/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 06:25:36,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 06:25:36,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 06:25:36,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 06:25:36,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 06:25:36,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 06:25:36,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 06:25:36,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 06:25:36,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 06:25:36,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 06:25:36,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 06:25:36,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 06:25:36,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 06:25:36,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 06:25:36,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 06:25:36,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 06:25:36,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 06:25:36,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 06:25:36,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 06:25:36,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 06:25:36,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 06:25:36,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 06:25:36,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 06:25:36,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 06:25:36,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 06:25:36,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 06:25:36,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 06:25:36,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 06:25:36,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 06:25:36,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 06:25:36,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 06:25:36,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 06:25:36,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 06:25:36,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 06:25:36,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 06:25:36,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 06:25:36,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 06:25:36,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 06:25:36,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 06:25:36,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 06:25:36,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 06:25:36,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 06:25:36,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 06:25:36,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 06:25:36,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 06:25:36,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 06:25:36,502 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 06:25:36,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 06:25:36,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 06:25:36,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 06:25:36,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 06:25:36,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 06:25:36,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 06:25:36,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 06:25:36,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 06:25:36,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 06:25:36,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 06:25:36,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 06:25:36,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 06:25:36,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 06:25:36,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 06:25:36,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 06:25:36,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 06:25:36,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 06:25:36,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 06:25:36,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 06:25:36,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 06:25:36,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 06:25:36,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 06:25:36,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 06:25:36,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 06:25:36,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 06:25:36,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 06:25:36,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 06:25:36,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 06:25:36,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 06:25:36,807 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 06:25:36,808 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-04-18 06:25:36,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c133963/e444494070ab4974b3da0393b1ff8ba7/FLAGebcdeeb7d [2020-04-18 06:25:37,440 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 06:25:37,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2020-04-18 06:25:37,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c133963/e444494070ab4974b3da0393b1ff8ba7/FLAGebcdeeb7d [2020-04-18 06:25:37,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c133963/e444494070ab4974b3da0393b1ff8ba7 [2020-04-18 06:25:37,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 06:25:37,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 06:25:37,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 06:25:37,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 06:25:37,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 06:25:37,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:25:37" (1/1) ... [2020-04-18 06:25:37,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c681e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:37, skipping insertion in model container [2020-04-18 06:25:37,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:25:37" (1/1) ... [2020-04-18 06:25:37,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 06:25:37,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 06:25:38,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:25:38,398 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 06:25:38,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:25:38,525 INFO L208 MainTranslator]: Completed translation [2020-04-18 06:25:38,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38 WrapperNode [2020-04-18 06:25:38,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 06:25:38,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 06:25:38,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 06:25:38,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 06:25:38,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 06:25:38,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 06:25:38,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 06:25:38,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 06:25:38,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (1/1) ... [2020-04-18 06:25:38,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 06:25:38,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 06:25:38,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 06:25:38,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 06:25:38,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (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 06:25:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 06:25:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 06:25:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 06:25:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 06:25:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 06:25:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 06:25:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 06:25:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 06:25:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 06:25:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 06:25:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 06:25:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 06:25:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 06:25:38,687 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 06:25:39,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 06:25:39,107 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 06:25:39,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:25:39 BoogieIcfgContainer [2020-04-18 06:25:39,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 06:25:39,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 06:25:39,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 06:25:39,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 06:25:39,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:25:37" (1/3) ... [2020-04-18 06:25:39,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a102e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:25:39, skipping insertion in model container [2020-04-18 06:25:39,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:25:38" (2/3) ... [2020-04-18 06:25:39,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a102e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:25:39, skipping insertion in model container [2020-04-18 06:25:39,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:25:39" (3/3) ... [2020-04-18 06:25:39,122 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2020-04-18 06:25:39,134 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 06:25:39,134 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 06:25:39,143 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 06:25:39,144 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 06:25:39,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,171 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,171 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,172 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,172 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,180 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,180 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,180 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,181 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,187 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,188 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,188 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,189 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,208 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,208 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,208 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,209 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:25:39,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 06:25:39,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 06:25:39,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 06:25:39,246 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 06:25:39,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 06:25:39,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 06:25:39,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 06:25:39,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 06:25:39,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 06:25:39,261 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 06:25:39,764 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8472 states. [2020-04-18 06:25:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8472 states. [2020-04-18 06:25:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 06:25:39,805 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:39,806 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] [2020-04-18 06:25:39,807 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:39,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2081382383, now seen corresponding path program 1 times [2020-04-18 06:25:39,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:39,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312510529] [2020-04-18 06:25:39,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:40,330 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 06:25:40,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312510529] [2020-04-18 06:25:40,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:40,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:25:40,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107775437] [2020-04-18 06:25:40,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:25:40,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:40,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:25:40,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:25:40,362 INFO L87 Difference]: Start difference. First operand 8472 states. Second operand 7 states. [2020-04-18 06:25:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:40,982 INFO L93 Difference]: Finished difference Result 14386 states and 49197 transitions. [2020-04-18 06:25:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 06:25:40,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 06:25:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:41,039 INFO L225 Difference]: With dead ends: 14386 [2020-04-18 06:25:41,040 INFO L226 Difference]: Without dead ends: 3441 [2020-04-18 06:25:41,042 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:25:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2020-04-18 06:25:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 2961. [2020-04-18 06:25:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2961 states. [2020-04-18 06:25:41,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 9725 transitions. [2020-04-18 06:25:41,288 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 9725 transitions. Word has length 36 [2020-04-18 06:25:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:41,291 INFO L479 AbstractCegarLoop]: Abstraction has 2961 states and 9725 transitions. [2020-04-18 06:25:41,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:25:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 9725 transitions. [2020-04-18 06:25:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 06:25:41,302 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:41,302 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 06:25:41,302 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:41,303 INFO L82 PathProgramCache]: Analyzing trace with hash -739812179, now seen corresponding path program 1 times [2020-04-18 06:25:41,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:41,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033704989] [2020-04-18 06:25:41,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:41,590 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 06:25:41,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033704989] [2020-04-18 06:25:41,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:41,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:25:41,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371480262] [2020-04-18 06:25:41,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:25:41,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:41,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:25:41,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:25:41,601 INFO L87 Difference]: Start difference. First operand 2961 states and 9725 transitions. Second operand 8 states. [2020-04-18 06:25:41,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:41,850 INFO L93 Difference]: Finished difference Result 5065 states and 16459 transitions. [2020-04-18 06:25:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 06:25:41,854 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 06:25:41,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:41,877 INFO L225 Difference]: With dead ends: 5065 [2020-04-18 06:25:41,877 INFO L226 Difference]: Without dead ends: 3021 [2020-04-18 06:25:41,890 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-04-18 06:25:41,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2020-04-18 06:25:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2637. [2020-04-18 06:25:41,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2637 states. [2020-04-18 06:25:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 8504 transitions. [2020-04-18 06:25:41,995 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 8504 transitions. Word has length 41 [2020-04-18 06:25:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:41,996 INFO L479 AbstractCegarLoop]: Abstraction has 2637 states and 8504 transitions. [2020-04-18 06:25:41,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:25:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 8504 transitions. [2020-04-18 06:25:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 06:25:42,004 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:42,004 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 06:25:42,004 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:42,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash -736309433, now seen corresponding path program 1 times [2020-04-18 06:25:42,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:42,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685676610] [2020-04-18 06:25:42,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:42,182 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 06:25:42,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685676610] [2020-04-18 06:25:42,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:42,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:25:42,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030815989] [2020-04-18 06:25:42,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:25:42,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:42,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:25:42,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:25:42,185 INFO L87 Difference]: Start difference. First operand 2637 states and 8504 transitions. Second operand 8 states. [2020-04-18 06:25:42,580 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-04-18 06:25:42,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:42,693 INFO L93 Difference]: Finished difference Result 5798 states and 18443 transitions. [2020-04-18 06:25:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 06:25:42,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 06:25:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:42,722 INFO L225 Difference]: With dead ends: 5798 [2020-04-18 06:25:42,723 INFO L226 Difference]: Without dead ends: 4098 [2020-04-18 06:25:42,723 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:25:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-04-18 06:25:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 2742. [2020-04-18 06:25:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2742 states. [2020-04-18 06:25:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 8711 transitions. [2020-04-18 06:25:42,840 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 8711 transitions. Word has length 42 [2020-04-18 06:25:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:42,841 INFO L479 AbstractCegarLoop]: Abstraction has 2742 states and 8711 transitions. [2020-04-18 06:25:42,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:25:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 8711 transitions. [2020-04-18 06:25:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 06:25:42,849 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:42,849 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 06:25:42,850 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:42,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1791563141, now seen corresponding path program 2 times [2020-04-18 06:25:42,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:42,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691083794] [2020-04-18 06:25:42,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:43,070 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 06:25:43,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691083794] [2020-04-18 06:25:43,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:43,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:25:43,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826221638] [2020-04-18 06:25:43,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:25:43,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:43,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:25:43,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:25:43,076 INFO L87 Difference]: Start difference. First operand 2742 states and 8711 transitions. Second operand 8 states. [2020-04-18 06:25:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:43,394 INFO L93 Difference]: Finished difference Result 4578 states and 14456 transitions. [2020-04-18 06:25:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 06:25:43,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 06:25:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:43,416 INFO L225 Difference]: With dead ends: 4578 [2020-04-18 06:25:43,416 INFO L226 Difference]: Without dead ends: 2950 [2020-04-18 06:25:43,417 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:25:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2020-04-18 06:25:43,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2013. [2020-04-18 06:25:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2013 states. [2020-04-18 06:25:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 6296 transitions. [2020-04-18 06:25:43,498 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 6296 transitions. Word has length 42 [2020-04-18 06:25:43,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:43,499 INFO L479 AbstractCegarLoop]: Abstraction has 2013 states and 6296 transitions. [2020-04-18 06:25:43,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:25:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 6296 transitions. [2020-04-18 06:25:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 06:25:43,506 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:43,506 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] [2020-04-18 06:25:43,506 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash -938767044, now seen corresponding path program 1 times [2020-04-18 06:25:43,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:43,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550925582] [2020-04-18 06:25:43,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:43,706 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 06:25:43,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550925582] [2020-04-18 06:25:43,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:43,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 06:25:43,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462607907] [2020-04-18 06:25:43,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 06:25:43,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:43,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 06:25:43,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 06:25:43,709 INFO L87 Difference]: Start difference. First operand 2013 states and 6296 transitions. Second operand 6 states. [2020-04-18 06:25:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:43,837 INFO L93 Difference]: Finished difference Result 2593 states and 8005 transitions. [2020-04-18 06:25:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 06:25:43,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-04-18 06:25:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:43,867 INFO L225 Difference]: With dead ends: 2593 [2020-04-18 06:25:43,868 INFO L226 Difference]: Without dead ends: 1781 [2020-04-18 06:25:43,869 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:25:43,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-04-18 06:25:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2020-04-18 06:25:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-04-18 06:25:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 5488 transitions. [2020-04-18 06:25:43,923 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 5488 transitions. Word has length 44 [2020-04-18 06:25:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:43,924 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 5488 transitions. [2020-04-18 06:25:43,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 06:25:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 5488 transitions. [2020-04-18 06:25:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 06:25:43,934 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:43,934 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 06:25:43,934 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:43,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:43,936 INFO L82 PathProgramCache]: Analyzing trace with hash -14487667, now seen corresponding path program 1 times [2020-04-18 06:25:43,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:43,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727678187] [2020-04-18 06:25:43,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:44,095 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 06:25:44,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727678187] [2020-04-18 06:25:44,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:44,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:25:44,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844265915] [2020-04-18 06:25:44,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:25:44,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:44,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:25:44,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:25:44,098 INFO L87 Difference]: Start difference. First operand 1781 states and 5488 transitions. Second operand 7 states. [2020-04-18 06:25:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:44,233 INFO L93 Difference]: Finished difference Result 1982 states and 6006 transitions. [2020-04-18 06:25:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 06:25:44,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-04-18 06:25:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:44,240 INFO L225 Difference]: With dead ends: 1982 [2020-04-18 06:25:44,240 INFO L226 Difference]: Without dead ends: 1346 [2020-04-18 06:25:44,241 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 06:25:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-04-18 06:25:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2020-04-18 06:25:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-04-18 06:25:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 4028 transitions. [2020-04-18 06:25:44,279 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 4028 transitions. Word has length 45 [2020-04-18 06:25:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:44,279 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 4028 transitions. [2020-04-18 06:25:44,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:25:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 4028 transitions. [2020-04-18 06:25:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-04-18 06:25:44,284 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:44,284 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, 1] [2020-04-18 06:25:44,284 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1958843964, now seen corresponding path program 1 times [2020-04-18 06:25:44,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:44,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349988159] [2020-04-18 06:25:44,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:44,378 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 06:25:44,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349988159] [2020-04-18 06:25:44,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:44,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:25:44,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681956393] [2020-04-18 06:25:44,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:25:44,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:25:44,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:25:44,380 INFO L87 Difference]: Start difference. First operand 1346 states and 4028 transitions. Second operand 8 states. [2020-04-18 06:25:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:44,531 INFO L93 Difference]: Finished difference Result 1175 states and 3395 transitions. [2020-04-18 06:25:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 06:25:44,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-04-18 06:25:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:44,535 INFO L225 Difference]: With dead ends: 1175 [2020-04-18 06:25:44,535 INFO L226 Difference]: Without dead ends: 815 [2020-04-18 06:25:44,536 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:25:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-04-18 06:25:44,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 783. [2020-04-18 06:25:44,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-04-18 06:25:44,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 2162 transitions. [2020-04-18 06:25:44,555 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 2162 transitions. Word has length 46 [2020-04-18 06:25:44,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:44,555 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 2162 transitions. [2020-04-18 06:25:44,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:25:44,556 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 2162 transitions. [2020-04-18 06:25:44,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 06:25:44,558 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:25:44,558 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, 1, 1, 1] [2020-04-18 06:25:44,558 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:25:44,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:25:44,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1490873073, now seen corresponding path program 1 times [2020-04-18 06:25:44,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:25:44,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256562817] [2020-04-18 06:25:44,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:25:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:25:44,689 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 06:25:44,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256562817] [2020-04-18 06:25:44,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:25:44,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:25:44,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751389778] [2020-04-18 06:25:44,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:25:44,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:25:44,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:25:44,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:25:44,692 INFO L87 Difference]: Start difference. First operand 783 states and 2162 transitions. Second operand 7 states. [2020-04-18 06:25:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:25:44,824 INFO L93 Difference]: Finished difference Result 767 states and 2111 transitions. [2020-04-18 06:25:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 06:25:44,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-04-18 06:25:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:25:44,825 INFO L225 Difference]: With dead ends: 767 [2020-04-18 06:25:44,825 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 06:25:44,825 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:25:44,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 06:25:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 06:25:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 06:25:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 06:25:44,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-04-18 06:25:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:25:44,826 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 06:25:44,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:25:44,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 06:25:44,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 06:25:44,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:25:44 BasicIcfg [2020-04-18 06:25:44,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 06:25:44,839 INFO L168 Benchmark]: Toolchain (without parser) took 7032.53 ms. Allocated memory was 146.8 MB in the beginning and 359.1 MB in the end (delta: 212.3 MB). Free memory was 102.0 MB in the beginning and 249.3 MB in the end (delta: -147.3 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,840 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 06:25:44,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.57 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 160.5 MB in the end (delta: -60.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,842 INFO L168 Benchmark]: Boogie Preprocessor took 28.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,845 INFO L168 Benchmark]: RCFGBuilder took 504.21 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,846 INFO L168 Benchmark]: TraceAbstraction took 5718.80 ms. Allocated memory was 203.9 MB in the beginning and 359.1 MB in the end (delta: 155.2 MB). Free memory was 134.1 MB in the beginning and 249.3 MB in the end (delta: -115.2 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. [2020-04-18 06:25:44,857 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.57 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 160.5 MB in the end (delta: -60.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 156.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.21 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5718.80 ms. Allocated memory was 203.9 MB in the beginning and 359.1 MB in the end (delta: 155.2 MB). Free memory was 134.1 MB in the beginning and 249.3 MB in the end (delta: -115.2 MB). Peak memory consumption was 40.0 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 764 SDtfs, 1406 SDslu, 2571 SDs, 0 SdLazy, 372 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8472occurred 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: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 3189 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 55886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...