/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:27:49,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:27:49,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:27:49,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:27:49,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:27:49,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:27:49,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:27:49,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:27:49,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:27:49,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:27:49,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:27:49,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:27:49,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:27:49,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:27:49,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:27:49,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:27:49,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:27:49,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:27:49,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:27:49,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:27:49,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:27:49,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:27:49,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:27:49,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:27:49,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:27:49,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:27:49,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:27:49,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:27:49,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:27:49,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:27:49,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:27:49,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:27:49,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:27:49,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:27:49,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:27:49,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:27:49,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:27:49,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:27:49,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:27:49,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:27:49,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:27:49,132 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 19:27:49,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:27:49,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:27:49,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:27:49,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:27:49,167 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:27:49,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:27:49,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:27:49,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:27:49,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:27:49,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:27:49,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:27:49,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:27:49,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:27:49,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:27:49,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:27:49,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:27:49,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:27:49,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:27:49,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:27:49,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:27:49,176 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:27:49,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:27:49,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:27:49,177 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:27:49,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:27:49,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:27:49,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:27:49,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:27:49,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:27:49,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:27:49,457 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:27:49,459 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-04-18 19:27:49,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600bf012b/41f5090775684b87a99ccbb466046ca1/FLAG185fde2a5 [2020-04-18 19:27:50,109 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:27:50,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-04-18 19:27:50,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600bf012b/41f5090775684b87a99ccbb466046ca1/FLAG185fde2a5 [2020-04-18 19:27:50,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600bf012b/41f5090775684b87a99ccbb466046ca1 [2020-04-18 19:27:50,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:27:50,382 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:27:50,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:27:50,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:27:50,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:27:50,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:27:50" (1/1) ... [2020-04-18 19:27:50,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e31df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:50, skipping insertion in model container [2020-04-18 19:27:50,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:27:50" (1/1) ... [2020-04-18 19:27:50,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:27:50,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:27:50,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:27:50,915 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:27:50,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:27:51,076 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:27:51,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51 WrapperNode [2020-04-18 19:27:51,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:27:51,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:27:51,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:27:51,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:27:51,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:27:51,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:27:51,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:27:51,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:27:51,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (1/1) ... [2020-04-18 19:27:51,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:27:51,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:27:51,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:27:51,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:27:51,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (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 19:27:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:27:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:27:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:27:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:27:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:27:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:27:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:27:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:27:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:27:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:27:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:27:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:27:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:27:51,254 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 19:27:51,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:27:51,639 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:27:51,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:27:51 BoogieIcfgContainer [2020-04-18 19:27:51,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:27:51,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:27:51,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:27:51,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:27:51,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:27:50" (1/3) ... [2020-04-18 19:27:51,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47faa024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:27:51, skipping insertion in model container [2020-04-18 19:27:51,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:27:51" (2/3) ... [2020-04-18 19:27:51,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47faa024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:27:51, skipping insertion in model container [2020-04-18 19:27:51,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:27:51" (3/3) ... [2020-04-18 19:27:51,652 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-04-18 19:27:51,663 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:27:51,663 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:27:51,674 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:27:51,676 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:27:51,705 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,706 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,706 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,707 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,707 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,708 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,709 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,709 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,709 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,710 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,710 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,710 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,711 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,711 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,711 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,712 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,716 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,716 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,717 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,717 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,723 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,724 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,728 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,728 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,728 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,728 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:27:51,749 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:27:51,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:27:51,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:27:51,771 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:27:51,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:27:51,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:27:51,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:27:51,772 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:27:51,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:27:51,785 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 19:27:52,254 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 19:27:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 19:27:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:27:52,289 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:52,290 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 19:27:52,290 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:52,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:52,297 INFO L82 PathProgramCache]: Analyzing trace with hash 853459722, now seen corresponding path program 1 times [2020-04-18 19:27:52,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:52,303 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1511296806] [2020-04-18 19:27:52,317 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:52,334 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:27:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 19:27:52,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:27:52,337 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:52,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:52,338 INFO L82 PathProgramCache]: Analyzing trace with hash 853459722, now seen corresponding path program 2 times [2020-04-18 19:27:52,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:52,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378668215] [2020-04-18 19:27:52,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:52,857 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 19:27:52,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378668215] [2020-04-18 19:27:52,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:52,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:27:52,861 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:52,865 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:52,873 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 19:27:52,874 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:52,938 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:27:52,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:52,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:27:52,944 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-04-18 19:27:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:53,054 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-04-18 19:27:53,054 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-04-18 19:27:53,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:53,056 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1511296806] [2020-04-18 19:27:53,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:53,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:27:53,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1511296806] [2020-04-18 19:27:53,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:27:53,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:53,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:53,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:27:53,066 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 7 states. [2020-04-18 19:27:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:53,619 INFO L93 Difference]: Finished difference Result 20201 states and 69645 transitions. [2020-04-18 19:27:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:27:53,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 19:27:53,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:53,698 INFO L225 Difference]: With dead ends: 20201 [2020-04-18 19:27:53,698 INFO L226 Difference]: Without dead ends: 6246 [2020-04-18 19:27:53,704 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 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 19:27:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2020-04-18 19:27:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 5046. [2020-04-18 19:27:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5046 states. [2020-04-18 19:27:54,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 16781 transitions. [2020-04-18 19:27:54,109 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 16781 transitions. Word has length 35 [2020-04-18 19:27:54,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:54,112 INFO L479 AbstractCegarLoop]: Abstraction has 5046 states and 16781 transitions. [2020-04-18 19:27:54,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:27:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 16781 transitions. [2020-04-18 19:27:54,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:27:54,128 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:54,136 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 19:27:54,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:54,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1951461621, now seen corresponding path program 1 times [2020-04-18 19:27:54,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:54,138 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [553779160] [2020-04-18 19:27:54,139 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:54,141 INFO L259 McrAutomatonBuilder]: Finished intersection with 70 states and 101 transitions. [2020-04-18 19:27:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-04-18 19:27:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:27:54,147 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:54,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:54,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1951461621, now seen corresponding path program 2 times [2020-04-18 19:27:54,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:54,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394729478] [2020-04-18 19:27:54,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:54,323 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 19:27:54,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394729478] [2020-04-18 19:27:54,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:54,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:27:54,324 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:54,328 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:54,333 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 77 transitions. [2020-04-18 19:27:54,333 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:54,386 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:27:54,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:54,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:27:54,386 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-04-18 19:27:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:54,444 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-04-18 19:27:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 101 transitions. [2020-04-18 19:27:54,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:54,445 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [553779160] [2020-04-18 19:27:54,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:54,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:27:54,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [553779160] [2020-04-18 19:27:54,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:27:54,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:54,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:54,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:27:54,448 INFO L87 Difference]: Start difference. First operand 5046 states and 16781 transitions. Second operand 7 states. [2020-04-18 19:27:54,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:54,857 INFO L93 Difference]: Finished difference Result 6782 states and 22372 transitions. [2020-04-18 19:27:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:27:54,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-04-18 19:27:54,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:54,900 INFO L225 Difference]: With dead ends: 6782 [2020-04-18 19:27:54,901 INFO L226 Difference]: Without dead ends: 5642 [2020-04-18 19:27:54,911 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 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 19:27:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5642 states. [2020-04-18 19:27:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5642 to 4266. [2020-04-18 19:27:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4266 states. [2020-04-18 19:27:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 14087 transitions. [2020-04-18 19:27:55,101 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 14087 transitions. Word has length 37 [2020-04-18 19:27:55,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:55,103 INFO L479 AbstractCegarLoop]: Abstraction has 4266 states and 14087 transitions. [2020-04-18 19:27:55,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:27:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 14087 transitions. [2020-04-18 19:27:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:27:55,119 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:55,119 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 19:27:55,119 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash -487436374, now seen corresponding path program 1 times [2020-04-18 19:27:55,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:55,122 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1965001624] [2020-04-18 19:27:55,124 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:55,127 INFO L259 McrAutomatonBuilder]: Finished intersection with 148 states and 303 transitions. [2020-04-18 19:27:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-04-18 19:27:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:27:55,131 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:55,131 INFO L82 PathProgramCache]: Analyzing trace with hash -487436374, now seen corresponding path program 2 times [2020-04-18 19:27:55,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:55,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927798501] [2020-04-18 19:27:55,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:55,304 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 19:27:55,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927798501] [2020-04-18 19:27:55,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:55,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:27:55,306 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:55,309 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:55,321 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 183 transitions. [2020-04-18 19:27:55,321 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:55,354 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:27:55,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:27:55,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:27:55,355 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 6 states. [2020-04-18 19:27:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:55,425 INFO L93 Difference]: Finished difference Result 148 states and 303 transitions. [2020-04-18 19:27:55,425 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 303 transitions. [2020-04-18 19:27:55,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:55,426 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1965001624] [2020-04-18 19:27:55,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:55,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:27:55,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1965001624] [2020-04-18 19:27:55,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:27:55,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:55,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:27:55,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:27:55,428 INFO L87 Difference]: Start difference. First operand 4266 states and 14087 transitions. Second operand 6 states. [2020-04-18 19:27:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:55,560 INFO L93 Difference]: Finished difference Result 4906 states and 16114 transitions. [2020-04-18 19:27:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:27:55,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-04-18 19:27:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:55,593 INFO L225 Difference]: With dead ends: 4906 [2020-04-18 19:27:55,593 INFO L226 Difference]: Without dead ends: 4206 [2020-04-18 19:27:55,594 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 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 19:27:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2020-04-18 19:27:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 4206. [2020-04-18 19:27:55,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4206 states. [2020-04-18 19:27:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4206 states to 4206 states and 13859 transitions. [2020-04-18 19:27:55,837 INFO L78 Accepts]: Start accepts. Automaton has 4206 states and 13859 transitions. Word has length 39 [2020-04-18 19:27:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:55,838 INFO L479 AbstractCegarLoop]: Abstraction has 4206 states and 13859 transitions. [2020-04-18 19:27:55,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:27:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4206 states and 13859 transitions. [2020-04-18 19:27:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:27:55,847 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:55,847 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] [2020-04-18 19:27:55,848 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:55,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:55,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1912910474, now seen corresponding path program 1 times [2020-04-18 19:27:55,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:55,849 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1387621851] [2020-04-18 19:27:55,850 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:55,854 INFO L259 McrAutomatonBuilder]: Finished intersection with 203 states and 436 transitions. [2020-04-18 19:27:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2020-04-18 19:27:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:27:55,856 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1912910474, now seen corresponding path program 2 times [2020-04-18 19:27:55,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:55,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097839004] [2020-04-18 19:27:55,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:55,967 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 19:27:55,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097839004] [2020-04-18 19:27:55,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:55,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:27:55,969 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:55,972 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:55,987 INFO L259 McrAutomatonBuilder]: Finished intersection with 137 states and 268 transitions. [2020-04-18 19:27:55,987 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:56,045 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:27:56,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:56,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:27:56,046 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 7 states. [2020-04-18 19:27:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:56,288 INFO L93 Difference]: Finished difference Result 251 states and 530 transitions. [2020-04-18 19:27:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 530 transitions. [2020-04-18 19:27:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:27:56,289 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:27:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:56,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1664936554, now seen corresponding path program 3 times [2020-04-18 19:27:56,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:56,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294626724] [2020-04-18 19:27:56,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:56,402 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 19:27:56,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294626724] [2020-04-18 19:27:56,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:56,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:27:56,403 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:56,407 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:56,421 INFO L259 McrAutomatonBuilder]: Finished intersection with 114 states and 210 transitions. [2020-04-18 19:27:56,421 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:56,476 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times. [2020-04-18 19:27:56,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:56,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:27:56,477 INFO L87 Difference]: Start difference. First operand 251 states and 530 transitions. Second operand 7 states. [2020-04-18 19:27:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:56,584 INFO L93 Difference]: Finished difference Result 251 states and 530 transitions. [2020-04-18 19:27:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 530 transitions. [2020-04-18 19:27:56,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:56,585 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1387621851] [2020-04-18 19:27:56,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:56,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:27:56,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1387621851] [2020-04-18 19:27:56,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:27:56,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:56,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:27:56,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-04-18 19:27:56,588 INFO L87 Difference]: Start difference. First operand 4206 states and 13859 transitions. Second operand 9 states. [2020-04-18 19:27:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:57,003 INFO L93 Difference]: Finished difference Result 6836 states and 21749 transitions. [2020-04-18 19:27:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 19:27:57,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-04-18 19:27:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:57,028 INFO L225 Difference]: With dead ends: 6836 [2020-04-18 19:27:57,029 INFO L226 Difference]: Without dead ends: 2633 [2020-04-18 19:27:57,029 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=285, Invalid=707, Unknown=0, NotChecked=0, Total=992 [2020-04-18 19:27:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2020-04-18 19:27:57,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2057. [2020-04-18 19:27:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-04-18 19:27:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 6285 transitions. [2020-04-18 19:27:57,102 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 6285 transitions. Word has length 40 [2020-04-18 19:27:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:57,102 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 6285 transitions. [2020-04-18 19:27:57,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:27:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 6285 transitions. [2020-04-18 19:27:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:27:57,107 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:57,108 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 19:27:57,108 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:57,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1629639079, now seen corresponding path program 1 times [2020-04-18 19:27:57,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:57,109 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [280715692] [2020-04-18 19:27:57,110 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:57,121 INFO L259 McrAutomatonBuilder]: Finished intersection with 543 states and 1558 transitions. [2020-04-18 19:27:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states. [2020-04-18 19:27:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:27:57,127 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:57,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1629639079, now seen corresponding path program 2 times [2020-04-18 19:27:57,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:57,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67395394] [2020-04-18 19:27:57,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:57,221 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 19:27:57,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67395394] [2020-04-18 19:27:57,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:57,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:27:57,222 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:57,226 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:57,262 INFO L259 McrAutomatonBuilder]: Finished intersection with 270 states and 676 transitions. [2020-04-18 19:27:57,263 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:57,302 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 24 times. [2020-04-18 19:27:57,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:27:57,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:27:57,303 INFO L87 Difference]: Start difference. First operand 543 states. Second operand 6 states. [2020-04-18 19:27:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:57,351 INFO L93 Difference]: Finished difference Result 543 states and 1558 transitions. [2020-04-18 19:27:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 1558 transitions. [2020-04-18 19:27:57,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:57,353 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [280715692] [2020-04-18 19:27:57,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:57,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:27:57,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [280715692] [2020-04-18 19:27:57,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:27:57,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:57,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:27:57,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:27:57,354 INFO L87 Difference]: Start difference. First operand 2057 states and 6285 transitions. Second operand 6 states. [2020-04-18 19:27:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:57,440 INFO L93 Difference]: Finished difference Result 2534 states and 7623 transitions. [2020-04-18 19:27:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:27:57,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-04-18 19:27:57,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:57,448 INFO L225 Difference]: With dead ends: 2534 [2020-04-18 19:27:57,448 INFO L226 Difference]: Without dead ends: 1838 [2020-04-18 19:27:57,449 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:27:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-04-18 19:27:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2020-04-18 19:27:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-04-18 19:27:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 5510 transitions. [2020-04-18 19:27:57,501 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 5510 transitions. Word has length 42 [2020-04-18 19:27:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:57,501 INFO L479 AbstractCegarLoop]: Abstraction has 1838 states and 5510 transitions. [2020-04-18 19:27:57,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:27:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 5510 transitions. [2020-04-18 19:27:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:27:57,505 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:57,505 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 19:27:57,506 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:57,506 INFO L82 PathProgramCache]: Analyzing trace with hash 2080594988, now seen corresponding path program 1 times [2020-04-18 19:27:57,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:57,507 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [714010770] [2020-04-18 19:27:57,508 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:57,522 INFO L259 McrAutomatonBuilder]: Finished intersection with 672 states and 1971 transitions. [2020-04-18 19:27:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states. [2020-04-18 19:27:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 19:27:57,530 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:57,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2080594988, now seen corresponding path program 2 times [2020-04-18 19:27:57,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:57,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256539584] [2020-04-18 19:27:57,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:57,635 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 19:27:57,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256539584] [2020-04-18 19:27:57,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:57,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:27:57,637 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:57,640 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:57,667 INFO L259 McrAutomatonBuilder]: Finished intersection with 210 states and 474 transitions. [2020-04-18 19:27:57,667 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:57,708 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:27:57,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:57,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:27:57,709 INFO L87 Difference]: Start difference. First operand 672 states. Second operand 7 states. [2020-04-18 19:27:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:57,819 INFO L93 Difference]: Finished difference Result 672 states and 1971 transitions. [2020-04-18 19:27:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1971 transitions. [2020-04-18 19:27:57,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:57,821 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [714010770] [2020-04-18 19:27:57,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:57,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:27:57,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [714010770] [2020-04-18 19:27:57,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:27:57,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:57,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:27:57,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:27:57,823 INFO L87 Difference]: Start difference. First operand 1838 states and 5510 transitions. Second operand 7 states. [2020-04-18 19:27:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:57,948 INFO L93 Difference]: Finished difference Result 1775 states and 5150 transitions. [2020-04-18 19:27:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:27:57,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 19:27:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:57,953 INFO L225 Difference]: With dead ends: 1775 [2020-04-18 19:27:57,954 INFO L226 Difference]: Without dead ends: 1187 [2020-04-18 19:27:57,954 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:27:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2020-04-18 19:27:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1187. [2020-04-18 19:27:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1187 states. [2020-04-18 19:27:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 3354 transitions. [2020-04-18 19:27:57,984 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 3354 transitions. Word has length 43 [2020-04-18 19:27:57,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:57,985 INFO L479 AbstractCegarLoop]: Abstraction has 1187 states and 3354 transitions. [2020-04-18 19:27:57,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:27:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 3354 transitions. [2020-04-18 19:27:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:27:57,988 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:27:57,988 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 19:27:57,988 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:27:57,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 935106797, now seen corresponding path program 1 times [2020-04-18 19:27:57,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:27:57,989 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [940277715] [2020-04-18 19:27:57,991 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:58,015 INFO L259 McrAutomatonBuilder]: Finished intersection with 1110 states and 3421 transitions. [2020-04-18 19:27:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states. [2020-04-18 19:27:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:27:58,027 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:27:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:27:58,027 INFO L82 PathProgramCache]: Analyzing trace with hash 935106797, now seen corresponding path program 2 times [2020-04-18 19:27:58,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:27:58,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855136021] [2020-04-18 19:27:58,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:27:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:27:58,159 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 19:27:58,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855136021] [2020-04-18 19:27:58,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:27:58,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:27:58,160 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:27:58,163 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:27:58,187 INFO L259 McrAutomatonBuilder]: Finished intersection with 236 states and 516 transitions. [2020-04-18 19:27:58,187 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:27:58,227 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:27:58,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:27:58,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:27:58,228 INFO L87 Difference]: Start difference. First operand 1110 states. Second operand 8 states. [2020-04-18 19:27:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:58,480 INFO L93 Difference]: Finished difference Result 1110 states and 3421 transitions. [2020-04-18 19:27:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 3421 transitions. [2020-04-18 19:27:58,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:58,483 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [940277715] [2020-04-18 19:27:58,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:27:58,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:27:58,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [940277715] [2020-04-18 19:27:58,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:27:58,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:27:58,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:27:58,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:27:58,484 INFO L87 Difference]: Start difference. First operand 1187 states and 3354 transitions. Second operand 8 states. [2020-04-18 19:27:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:27:58,527 INFO L93 Difference]: Finished difference Result 755 states and 2031 transitions. [2020-04-18 19:27:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 19:27:58,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 19:27:58,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:27:58,528 INFO L225 Difference]: With dead ends: 755 [2020-04-18 19:27:58,528 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:27:58,529 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-04-18 19:27:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:27:58,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:27:58,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:27:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:27:58,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:27:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:27:58,530 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:27:58,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:27:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:27:58,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:27:58,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:27:58 BasicIcfg [2020-04-18 19:27:58,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:27:58,539 INFO L168 Benchmark]: Toolchain (without parser) took 8180.83 ms. Allocated memory was 139.5 MB in the beginning and 399.5 MB in the end (delta: 260.0 MB). Free memory was 103.0 MB in the beginning and 167.2 MB in the end (delta: -64.2 MB). Peak memory consumption was 195.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,540 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.59 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 161.3 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 158.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,542 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,543 INFO L168 Benchmark]: RCFGBuilder took 464.70 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,543 INFO L168 Benchmark]: TraceAbstraction took 6891.46 ms. Allocated memory was 203.9 MB in the beginning and 399.5 MB in the end (delta: 195.6 MB). Free memory was 135.1 MB in the beginning and 167.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 163.5 MB. Max. memory is 7.1 GB. [2020-04-18 19:27:58,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.59 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 161.3 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 158.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.70 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6891.46 ms. Allocated memory was 203.9 MB in the beginning and 399.5 MB in the end (delta: 195.6 MB). Free memory was 135.1 MB in the beginning and 167.2 MB in the end (delta: -32.1 MB). Peak memory consumption was 163.5 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: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 694 SDtfs, 1190 SDslu, 2495 SDs, 0 SdLazy, 322 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 478 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.6s 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: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 3152 StatesRemovedByMinimization, 3 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...