/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-nondet/nondet-array-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:53:17,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:53:17,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:53:17,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:53:17,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:53:17,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:53:17,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:53:17,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:53:17,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:53:17,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:53:17,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:53:17,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:53:17,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:53:17,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:53:17,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:53:17,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:53:17,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:53:17,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:53:17,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:53:17,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:53:17,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:53:17,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:53:17,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:53:17,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:53:17,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:53:17,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:53:17,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:53:17,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:53:17,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:53:17,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:53:17,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:53:17,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:53:17,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:53:17,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:53:17,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:53:17,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:53:17,186 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 05:53:17,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:53:17,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:53:17,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:53:17,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:53:17,211 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:53:17,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:53:17,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:53:17,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:53:17,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:53:17,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:53:17,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:53:17,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:53:17,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:53:17,214 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:53:17,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:53:17,214 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:53:17,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:53:17,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:53:17,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:53:17,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:53:17,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:53:17,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:53:17,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:53:17,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:53:17,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:53:17,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:53:17,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:53:17,216 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:53:17,216 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:53:17,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:53:17,218 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:53:17,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:53:17,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:53:17,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:53:17,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:53:17,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:53:17,529 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:53:17,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2019-12-28 05:53:17,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74cc85fc0/28e56e36ad8248c5a618f043a2c9edb2/FLAGcf886c501 [2019-12-28 05:53:18,109 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:53:18,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2019-12-28 05:53:18,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74cc85fc0/28e56e36ad8248c5a618f043a2c9edb2/FLAGcf886c501 [2019-12-28 05:53:18,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74cc85fc0/28e56e36ad8248c5a618f043a2c9edb2 [2019-12-28 05:53:18,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:53:18,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:53:18,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:53:18,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:53:18,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:53:18,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:53:18" (1/1) ... [2019-12-28 05:53:18,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ee76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:18, skipping insertion in model container [2019-12-28 05:53:18,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:53:18" (1/1) ... [2019-12-28 05:53:18,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:53:18,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:53:19,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:53:19,065 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:53:19,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:53:19,211 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:53:19,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19 WrapperNode [2019-12-28 05:53:19,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:53:19,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:53:19,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:53:19,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:53:19,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:53:19,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:53:19,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:53:19,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:53:19,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (1/1) ... [2019-12-28 05:53:19,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:53:19,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:53:19,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:53:19,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:53:19,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (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 05:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-12-28 05:53:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-28 05:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-12-28 05:53:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-12-28 05:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:53:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:53:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:53:19,365 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 05:53:19,726 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:53:19,726 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-28 05:53:19,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:53:19 BoogieIcfgContainer [2019-12-28 05:53:19,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:53:19,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:53:19,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:53:19,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:53:19,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:53:18" (1/3) ... [2019-12-28 05:53:19,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93c829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:53:19, skipping insertion in model container [2019-12-28 05:53:19,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:19" (2/3) ... [2019-12-28 05:53:19,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93c829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:53:19, skipping insertion in model container [2019-12-28 05:53:19,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:53:19" (3/3) ... [2019-12-28 05:53:19,736 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2019-12-28 05:53:19,745 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:53:19,745 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:53:19,752 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:53:19,753 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:53:19,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,777 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,777 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,778 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,778 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,778 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,779 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,783 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,784 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,784 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,784 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,784 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:19,806 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-28 05:53:19,827 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:19,828 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:19,828 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:19,828 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:19,828 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:19,829 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:19,829 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:19,829 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:19,841 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 66 transitions [2019-12-28 05:53:19,862 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 248 states. [2019-12-28 05:53:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2019-12-28 05:53:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-28 05:53:19,875 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:19,876 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 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 05:53:19,877 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:19,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1709809530, now seen corresponding path program 1 times [2019-12-28 05:53:19,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:19,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694807274] [2019-12-28 05:53:19,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:20,111 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:20,112 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:20,113 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:20,113 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-28 05:53:20,130 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,130 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,130 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,130 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,131 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,132 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,132 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,132 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,132 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,133 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,133 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,133 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,133 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,134 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,136 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,136 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,137 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,137 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,137 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,150 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,151 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,151 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,152 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,152 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:20,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-28 05:53:20,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:20,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:20,158 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:20,158 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:20,158 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:20,158 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:20,158 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:20,158 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:20,163 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 73 transitions [2019-12-28 05:53:20,232 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1622 states. [2019-12-28 05:53:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states. [2019-12-28 05:53:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:20,240 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:20,240 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] [2019-12-28 05:53:20,240 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:20,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:20,241 INFO L82 PathProgramCache]: Analyzing trace with hash -204838260, now seen corresponding path program 1 times [2019-12-28 05:53:20,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:20,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310598326] [2019-12-28 05:53:20,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:20,370 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 05:53:20,370 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310598326] [2019-12-28 05:53:20,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:20,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-28 05:53:20,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [180080264] [2019-12-28 05:53:20,373 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:20,381 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:20,409 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:20,409 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:20,418 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:20,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-28 05:53:20,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:20,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-28 05:53:20,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-28 05:53:20,438 INFO L87 Difference]: Start difference. First operand 1622 states. Second operand 2 states. [2019-12-28 05:53:20,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:20,495 INFO L93 Difference]: Finished difference Result 1622 states and 3943 transitions. [2019-12-28 05:53:20,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-28 05:53:20,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-12-28 05:53:20,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:20,522 INFO L225 Difference]: With dead ends: 1622 [2019-12-28 05:53:20,522 INFO L226 Difference]: Without dead ends: 1326 [2019-12-28 05:53:20,524 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 [2019-12-28 05:53:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2019-12-28 05:53:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2019-12-28 05:53:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2019-12-28 05:53:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3227 transitions. [2019-12-28 05:53:20,674 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3227 transitions. Word has length 29 [2019-12-28 05:53:20,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:20,675 INFO L462 AbstractCegarLoop]: Abstraction has 1326 states and 3227 transitions. [2019-12-28 05:53:20,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-28 05:53:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3227 transitions. [2019-12-28 05:53:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:20,676 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:20,677 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] [2019-12-28 05:53:20,677 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash 514352365, now seen corresponding path program 1 times [2019-12-28 05:53:20,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:20,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911798281] [2019-12-28 05:53:20,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:20,830 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 05:53:20,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911798281] [2019-12-28 05:53:20,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:20,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:53:20,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [128487212] [2019-12-28 05:53:20,832 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:20,834 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:20,837 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:20,837 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:20,838 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:20,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:53:20,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:20,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:53:20,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:53:20,840 INFO L87 Difference]: Start difference. First operand 1326 states and 3227 transitions. Second operand 5 states. [2019-12-28 05:53:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:20,921 INFO L93 Difference]: Finished difference Result 1669 states and 4060 transitions. [2019-12-28 05:53:20,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:53:20,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-28 05:53:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:20,931 INFO L225 Difference]: With dead ends: 1669 [2019-12-28 05:53:20,931 INFO L226 Difference]: Without dead ends: 1473 [2019-12-28 05:53:20,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:53:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-12-28 05:53:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1375. [2019-12-28 05:53:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1375 states. [2019-12-28 05:53:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 3346 transitions. [2019-12-28 05:53:20,978 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 3346 transitions. Word has length 29 [2019-12-28 05:53:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:20,979 INFO L462 AbstractCegarLoop]: Abstraction has 1375 states and 3346 transitions. [2019-12-28 05:53:20,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:53:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 3346 transitions. [2019-12-28 05:53:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-28 05:53:20,982 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:20,982 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:20,982 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:20,983 INFO L82 PathProgramCache]: Analyzing trace with hash -753033193, now seen corresponding path program 1 times [2019-12-28 05:53:20,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:20,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216650920] [2019-12-28 05:53:20,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:21,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:21,075 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:21,075 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:21,075 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-28 05:53:21,085 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,086 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,086 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,086 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,086 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,086 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,087 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,089 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,089 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,089 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,090 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,090 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,091 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,091 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,091 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,092 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,092 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,092 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,092 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,093 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,093 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,093 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,094 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,094 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,099 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,100 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,100 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,100 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,100 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,103 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,103 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,104 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,104 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,104 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:21,116 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-28 05:53:21,116 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:21,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:21,117 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:21,117 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:21,117 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:21,117 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:21,117 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:21,117 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:21,123 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions [2019-12-28 05:53:21,613 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11042 states. [2019-12-28 05:53:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 11042 states. [2019-12-28 05:53:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:21,615 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:21,615 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] [2019-12-28 05:53:21,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:21,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:21,616 INFO L82 PathProgramCache]: Analyzing trace with hash -174661924, now seen corresponding path program 1 times [2019-12-28 05:53:21,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:21,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976831987] [2019-12-28 05:53:21,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:21,642 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 05:53:21,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976831987] [2019-12-28 05:53:21,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:21,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-28 05:53:21,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [746776505] [2019-12-28 05:53:21,644 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:21,646 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:21,648 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:21,648 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:21,648 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:21,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-28 05:53:21,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:21,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-28 05:53:21,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-28 05:53:21,650 INFO L87 Difference]: Start difference. First operand 11042 states. Second operand 2 states. [2019-12-28 05:53:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:21,764 INFO L93 Difference]: Finished difference Result 11042 states and 35032 transitions. [2019-12-28 05:53:21,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-28 05:53:21,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-12-28 05:53:21,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:21,838 INFO L225 Difference]: With dead ends: 11042 [2019-12-28 05:53:21,838 INFO L226 Difference]: Without dead ends: 8982 [2019-12-28 05:53:21,839 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 [2019-12-28 05:53:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8982 states. [2019-12-28 05:53:22,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8982 to 8982. [2019-12-28 05:53:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8982 states. [2019-12-28 05:53:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 28562 transitions. [2019-12-28 05:53:22,223 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 28562 transitions. Word has length 29 [2019-12-28 05:53:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:22,224 INFO L462 AbstractCegarLoop]: Abstraction has 8982 states and 28562 transitions. [2019-12-28 05:53:22,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-28 05:53:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 28562 transitions. [2019-12-28 05:53:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:22,226 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:22,227 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] [2019-12-28 05:53:22,227 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:22,228 INFO L82 PathProgramCache]: Analyzing trace with hash 544528701, now seen corresponding path program 1 times [2019-12-28 05:53:22,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:22,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205232715] [2019-12-28 05:53:22,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:22,325 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 05:53:22,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205232715] [2019-12-28 05:53:22,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:22,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:53:22,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [506627247] [2019-12-28 05:53:22,327 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:22,329 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:22,331 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:22,331 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:22,332 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:22,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:53:22,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:22,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:53:22,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:53:22,334 INFO L87 Difference]: Start difference. First operand 8982 states and 28562 transitions. Second operand 5 states. [2019-12-28 05:53:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:22,473 INFO L93 Difference]: Finished difference Result 11383 states and 36108 transitions. [2019-12-28 05:53:22,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:53:22,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-28 05:53:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:22,656 INFO L225 Difference]: With dead ends: 11383 [2019-12-28 05:53:22,656 INFO L226 Difference]: Without dead ends: 10011 [2019-12-28 05:53:22,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:53:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2019-12-28 05:53:22,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 9325. [2019-12-28 05:53:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9325 states. [2019-12-28 05:53:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9325 states to 9325 states and 29640 transitions. [2019-12-28 05:53:22,954 INFO L78 Accepts]: Start accepts. Automaton has 9325 states and 29640 transitions. Word has length 29 [2019-12-28 05:53:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:22,955 INFO L462 AbstractCegarLoop]: Abstraction has 9325 states and 29640 transitions. [2019-12-28 05:53:22,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:53:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 9325 states and 29640 transitions. [2019-12-28 05:53:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:53:22,956 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:22,957 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, 1, 1] [2019-12-28 05:53:22,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash -669746953, now seen corresponding path program 1 times [2019-12-28 05:53:22,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:22,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532025461] [2019-12-28 05:53:22,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:23,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532025461] [2019-12-28 05:53:23,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078805546] [2019-12-28 05:53:23,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:53:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:23,194 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-28 05:53:23,201 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-28 05:53:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-28 05:53:23,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-28 05:53:23,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-12-28 05:53:23,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1088063032] [2019-12-28 05:53:23,277 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:23,285 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:23,288 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:53:23,289 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:23,289 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:23,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:53:23,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:23,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:53:23,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:23,290 INFO L87 Difference]: Start difference. First operand 9325 states and 29640 transitions. Second operand 4 states. [2019-12-28 05:53:23,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:23,392 INFO L93 Difference]: Finished difference Result 6668 states and 19297 transitions. [2019-12-28 05:53:23,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-28 05:53:23,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-28 05:53:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:23,414 INFO L225 Difference]: With dead ends: 6668 [2019-12-28 05:53:23,415 INFO L226 Difference]: Without dead ends: 6668 [2019-12-28 05:53:23,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:23,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6668 states. [2019-12-28 05:53:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6668 to 5910. [2019-12-28 05:53:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5910 states. [2019-12-28 05:53:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 17433 transitions. [2019-12-28 05:53:24,094 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 17433 transitions. Word has length 36 [2019-12-28 05:53:24,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:24,094 INFO L462 AbstractCegarLoop]: Abstraction has 5910 states and 17433 transitions. [2019-12-28 05:53:24,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:53:24,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 17433 transitions. [2019-12-28 05:53:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:53:24,098 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:24,098 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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 05:53:24,305 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:53:24,305 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:24,306 INFO L82 PathProgramCache]: Analyzing trace with hash 400568101, now seen corresponding path program 1 times [2019-12-28 05:53:24,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:24,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711352287] [2019-12-28 05:53:24,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:24,365 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:24,365 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:24,365 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:24,365 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-28 05:53:24,376 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,376 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,376 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,377 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,377 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,377 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,377 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,378 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,379 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,379 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,379 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,380 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,380 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,380 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,380 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,380 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,381 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,382 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,382 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,382 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,382 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,382 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,383 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,383 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,383 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,383 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,388 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,388 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,390 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,390 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,391 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,391 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,391 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,393 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,393 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,393 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,393 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,393 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,395 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,396 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,396 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,396 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,396 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,402 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-28 05:53:24,402 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:24,402 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:24,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:24,403 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:24,403 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:24,403 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:24,403 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:24,403 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:24,407 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 87 transitions [2019-12-28 05:53:34,077 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 75794 states. [2019-12-28 05:53:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 75794 states. [2019-12-28 05:53:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:34,078 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:34,078 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] [2019-12-28 05:53:34,078 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:34,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:34,078 INFO L82 PathProgramCache]: Analyzing trace with hash 287651571, now seen corresponding path program 1 times [2019-12-28 05:53:34,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:34,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796790665] [2019-12-28 05:53:34,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:34,096 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 05:53:34,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796790665] [2019-12-28 05:53:34,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:34,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-28 05:53:34,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [265202461] [2019-12-28 05:53:34,098 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:34,099 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:34,101 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:34,101 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:34,101 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:34,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-28 05:53:34,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:34,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-28 05:53:34,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-28 05:53:34,103 INFO L87 Difference]: Start difference. First operand 75794 states. Second operand 2 states. [2019-12-28 05:53:34,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:34,595 INFO L93 Difference]: Finished difference Result 75794 states and 295945 transitions. [2019-12-28 05:53:34,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-28 05:53:34,595 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-12-28 05:53:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:36,807 INFO L225 Difference]: With dead ends: 75794 [2019-12-28 05:53:36,808 INFO L226 Difference]: Without dead ends: 61386 [2019-12-28 05:53:36,808 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 [2019-12-28 05:53:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61386 states. [2019-12-28 05:53:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61386 to 61386. [2019-12-28 05:53:38,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61386 states. [2019-12-28 05:53:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61386 states to 61386 states and 240377 transitions. [2019-12-28 05:53:38,755 INFO L78 Accepts]: Start accepts. Automaton has 61386 states and 240377 transitions. Word has length 29 [2019-12-28 05:53:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:38,755 INFO L462 AbstractCegarLoop]: Abstraction has 61386 states and 240377 transitions. [2019-12-28 05:53:38,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-28 05:53:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 61386 states and 240377 transitions. [2019-12-28 05:53:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:53:38,756 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:38,756 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] [2019-12-28 05:53:38,756 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:38,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1006842196, now seen corresponding path program 1 times [2019-12-28 05:53:38,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:38,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801679273] [2019-12-28 05:53:38,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:38,796 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 05:53:38,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801679273] [2019-12-28 05:53:38,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:38,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:53:38,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1114912809] [2019-12-28 05:53:38,797 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:38,799 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:38,801 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:53:38,801 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:38,802 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:38,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:53:38,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:38,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:53:38,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:53:38,806 INFO L87 Difference]: Start difference. First operand 61386 states and 240377 transitions. Second operand 5 states. [2019-12-28 05:53:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:41,358 INFO L93 Difference]: Finished difference Result 78193 states and 305204 transitions. [2019-12-28 05:53:41,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:53:41,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-28 05:53:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:41,624 INFO L225 Difference]: With dead ends: 78193 [2019-12-28 05:53:41,625 INFO L226 Difference]: Without dead ends: 68589 [2019-12-28 05:53:41,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:53:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68589 states. [2019-12-28 05:53:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68589 to 63787. [2019-12-28 05:53:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63787 states. [2019-12-28 05:53:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63787 states to 63787 states and 249638 transitions. [2019-12-28 05:53:46,467 INFO L78 Accepts]: Start accepts. Automaton has 63787 states and 249638 transitions. Word has length 29 [2019-12-28 05:53:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:46,468 INFO L462 AbstractCegarLoop]: Abstraction has 63787 states and 249638 transitions. [2019-12-28 05:53:46,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:53:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 63787 states and 249638 transitions. [2019-12-28 05:53:46,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:53:46,469 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:46,469 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, 1, 1] [2019-12-28 05:53:46,469 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:46,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1860909897, now seen corresponding path program 1 times [2019-12-28 05:53:46,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:46,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667251728] [2019-12-28 05:53:46,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:46,529 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667251728] [2019-12-28 05:53:46,529 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173332799] [2019-12-28 05:53:46,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:53:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:46,595 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-28 05:53:46,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-28 05:53:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-28 05:53:46,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-28 05:53:46,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-12-28 05:53:46,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1955561496] [2019-12-28 05:53:46,640 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:46,644 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:46,648 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:53:46,648 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:46,648 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:46,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:53:46,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:46,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:53:46,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:46,650 INFO L87 Difference]: Start difference. First operand 63787 states and 249638 transitions. Second operand 4 states. [2019-12-28 05:53:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:47,023 INFO L93 Difference]: Finished difference Result 49712 states and 180094 transitions. [2019-12-28 05:53:47,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-28 05:53:47,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-28 05:53:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:47,194 INFO L225 Difference]: With dead ends: 49712 [2019-12-28 05:53:47,195 INFO L226 Difference]: Without dead ends: 49712 [2019-12-28 05:53:47,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49712 states. [2019-12-28 05:53:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49712 to 43308. [2019-12-28 05:53:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43308 states. [2019-12-28 05:53:48,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43308 states to 43308 states and 159347 transitions. [2019-12-28 05:53:48,797 INFO L78 Accepts]: Start accepts. Automaton has 43308 states and 159347 transitions. Word has length 36 [2019-12-28 05:53:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:48,797 INFO L462 AbstractCegarLoop]: Abstraction has 43308 states and 159347 transitions. [2019-12-28 05:53:48,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:53:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 43308 states and 159347 transitions. [2019-12-28 05:53:48,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-28 05:53:48,809 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:48,809 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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 05:53:49,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:53:49,012 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:49,012 INFO L82 PathProgramCache]: Analyzing trace with hash -551869593, now seen corresponding path program 1 times [2019-12-28 05:53:49,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:49,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322417767] [2019-12-28 05:53:49,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:49,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:49,091 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:49,092 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:49,092 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-28 05:53:49,106 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,106 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,106 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,107 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,108 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,109 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,110 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,111 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,112 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,112 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,112 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,112 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,113 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,113 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,113 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,115 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,115 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,115 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,115 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,115 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,117 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,117 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,117 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,118 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,118 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,119 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,120 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,120 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,120 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,120 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,122 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,122 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,122 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,122 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,123 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:49,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-28 05:53:49,130 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:49,130 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:49,130 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:49,130 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:49,130 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:49,130 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:49,130 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:49,131 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:49,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 94 transitions Received shutdown request... [2019-12-28 05:57:36,344 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-28 05:57:36,348 WARN L227 ceAbstractionStarter]: Timeout [2019-12-28 05:57:36,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:57:36 BasicIcfg [2019-12-28 05:57:36,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:57:36,351 INFO L168 Benchmark]: Toolchain (without parser) took 257903.26 ms. Allocated memory was 137.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 100.8 MB in the beginning and 890.9 MB in the end (delta: -790.1 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,353 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.03 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 159.4 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,355 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,356 INFO L168 Benchmark]: RCFGBuilder took 435.84 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 133.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,356 INFO L168 Benchmark]: TraceAbstraction took 256619.41 ms. Allocated memory was 202.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 133.2 MB in the beginning and 890.9 MB in the end (delta: -757.8 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2019-12-28 05:57:36,360 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.03 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 159.4 MB in the end (delta: -59.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.84 ms. Allocated memory is still 202.4 MB. Free memory was 155.3 MB in the beginning and 133.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256619.41 ms. Allocated memory was 202.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 133.2 MB in the beginning and 890.9 MB in the end (delta: -757.8 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 95 places, 94 transitions. Already constructed 381813 states. Currently 16867 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Result: TIMEOUT, OverallTime: 227.2s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown