/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:40:59,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:40:59,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:40:59,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:40:59,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:40:59,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:40:59,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:40:59,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:40:59,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:40:59,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:40:59,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:40:59,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:40:59,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:40:59,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:40:59,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:40:59,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:40:59,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:40:59,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:40:59,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:40:59,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:40:59,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:40:59,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:40:59,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:40:59,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:40:59,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:40:59,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:40:59,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:40:59,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:40:59,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:40:59,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:40:59,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:40:59,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:40:59,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:40:59,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:40:59,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:40:59,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:40:59,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:40:59,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:40:59,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:40:59,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:40:59,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:40:59,589 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-MCR.epf [2019-12-28 04:40:59,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:40:59,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:40:59,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:40:59,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:40:59,605 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:40:59,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:40:59,606 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:40:59,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:40:59,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:40:59,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:40:59,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:40:59,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:40:59,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:40:59,607 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:40:59,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:40:59,607 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:40:59,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:40:59,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:40:59,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:40:59,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:40:59,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:40:59,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:40:59,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:40:59,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:40:59,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:40:59,610 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:40:59,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:40:59,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:40:59,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:40:59,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:40:59,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:40:59,918 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:40:59,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2019-12-28 04:41:00,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c87b791/5da079e910c04279889c77876c5a8a9e/FLAGcdc22468e [2019-12-28 04:41:00,556 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:41:00,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2019-12-28 04:41:00,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c87b791/5da079e910c04279889c77876c5a8a9e/FLAGcdc22468e [2019-12-28 04:41:00,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c87b791/5da079e910c04279889c77876c5a8a9e [2019-12-28 04:41:00,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:41:00,896 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:41:00,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:41:00,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:41:00,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:41:00,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:41:00" (1/1) ... [2019-12-28 04:41:00,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765af736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:00, skipping insertion in model container [2019-12-28 04:41:00,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:41:00" (1/1) ... [2019-12-28 04:41:00,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:41:00,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:41:01,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:41:01,385 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:41:01,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:41:01,543 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:41:01,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01 WrapperNode [2019-12-28 04:41:01,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:41:01,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:41:01,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:41:01,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:41:01,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:41:01,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:41:01,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:41:01,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:41:01,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (1/1) ... [2019-12-28 04:41:01,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:41:01,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:41:01,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:41:01,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:41:01,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (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 [2019-12-28 04:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:41:01,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:41:01,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:41:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:41:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:41:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:41:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:41:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:41:01,714 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:41:02,095 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:41:02,095 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:41:02,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:41:02 BoogieIcfgContainer [2019-12-28 04:41:02,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:41:02,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:41:02,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:41:02,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:41:02,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:41:00" (1/3) ... [2019-12-28 04:41:02,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d54ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:41:02, skipping insertion in model container [2019-12-28 04:41:02,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:41:01" (2/3) ... [2019-12-28 04:41:02,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d54ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:41:02, skipping insertion in model container [2019-12-28 04:41:02,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:41:02" (3/3) ... [2019-12-28 04:41:02,106 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2019-12-28 04:41:02,114 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:41:02,114 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:41:02,121 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:41:02,122 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:41:02,150 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,150 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,151 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,151 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,152 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,152 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,152 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,153 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,153 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,153 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,154 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,154 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,154 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,155 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,155 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,155 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,155 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,156 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,160 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,160 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,160 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,161 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,173 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,174 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,174 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,174 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,176 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,177 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,177 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,177 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:41:02,195 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:41:02,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:41:02,213 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:41:02,213 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:41:02,213 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:41:02,213 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:41:02,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:41:02,214 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:41:02,214 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:41:02,225 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 04:41:02,309 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 04:41:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 04:41:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:41:02,341 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:02,342 INFO L411 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] [2019-12-28 04:41:02,342 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:02,349 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-28 04:41:02,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:02,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75281810] [2019-12-28 04:41:02,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:02,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75281810] [2019-12-28 04:41:02,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:02,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:41:02,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1902499698] [2019-12-28 04:41:02,743 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:02,752 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:02,775 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 04:41:02,775 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:02,780 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:41:02,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:41:02,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:41:02,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:41:02,800 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 04:41:02,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:02,901 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 04:41:02,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:41:02,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 04:41:02,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:02,931 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 04:41:02,931 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 04:41:02,933 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:41:02,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 04:41:03,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 04:41:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 04:41:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 04:41:03,096 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 04:41:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:03,096 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 04:41:03,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:41:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 04:41:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:41:03,102 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:03,102 INFO L411 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] [2019-12-28 04:41:03,102 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:03,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:03,104 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-28 04:41:03,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:03,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228855040] [2019-12-28 04:41:03,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:03,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228855040] [2019-12-28 04:41:03,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:03,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:41:03,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [270022710] [2019-12-28 04:41:03,291 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:03,294 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:03,299 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 04:41:03,299 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:03,301 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:41:03,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:41:03,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:03,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:41:03,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:41:03,303 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 04:41:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:03,381 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 04:41:03,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:41:03,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 04:41:03,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:03,386 INFO L225 Difference]: With dead ends: 601 [2019-12-28 04:41:03,386 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 04:41:03,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:41:03,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 04:41:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 04:41:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 04:41:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 04:41:03,411 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 04:41:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:03,412 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 04:41:03,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:41:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 04:41:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:41:03,414 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:03,414 INFO L411 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] [2019-12-28 04:41:03,414 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:03,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-28 04:41:03,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:03,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251466861] [2019-12-28 04:41:03,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:03,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251466861] [2019-12-28 04:41:03,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:03,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:41:03,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [316873611] [2019-12-28 04:41:03,576 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:03,580 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:03,585 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 04:41:03,586 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:03,586 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:41:03,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:41:03,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:03,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:41:03,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:41:03,588 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 04:41:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:03,694 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 04:41:03,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:41:03,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 04:41:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:03,698 INFO L225 Difference]: With dead ends: 403 [2019-12-28 04:41:03,699 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 04:41:03,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:41:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 04:41:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 04:41:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 04:41:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 04:41:03,713 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 04:41:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:03,713 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 04:41:03,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:41:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 04:41:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:41:03,719 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:03,719 INFO L411 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] [2019-12-28 04:41:03,720 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:03,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:03,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-28 04:41:03,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:03,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708113660] [2019-12-28 04:41:03,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:03,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708113660] [2019-12-28 04:41:03,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:03,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:41:03,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [516497651] [2019-12-28 04:41:03,960 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:03,965 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:03,972 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 04:41:03,973 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:03,973 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:41:03,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:41:03,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:03,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:41:03,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:41:03,975 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-28 04:41:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:04,297 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-28 04:41:04,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 04:41:04,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 04:41:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:04,300 INFO L225 Difference]: With dead ends: 565 [2019-12-28 04:41:04,300 INFO L226 Difference]: Without dead ends: 394 [2019-12-28 04:41:04,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 04:41:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-28 04:41:04,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-28 04:41:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-28 04:41:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-28 04:41:04,313 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-28 04:41:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:04,314 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-28 04:41:04,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:41:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-28 04:41:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:41:04,315 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:04,315 INFO L411 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] [2019-12-28 04:41:04,316 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:04,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:04,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1506347884, now seen corresponding path program 2 times [2019-12-28 04:41:04,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:04,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184049829] [2019-12-28 04:41:04,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:04,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184049829] [2019-12-28 04:41:04,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:04,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:41:04,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1517499561] [2019-12-28 04:41:04,458 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:04,462 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:04,468 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 43 states and 50 transitions. [2019-12-28 04:41:04,468 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:04,598 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:41:04,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-28 04:41:04,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:04,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-28 04:41:04,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:41:04,599 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 9 states. [2019-12-28 04:41:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:04,758 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-28 04:41:04,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 04:41:04,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2019-12-28 04:41:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:04,761 INFO L225 Difference]: With dead ends: 556 [2019-12-28 04:41:04,761 INFO L226 Difference]: Without dead ends: 334 [2019-12-28 04:41:04,764 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:41:04,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-28 04:41:04,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-28 04:41:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-28 04:41:04,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-28 04:41:04,780 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-28 04:41:04,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:04,780 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-28 04:41:04,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-28 04:41:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-28 04:41:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:41:04,782 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:04,782 INFO L411 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] [2019-12-28 04:41:04,782 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1833116096, now seen corresponding path program 3 times [2019-12-28 04:41:04,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:04,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330060558] [2019-12-28 04:41:04,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:04,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330060558] [2019-12-28 04:41:04,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:04,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:41:04,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [211544587] [2019-12-28 04:41:04,921 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:04,925 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:04,929 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 34 transitions. [2019-12-28 04:41:04,930 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:04,930 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:41:04,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:41:04,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:04,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:41:04,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:41:04,932 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-28 04:41:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:05,059 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-28 04:41:05,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 04:41:05,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 04:41:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:05,062 INFO L225 Difference]: With dead ends: 487 [2019-12-28 04:41:05,062 INFO L226 Difference]: Without dead ends: 313 [2019-12-28 04:41:05,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:41:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-28 04:41:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-28 04:41:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-28 04:41:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-28 04:41:05,075 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-28 04:41:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:05,075 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-28 04:41:05,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:41:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-28 04:41:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:41:05,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:41:05,077 INFO L411 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] [2019-12-28 04:41:05,077 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:41:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:41:05,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 4 times [2019-12-28 04:41:05,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:41:05,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383058290] [2019-12-28 04:41:05,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:41:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:41:05,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:41:05,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383058290] [2019-12-28 04:41:05,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:41:05,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:41:05,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [218448581] [2019-12-28 04:41:05,216 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:41:05,219 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:41:05,227 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 58 transitions. [2019-12-28 04:41:05,227 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:41:05,318 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 04:41:05,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 04:41:05,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:41:05,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 04:41:05,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:41:05,322 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 10 states. [2019-12-28 04:41:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:41:05,451 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-28 04:41:05,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:41:05,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-28 04:41:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:41:05,452 INFO L225 Difference]: With dead ends: 259 [2019-12-28 04:41:05,452 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:41:05,452 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2019-12-28 04:41:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:41:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:41:05,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:41:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:41:05,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 04:41:05,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:41:05,454 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:41:05,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 04:41:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:41:05,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:41:05,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:41:05 BasicIcfg [2019-12-28 04:41:05,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:41:05,465 INFO L168 Benchmark]: Toolchain (without parser) took 4567.36 ms. Allocated memory was 135.3 MB in the beginning and 259.5 MB in the end (delta: 124.3 MB). Free memory was 98.3 MB in the beginning and 210.5 MB in the end (delta: -112.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:41:05,466 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 04:41:05,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.48 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 97.9 MB in the beginning and 155.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:41:05,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.66 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:41:05,472 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:41:05,473 INFO L168 Benchmark]: RCFGBuilder took 448.46 ms. Allocated memory is still 199.2 MB. Free memory was 152.9 MB in the beginning and 132.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-28 04:41:05,474 INFO L168 Benchmark]: TraceAbstraction took 3363.91 ms. Allocated memory was 199.2 MB in the beginning and 259.5 MB in the end (delta: 60.3 MB). Free memory was 131.3 MB in the beginning and 210.5 MB in the end (delta: -79.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 04:41:05,487 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.48 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 97.9 MB in the beginning and 155.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.66 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.46 ms. Allocated memory is still 199.2 MB. Free memory was 152.9 MB in the beginning and 132.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3363.91 ms. Allocated memory was 199.2 MB in the beginning and 259.5 MB in the end (delta: 60.3 MB). Free memory was 131.3 MB in the beginning and 210.5 MB in the end (delta: -79.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 475 SDslu, 1062 SDs, 0 SdLazy, 191 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 63 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 23817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...