/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/15_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:44:28,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:44:28,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:44:28,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:44:28,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:44:28,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:44:28,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:44:28,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:44:28,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:44:28,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:44:28,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:44:28,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:44:28,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:44:28,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:44:28,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:44:28,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:44:28,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:44:28,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:44:28,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:44:28,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:44:28,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:44:28,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:44:28,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:44:28,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:44:28,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:44:28,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:44:28,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:44:28,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:44:28,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:44:28,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:44:28,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:44:28,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:44:28,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:44:28,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:44:28,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:44:28,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:44:28,162 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-VariableLbe.epf [2019-12-18 19:44:28,176 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:44:28,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:44:28,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:44:28,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:44:28,177 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:44:28,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:44:28,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:44:28,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:44:28,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:44:28,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:44:28,180 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:44:28,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:44:28,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:44:28,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:44:28,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:44:28,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:44:28,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:44:28,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:44:28,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:44:28,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:44:28,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:44:28,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:44:28,182 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:44:28,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:44:28,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:44:28,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:44:28,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:44:28,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:44:28,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:44:28,464 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:44:28,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-18 19:44:28,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efecd742b/bb364346104d49f0989b3b9e6c91643e/FLAGb34752440 [2019-12-18 19:44:29,111 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:44:29,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-18 19:44:29,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efecd742b/bb364346104d49f0989b3b9e6c91643e/FLAGb34752440 [2019-12-18 19:44:29,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efecd742b/bb364346104d49f0989b3b9e6c91643e [2019-12-18 19:44:29,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:44:29,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:44:29,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:44:29,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:44:29,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:44:29,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:44:29" (1/1) ... [2019-12-18 19:44:29,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e901827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:29, skipping insertion in model container [2019-12-18 19:44:29,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:44:29" (1/1) ... [2019-12-18 19:44:29,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:44:29,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:44:30,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:44:30,077 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:44:30,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:44:30,224 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:44:30,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30 WrapperNode [2019-12-18 19:44:30,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:44:30,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:44:30,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:44:30,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:44:30,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:44:30,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:44:30,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:44:30,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:44:30,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (1/1) ... [2019-12-18 19:44:30,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:44:30,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:44:30,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:44:30,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:44:30,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (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 [2019-12-18 19:44:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:44:30,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:44:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:44:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:44:30,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:44:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:44:30,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:44:30,375 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:44:30,726 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:44:30,727 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-18 19:44:30,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:44:30 BoogieIcfgContainer [2019-12-18 19:44:30,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:44:30,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:44:30,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:44:30,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:44:30,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:44:29" (1/3) ... [2019-12-18 19:44:30,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:44:30, skipping insertion in model container [2019-12-18 19:44:30,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:44:30" (2/3) ... [2019-12-18 19:44:30,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:44:30, skipping insertion in model container [2019-12-18 19:44:30,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:44:30" (3/3) ... [2019-12-18 19:44:30,737 INFO L109 eAbstractionObserver]: Analyzing ICFG 15_dekker.i [2019-12-18 19:44:30,746 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:44:30,746 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:44:30,752 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 19:44:30,753 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:44:30,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,776 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,780 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,781 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,781 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:44:30,806 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:44:30,824 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:44:30,824 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:44:30,824 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:44:30,824 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:44:30,825 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:44:30,825 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:44:30,825 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:44:30,825 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:44:30,837 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions [2019-12-18 19:44:30,838 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions [2019-12-18 19:44:30,874 INFO L126 PetriNetUnfolder]: 12/64 cut-off events. [2019-12-18 19:44:30,875 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:44:30,887 INFO L76 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 12/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs. 3/53 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-12-18 19:44:30,892 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions [2019-12-18 19:44:30,913 INFO L126 PetriNetUnfolder]: 12/64 cut-off events. [2019-12-18 19:44:30,913 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:44:30,915 INFO L76 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 12/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs. 3/53 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-12-18 19:44:30,918 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1302 [2019-12-18 19:44:30,919 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:44:31,714 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4161 [2019-12-18 19:44:31,715 INFO L214 etLargeBlockEncoding]: Total number of compositions: 33 [2019-12-18 19:44:31,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 38 transitions [2019-12-18 19:44:31,750 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 170 states. [2019-12-18 19:44:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-12-18 19:44:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:44:31,760 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:31,761 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:44:31,762 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:31,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash 257581824, now seen corresponding path program 1 times [2019-12-18 19:44:31,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:31,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096561720] [2019-12-18 19:44:31,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:31,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096561720] [2019-12-18 19:44:31,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:31,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:31,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145814253] [2019-12-18 19:44:31,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 19:44:31,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:31,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 19:44:32,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 19:44:32,002 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-12-18 19:44:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:32,023 INFO L93 Difference]: Finished difference Result 170 states and 390 transitions. [2019-12-18 19:44:32,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 19:44:32,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-12-18 19:44:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:32,039 INFO L225 Difference]: With dead ends: 170 [2019-12-18 19:44:32,039 INFO L226 Difference]: Without dead ends: 155 [2019-12-18 19:44:32,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 19:44:32,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-12-18 19:44:32,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-12-18 19:44:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-12-18 19:44:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 360 transitions. [2019-12-18 19:44:32,092 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 360 transitions. Word has length 5 [2019-12-18 19:44:32,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:32,092 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 360 transitions. [2019-12-18 19:44:32,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 19:44:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 360 transitions. [2019-12-18 19:44:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 19:44:32,093 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:32,094 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-18 19:44:32,094 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:32,094 INFO L82 PathProgramCache]: Analyzing trace with hash -604925666, now seen corresponding path program 1 times [2019-12-18 19:44:32,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:32,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942170031] [2019-12-18 19:44:32,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:32,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942170031] [2019-12-18 19:44:32,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:32,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:32,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837699302] [2019-12-18 19:44:32,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:32,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:32,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:32,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,161 INFO L87 Difference]: Start difference. First operand 155 states and 360 transitions. Second operand 3 states. [2019-12-18 19:44:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:32,208 INFO L93 Difference]: Finished difference Result 154 states and 341 transitions. [2019-12-18 19:44:32,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:32,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-18 19:44:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:32,217 INFO L225 Difference]: With dead ends: 154 [2019-12-18 19:44:32,217 INFO L226 Difference]: Without dead ends: 130 [2019-12-18 19:44:32,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-12-18 19:44:32,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2019-12-18 19:44:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-18 19:44:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2019-12-18 19:44:32,248 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 6 [2019-12-18 19:44:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:32,248 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2019-12-18 19:44:32,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2019-12-18 19:44:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 19:44:32,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:32,250 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-18 19:44:32,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:32,250 INFO L82 PathProgramCache]: Analyzing trace with hash -604373151, now seen corresponding path program 1 times [2019-12-18 19:44:32,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:32,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702615576] [2019-12-18 19:44:32,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:32,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702615576] [2019-12-18 19:44:32,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:32,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:32,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736274622] [2019-12-18 19:44:32,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:32,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:32,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:32,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,307 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 3 states. [2019-12-18 19:44:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:32,328 INFO L93 Difference]: Finished difference Result 116 states and 257 transitions. [2019-12-18 19:44:32,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:32,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-18 19:44:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:32,330 INFO L225 Difference]: With dead ends: 116 [2019-12-18 19:44:32,330 INFO L226 Difference]: Without dead ends: 83 [2019-12-18 19:44:32,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-18 19:44:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-12-18 19:44:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-18 19:44:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 185 transitions. [2019-12-18 19:44:32,338 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 185 transitions. Word has length 6 [2019-12-18 19:44:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:32,339 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 185 transitions. [2019-12-18 19:44:32,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 185 transitions. [2019-12-18 19:44:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:44:32,340 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:32,340 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:32,341 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash 342967710, now seen corresponding path program 1 times [2019-12-18 19:44:32,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:32,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972398906] [2019-12-18 19:44:32,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:32,395 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972398906] [2019-12-18 19:44:32,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:32,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:44:32,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918926677] [2019-12-18 19:44:32,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:32,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:32,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:32,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,399 INFO L87 Difference]: Start difference. First operand 83 states and 185 transitions. Second operand 3 states. [2019-12-18 19:44:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:32,419 INFO L93 Difference]: Finished difference Result 83 states and 180 transitions. [2019-12-18 19:44:32,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:32,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:44:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:32,424 INFO L225 Difference]: With dead ends: 83 [2019-12-18 19:44:32,424 INFO L226 Difference]: Without dead ends: 71 [2019-12-18 19:44:32,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-18 19:44:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-12-18 19:44:32,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-18 19:44:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 152 transitions. [2019-12-18 19:44:32,431 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 152 transitions. Word has length 9 [2019-12-18 19:44:32,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:32,432 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 152 transitions. [2019-12-18 19:44:32,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:32,432 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 152 transitions. [2019-12-18 19:44:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:44:32,433 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:32,433 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:32,433 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:44:32,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:32,434 INFO L82 PathProgramCache]: Analyzing trace with hash -321234212, now seen corresponding path program 1 times [2019-12-18 19:44:32,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:32,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376348266] [2019-12-18 19:44:32,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:32,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376348266] [2019-12-18 19:44:32,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:32,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:44:32,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502994792] [2019-12-18 19:44:32,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:32,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:32,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:32,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,494 INFO L87 Difference]: Start difference. First operand 71 states and 152 transitions. Second operand 3 states. [2019-12-18 19:44:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:32,511 INFO L93 Difference]: Finished difference Result 50 states and 123 transitions. [2019-12-18 19:44:32,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:32,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:44:32,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:32,512 INFO L225 Difference]: With dead ends: 50 [2019-12-18 19:44:32,512 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:44:32,512 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:44:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:44:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:44:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:44:32,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-18 19:44:32,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:44:32,513 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:44:32,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:44:32,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:44:32,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:44:32,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:44:32 BasicIcfg [2019-12-18 19:44:32,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:44:32,520 INFO L168 Benchmark]: Toolchain (without parser) took 3142.18 ms. Allocated memory was 146.3 MB in the beginning and 232.8 MB in the end (delta: 86.5 MB). Free memory was 101.7 MB in the beginning and 114.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,521 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.42 ms. Allocated memory was 146.3 MB in the beginning and 207.6 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 166.6 MB in the end (delta: -65.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 207.6 MB. Free memory was 166.6 MB in the beginning and 164.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,524 INFO L168 Benchmark]: Boogie Preprocessor took 29.08 ms. Allocated memory is still 207.6 MB. Free memory was 164.7 MB in the beginning and 162.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,525 INFO L168 Benchmark]: RCFGBuilder took 425.38 ms. Allocated memory is still 207.6 MB. Free memory was 162.8 MB in the beginning and 143.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,526 INFO L168 Benchmark]: TraceAbstraction took 1787.74 ms. Allocated memory was 207.6 MB in the beginning and 232.8 MB in the end (delta: 25.2 MB). Free memory was 143.3 MB in the beginning and 114.1 MB in the end (delta: 29.2 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:44:32,530 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 846.42 ms. Allocated memory was 146.3 MB in the beginning and 207.6 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 166.6 MB in the end (delta: -65.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 207.6 MB. Free memory was 166.6 MB in the beginning and 164.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.08 ms. Allocated memory is still 207.6 MB. Free memory was 164.7 MB in the beginning and 162.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 425.38 ms. Allocated memory is still 207.6 MB. Free memory was 162.8 MB in the beginning and 143.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1787.74 ms. Allocated memory was 207.6 MB in the beginning and 232.8 MB in the end (delta: 25.2 MB). Free memory was 143.3 MB in the beginning and 114.1 MB in the end (delta: 29.2 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 57 ProgramPointsBefore, 29 ProgramPointsAfterwards, 65 TransitionsBefore, 38 TransitionsAfterwards, 1302 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 636 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4161 CheckedPairsTotal, 33 TotalNumberOfCompositions - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 701]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 2 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 173 SDtfs, 72 SDslu, 59 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...