/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:06:17,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:06:17,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:06:18,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:06:18,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:06:18,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:06:18,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:06:18,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:06:18,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:06:18,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:06:18,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:06:18,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:06:18,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:06:18,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:06:18,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:06:18,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:06:18,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:06:18,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:06:18,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:06:18,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:06:18,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:06:18,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:06:18,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:06:18,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:06:18,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:06:18,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:06:18,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:06:18,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:06:18,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:06:18,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:06:18,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:06:18,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:06:18,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:06:18,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:06:18,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:06:18,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:06:18,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:06:18,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:06:18,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:06:18,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:06:18,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:06:18,040 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-McrStrategy.epf [2020-04-18 20:06:18,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:06:18,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:06:18,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:06:18,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:06:18,057 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:06:18,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:06:18,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:06:18,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:06:18,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:06:18,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:06:18,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:06:18,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:06:18,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:06:18,059 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:06:18,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:06:18,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:06:18,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:06:18,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:06:18,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:06:18,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:06:18,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:06:18,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:06:18,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:06:18,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:06:18,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:06:18,062 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:06:18,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:06:18,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:06:18,062 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:06:18,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:06:18,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:06:18,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:06:18,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:06:18,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:06:18,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:06:18,418 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:06:18,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-04-18 20:06:18,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a4714e9/3650c2c525b048009ef7f7b2cdbb401f/FLAG63777f1b6 [2020-04-18 20:06:19,066 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:06:19,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-04-18 20:06:19,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a4714e9/3650c2c525b048009ef7f7b2cdbb401f/FLAG63777f1b6 [2020-04-18 20:06:19,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a4714e9/3650c2c525b048009ef7f7b2cdbb401f [2020-04-18 20:06:19,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:06:19,336 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:06:19,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:19,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:06:19,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:06:19,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:19" (1/1) ... [2020-04-18 20:06:19,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2eba81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:19, skipping insertion in model container [2020-04-18 20:06:19,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:06:19" (1/1) ... [2020-04-18 20:06:19,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:06:19,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:06:19,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:19,990 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:06:20,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:06:20,119 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:06:20,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20 WrapperNode [2020-04-18 20:06:20,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:06:20,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:20,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:06:20,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:06:20,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:06:20,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:06:20,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:06:20,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:06:20,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (1/1) ... [2020-04-18 20:06:20,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:06:20,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:06:20,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:06:20,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:06:20,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (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 20:06:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:06:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:06:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:06:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:06:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:06:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:06:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:06:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:06:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 20:06:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 20:06:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:06:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:06:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:06:20,298 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 20:06:20,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:06:20,738 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:06:20,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:20 BoogieIcfgContainer [2020-04-18 20:06:20,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:06:20,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:06:20,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:06:20,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:06:20,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:06:19" (1/3) ... [2020-04-18 20:06:20,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148af648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:20, skipping insertion in model container [2020-04-18 20:06:20,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:06:20" (2/3) ... [2020-04-18 20:06:20,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148af648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:06:20, skipping insertion in model container [2020-04-18 20:06:20,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:06:20" (3/3) ... [2020-04-18 20:06:20,757 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-04-18 20:06:20,768 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:06:20,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:06:20,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:06:20,780 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:06:20,821 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,822 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,822 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,823 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,824 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,824 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,826 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,826 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,826 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,827 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,827 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,828 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,829 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,829 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,829 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,830 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,830 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,830 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,838 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,838 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,838 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,850 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,850 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,850 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,851 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,858 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,858 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,858 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,859 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:06:20,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 20:06:20,890 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:06:20,890 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:06:20,890 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:06:20,890 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:06:20,891 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:06:20,891 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:06:20,891 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:06:20,891 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:06:20,904 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 20:06:21,396 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 20:06:21,399 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 20:06:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:21,428 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:21,430 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 20:06:21,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:21,437 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-04-18 20:06:21,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:21,446 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1679959986] [2020-04-18 20:06:21,462 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:21,479 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 20:06:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 20:06:21,482 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:21,483 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 2 times [2020-04-18 20:06:21,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:21,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786371630] [2020-04-18 20:06:21,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:22,023 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 20:06:22,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786371630] [2020-04-18 20:06:22,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:22,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:06:22,028 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:22,032 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:22,041 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 20:06:22,041 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:22,107 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:22,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:22,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:06:22,113 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-04-18 20:06:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:22,226 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 20:06:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 20:06:22,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:22,228 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1679959986] [2020-04-18 20:06:22,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:22,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:06:22,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1679959986] [2020-04-18 20:06:22,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:06:22,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:22,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:06:22,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:06:22,238 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 20:06:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:22,651 INFO L93 Difference]: Finished difference Result 13147 states and 45961 transitions. [2020-04-18 20:06:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 20:06:22,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 20:06:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:22,729 INFO L225 Difference]: With dead ends: 13147 [2020-04-18 20:06:22,730 INFO L226 Difference]: Without dead ends: 4652 [2020-04-18 20:06:22,734 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:22,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2020-04-18 20:06:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4652. [2020-04-18 20:06:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-04-18 20:06:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 15991 transitions. [2020-04-18 20:06:23,074 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 15991 transitions. Word has length 37 [2020-04-18 20:06:23,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:23,132 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 15991 transitions. [2020-04-18 20:06:23,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:06:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 15991 transitions. [2020-04-18 20:06:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:23,142 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:23,142 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 20:06:23,143 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:23,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:23,143 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 1 times [2020-04-18 20:06:23,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:23,144 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [949308393] [2020-04-18 20:06:23,145 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:23,147 INFO L259 McrAutomatonBuilder]: Finished intersection with 80 states and 119 transitions. [2020-04-18 20:06:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-04-18 20:06:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:23,149 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:23,150 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 2 times [2020-04-18 20:06:23,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:23,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459533349] [2020-04-18 20:06:23,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:23,341 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 20:06:23,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459533349] [2020-04-18 20:06:23,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:23,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:23,343 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:23,349 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:23,359 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 95 transitions. [2020-04-18 20:06:23,359 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:23,419 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:23,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:23,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:23,421 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 7 states. [2020-04-18 20:06:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:23,503 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2020-04-18 20:06:23,503 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2020-04-18 20:06:23,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:23,505 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [949308393] [2020-04-18 20:06:23,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:23,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:23,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [949308393] [2020-04-18 20:06:23,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:06:23,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:23,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:23,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 20:06:23,509 INFO L87 Difference]: Start difference. First operand 4652 states and 15991 transitions. Second operand 7 states. [2020-04-18 20:06:23,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:23,719 INFO L93 Difference]: Finished difference Result 5372 states and 18242 transitions. [2020-04-18 20:06:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:23,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 20:06:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:23,755 INFO L225 Difference]: With dead ends: 5372 [2020-04-18 20:06:23,756 INFO L226 Difference]: Without dead ends: 4112 [2020-04-18 20:06:23,767 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:06:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2020-04-18 20:06:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2020-04-18 20:06:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4112 states. [2020-04-18 20:06:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 13999 transitions. [2020-04-18 20:06:24,069 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 13999 transitions. Word has length 39 [2020-04-18 20:06:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:24,070 INFO L479 AbstractCegarLoop]: Abstraction has 4112 states and 13999 transitions. [2020-04-18 20:06:24,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:06:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 13999 transitions. [2020-04-18 20:06:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:24,080 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:24,081 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 20:06:24,081 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:24,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-04-18 20:06:24,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:24,084 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [98580892] [2020-04-18 20:06:24,086 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:24,088 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 103 transitions. [2020-04-18 20:06:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 20:06:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:06:24,091 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 2 times [2020-04-18 20:06:24,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:24,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965741905] [2020-04-18 20:06:24,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:24,314 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 20:06:24,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965741905] [2020-04-18 20:06:24,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:24,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:24,316 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:24,320 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:24,327 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 79 transitions. [2020-04-18 20:06:24,327 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:24,376 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:24,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:24,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:06:24,377 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 7 states. [2020-04-18 20:06:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:24,495 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2020-04-18 20:06:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 103 transitions. [2020-04-18 20:06:24,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:24,496 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [98580892] [2020-04-18 20:06:24,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:24,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:24,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [98580892] [2020-04-18 20:06:24,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:06:24,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:24,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:24,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:24,499 INFO L87 Difference]: Start difference. First operand 4112 states and 13999 transitions. Second operand 7 states. [2020-04-18 20:06:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:24,788 INFO L93 Difference]: Finished difference Result 7547 states and 25432 transitions. [2020-04-18 20:06:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 20:06:24,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 20:06:24,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:24,827 INFO L225 Difference]: With dead ends: 7547 [2020-04-18 20:06:24,828 INFO L226 Difference]: Without dead ends: 4792 [2020-04-18 20:06:24,828 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:06:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2020-04-18 20:06:24,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4792. [2020-04-18 20:06:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4792 states. [2020-04-18 20:06:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 16188 transitions. [2020-04-18 20:06:25,129 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 16188 transitions. Word has length 39 [2020-04-18 20:06:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:25,130 INFO L479 AbstractCegarLoop]: Abstraction has 4792 states and 16188 transitions. [2020-04-18 20:06:25,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:06:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 16188 transitions. [2020-04-18 20:06:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:25,144 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:25,144 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 20:06:25,145 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:25,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:25,153 INFO L82 PathProgramCache]: Analyzing trace with hash 773486317, now seen corresponding path program 1 times [2020-04-18 20:06:25,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:25,154 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [178609984] [2020-04-18 20:06:25,161 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:25,166 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 385 transitions. [2020-04-18 20:06:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-04-18 20:06:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:25,168 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:25,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1162539155, now seen corresponding path program 2 times [2020-04-18 20:06:25,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:25,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111806944] [2020-04-18 20:06:25,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:25,345 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 20:06:25,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111806944] [2020-04-18 20:06:25,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:25,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:25,346 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:25,350 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:25,365 INFO L259 McrAutomatonBuilder]: Finished intersection with 134 states and 265 transitions. [2020-04-18 20:06:25,365 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:25,440 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:25,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:25,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:06:25,441 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 8 states. [2020-04-18 20:06:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:25,674 INFO L93 Difference]: Finished difference Result 182 states and 385 transitions. [2020-04-18 20:06:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 385 transitions. [2020-04-18 20:06:25,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:25,676 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [178609984] [2020-04-18 20:06:25,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:25,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:25,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [178609984] [2020-04-18 20:06:25,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:06:25,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:06:25,678 INFO L87 Difference]: Start difference. First operand 4792 states and 16188 transitions. Second operand 8 states. [2020-04-18 20:06:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:26,215 INFO L93 Difference]: Finished difference Result 8547 states and 28502 transitions. [2020-04-18 20:06:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 20:06:26,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 20:06:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:26,679 INFO L225 Difference]: With dead ends: 8547 [2020-04-18 20:06:26,679 INFO L226 Difference]: Without dead ends: 5092 [2020-04-18 20:06:26,680 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-04-18 20:06:26,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2020-04-18 20:06:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4642. [2020-04-18 20:06:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4642 states. [2020-04-18 20:06:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 15557 transitions. [2020-04-18 20:06:26,852 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 15557 transitions. Word has length 41 [2020-04-18 20:06:26,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:26,853 INFO L479 AbstractCegarLoop]: Abstraction has 4642 states and 15557 transitions. [2020-04-18 20:06:26,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:06:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 15557 transitions. [2020-04-18 20:06:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:26,865 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:26,865 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 20:06:26,866 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:26,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:26,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 1 times [2020-04-18 20:06:26,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:26,867 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [644880440] [2020-04-18 20:06:26,868 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:26,872 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 305 transitions. [2020-04-18 20:06:26,873 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-04-18 20:06:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 20:06:26,874 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:26,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 2 times [2020-04-18 20:06:26,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:26,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095768522] [2020-04-18 20:06:26,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:26,993 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 20:06:26,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095768522] [2020-04-18 20:06:26,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:26,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:26,995 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:26,998 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:27,008 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 185 transitions. [2020-04-18 20:06:27,009 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:27,071 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:27,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:27,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:06:27,072 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-04-18 20:06:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:27,185 INFO L93 Difference]: Finished difference Result 150 states and 305 transitions. [2020-04-18 20:06:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 305 transitions. [2020-04-18 20:06:27,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:27,186 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [644880440] [2020-04-18 20:06:27,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:27,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:06:27,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [644880440] [2020-04-18 20:06:27,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 20:06:27,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:27,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:27,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:06:27,188 INFO L87 Difference]: Start difference. First operand 4642 states and 15557 transitions. Second operand 9 states. [2020-04-18 20:06:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:27,331 INFO L93 Difference]: Finished difference Result 5592 states and 18602 transitions. [2020-04-18 20:06:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 20:06:27,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-04-18 20:06:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:27,345 INFO L225 Difference]: With dead ends: 5592 [2020-04-18 20:06:27,346 INFO L226 Difference]: Without dead ends: 2687 [2020-04-18 20:06:27,346 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-04-18 20:06:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-04-18 20:06:27,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2687. [2020-04-18 20:06:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2687 states. [2020-04-18 20:06:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 8785 transitions. [2020-04-18 20:06:27,433 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 8785 transitions. Word has length 41 [2020-04-18 20:06:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:27,433 INFO L479 AbstractCegarLoop]: Abstraction has 2687 states and 8785 transitions. [2020-04-18 20:06:27,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 20:06:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 8785 transitions. [2020-04-18 20:06:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:06:27,440 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:27,440 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] [2020-04-18 20:06:27,441 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:27,441 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 1 times [2020-04-18 20:06:27,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:27,442 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [619436134] [2020-04-18 20:06:27,443 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:27,448 INFO L259 McrAutomatonBuilder]: Finished intersection with 237 states and 526 transitions. [2020-04-18 20:06:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2020-04-18 20:06:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 20:06:27,451 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:27,452 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 2 times [2020-04-18 20:06:27,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:27,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099001022] [2020-04-18 20:06:27,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:27,573 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 20:06:27,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099001022] [2020-04-18 20:06:27,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:27,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:27,575 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:27,579 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:27,653 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 262 transitions. [2020-04-18 20:06:27,653 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:27,705 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:06:27,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:27,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:06:27,706 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 8 states. [2020-04-18 20:06:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:27,788 INFO L93 Difference]: Finished difference Result 237 states and 526 transitions. [2020-04-18 20:06:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 526 transitions. [2020-04-18 20:06:27,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:27,790 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [619436134] [2020-04-18 20:06:27,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:27,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:06:27,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [619436134] [2020-04-18 20:06:27,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:06:27,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:06:27,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:06:27,792 INFO L87 Difference]: Start difference. First operand 2687 states and 8785 transitions. Second operand 8 states. [2020-04-18 20:06:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:27,898 INFO L93 Difference]: Finished difference Result 3727 states and 12109 transitions. [2020-04-18 20:06:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:06:27,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 20:06:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:27,907 INFO L225 Difference]: With dead ends: 3727 [2020-04-18 20:06:27,907 INFO L226 Difference]: Without dead ends: 1557 [2020-04-18 20:06:27,908 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:06:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-04-18 20:06:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2020-04-18 20:06:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-04-18 20:06:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 4927 transitions. [2020-04-18 20:06:27,950 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 4927 transitions. Word has length 42 [2020-04-18 20:06:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:27,950 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 4927 transitions. [2020-04-18 20:06:27,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:06:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 4927 transitions. [2020-04-18 20:06:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:27,955 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:06:27,955 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, 1, 1] [2020-04-18 20:06:27,955 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:06:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:27,956 INFO L82 PathProgramCache]: Analyzing trace with hash -493734196, now seen corresponding path program 1 times [2020-04-18 20:06:27,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:06:27,956 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [460732136] [2020-04-18 20:06:27,959 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:27,978 INFO L259 McrAutomatonBuilder]: Finished intersection with 705 states and 2089 transitions. [2020-04-18 20:06:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states. [2020-04-18 20:06:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:27,986 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:06:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:27,986 INFO L82 PathProgramCache]: Analyzing trace with hash 15671900, now seen corresponding path program 2 times [2020-04-18 20:06:27,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:27,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685198200] [2020-04-18 20:06:27,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:06:28,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685198200] [2020-04-18 20:06:28,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:28,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:28,150 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:28,155 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:28,211 INFO L259 McrAutomatonBuilder]: Finished intersection with 305 states and 762 transitions. [2020-04-18 20:06:28,211 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:28,328 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 20:06:28,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 20:06:28,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:06:28,330 INFO L87 Difference]: Start difference. First operand 705 states. Second operand 11 states. [2020-04-18 20:06:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:28,602 INFO L93 Difference]: Finished difference Result 807 states and 2304 transitions. [2020-04-18 20:06:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2304 transitions. [2020-04-18 20:06:28,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:28,605 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:06:28,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:28,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1787096026, now seen corresponding path program 3 times [2020-04-18 20:06:28,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:28,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421055733] [2020-04-18 20:06:28,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:28,730 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 20:06:28,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421055733] [2020-04-18 20:06:28,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:28,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:06:28,732 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:28,735 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:28,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 257 states and 631 transitions. [2020-04-18 20:06:28,812 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:28,845 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 20:06:28,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 20:06:28,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-04-18 20:06:28,846 INFO L87 Difference]: Start difference. First operand 807 states and 2304 transitions. Second operand 9 states. [2020-04-18 20:06:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:29,115 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 20:06:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 20:06:29,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:06:29,119 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:06:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:06:29,119 INFO L82 PathProgramCache]: Analyzing trace with hash -715179570, now seen corresponding path program 4 times [2020-04-18 20:06:29,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:06:29,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197712847] [2020-04-18 20:06:29,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:06:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:06:29,218 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 20:06:29,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197712847] [2020-04-18 20:06:29,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:06:29,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:06:29,219 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:06:29,223 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:06:29,251 INFO L259 McrAutomatonBuilder]: Finished intersection with 194 states and 438 transitions. [2020-04-18 20:06:29,252 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:06:29,289 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:06:29,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:06:29,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 20:06:29,291 INFO L87 Difference]: Start difference. First operand 900 states and 2443 transitions. Second operand 7 states. [2020-04-18 20:06:29,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:29,394 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 20:06:29,394 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 20:06:29,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:29,398 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [460732136] [2020-04-18 20:06:29,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:06:29,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:06:29,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [460732136] [2020-04-18 20:06:29,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 20:06:29,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:06:29,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 20:06:29,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 20:06:29,400 INFO L87 Difference]: Start difference. First operand 1557 states and 4927 transitions. Second operand 15 states. [2020-04-18 20:06:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:06:29,717 INFO L93 Difference]: Finished difference Result 1397 states and 4399 transitions. [2020-04-18 20:06:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 20:06:29,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-04-18 20:06:29,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:06:29,719 INFO L225 Difference]: With dead ends: 1397 [2020-04-18 20:06:29,719 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:06:29,720 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 20:06:29,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:06:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:06:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:06:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:06:29,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 20:06:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:06:29,722 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:06:29,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 20:06:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:06:29,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:06:29,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:06:29 BasicIcfg [2020-04-18 20:06:29,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:06:29,728 INFO L168 Benchmark]: Toolchain (without parser) took 10416.49 ms. Allocated memory was 146.3 MB in the beginning and 541.1 MB in the end (delta: 394.8 MB). Free memory was 103.3 MB in the beginning and 299.4 MB in the end (delta: -196.1 MB). Peak memory consumption was 198.7 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,729 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.43 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 101.3 MB in the beginning and 156.5 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.44 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 154.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,731 INFO L168 Benchmark]: Boogie Preprocessor took 31.92 ms. Allocated memory is still 201.9 MB. Free memory was 154.2 MB in the beginning and 152.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,732 INFO L168 Benchmark]: RCFGBuilder took 521.49 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 130.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,733 INFO L168 Benchmark]: TraceAbstraction took 8981.18 ms. Allocated memory was 201.9 MB in the beginning and 541.1 MB in the end (delta: 339.2 MB). Free memory was 129.6 MB in the beginning and 299.4 MB in the end (delta: -169.8 MB). Peak memory consumption was 169.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:06:29,737 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 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.43 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 101.3 MB in the beginning and 156.5 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.44 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 154.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.92 ms. Allocated memory is still 201.9 MB. Free memory was 154.2 MB in the beginning and 152.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.49 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 130.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8981.18 ms. Allocated memory was 201.9 MB in the beginning and 541.1 MB in the end (delta: 339.2 MB). Free memory was 129.6 MB in the beginning and 299.4 MB in the end (delta: -169.8 MB). Peak memory consumption was 169.4 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 711 SDtfs, 1348 SDslu, 2747 SDs, 0 SdLazy, 267 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8473occurred 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: 1.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 450 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...