. Second operand 8 states. [2020-04-18 07:04:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:04:30,591 INFO L93 Difference]: Finished difference Result 1075 states and 3011 transitions. [2020-04-18 07:04:30,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 07:04:30,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-04-18 07:04:30,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:04:30,593 INFO L225 Difference]: With dead ends: 1075 [2020-04-18 07:04:30,593 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:04:30,594 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:04:30,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:04:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:04:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:04:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:04:30,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-04-18 07:04:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:04:30,595 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:04:30,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:04:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:04:30,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:04:30,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:04:30 BasicIcfg [2020-04-18 07:04:30,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:04:30,613 INFO L168 Benchmark]: Toolchain (without parser) took 7544.56 ms. Allocated memory was 144.7 MB in the beginning and 473.4 MB in the end (delta: 328.7 MB). Free memory was 101.3 MB in the beginning and 288.1 MB in the end (delta: -186.8 MB). Peak memory consumption was 142.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,614 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.12 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 158.7 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,618 INFO L168 Benchmark]: Boogie Preprocessor took 31.51 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 155.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,622 INFO L168 Benchmark]: RCFGBuilder took 491.36 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 133.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,623 INFO L168 Benchmark]: TraceAbstraction took 6221.40 ms. Allocated memory was 202.4 MB in the beginning and 473.4 MB in the end (delta: 271.1 MB). Free memory was 132.5 MB in the beginning and 288.1 MB in the end (delta: -155.6 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:04:30,638 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.12 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 158.7 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.51 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 155.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.36 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 133.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6221.40 ms. Allocated memory was 202.4 MB in the beginning and 473.4 MB in the end (delta: 271.1 MB). Free memory was 132.5 MB in the beginning and 288.1 MB in the end (delta: -155.6 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 784 SDtfs, 1199 SDslu, 2434 SDs, 0 SdLazy, 315 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred 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: 1.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2804 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 45924 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...