/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:47:09,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:47:09,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:47:09,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:47:09,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:47:09,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:47:09,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:47:09,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:47:09,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:47:09,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:47:09,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:47:09,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:47:09,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:47:09,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:47:09,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:47:09,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:47:09,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:47:09,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:47:09,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:47:09,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:47:09,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:47:09,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:47:09,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:47:09,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:47:09,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:47:09,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:47:09,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:47:09,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:47:09,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:47:09,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:47:09,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:47:09,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:47:09,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:47:09,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:47:09,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:47:09,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:47:09,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 08:47:09,357 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:47:09,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:47:09,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:47:09,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:47:09,359 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:47:09,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:47:09,360 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:47:09,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:47:09,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:47:09,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:47:09,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:47:09,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:47:09,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:47:09,361 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:47:09,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:47:09,361 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:47:09,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:47:09,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:47:09,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:47:09,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:47:09,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:47:09,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:09,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:47:09,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:47:09,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:47:09,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:47:09,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:47:09,364 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:47:09,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:47:09,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:47:09,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:47:09,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:47:09,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:47:09,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:47:09,685 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:47:09,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2019-12-27 08:47:09,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4cf6157/602d527b2b40443c8b08b614684f5c11/FLAGf29db79cc [2019-12-27 08:47:10,379 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:47:10,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2019-12-27 08:47:10,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4cf6157/602d527b2b40443c8b08b614684f5c11/FLAGf29db79cc [2019-12-27 08:47:10,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4cf6157/602d527b2b40443c8b08b614684f5c11 [2019-12-27 08:47:10,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:47:10,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:47:10,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:10,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:47:10,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:47:10,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7810f097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10, skipping insertion in model container [2019-12-27 08:47:10,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:47:10,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:47:11,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:11,217 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:47:11,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:11,370 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:47:11,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11 WrapperNode [2019-12-27 08:47:11,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:11,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:11,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:47:11,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:47:11,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:11,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:47:11,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:47:11,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:47:11,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (1/1) ... [2019-12-27 08:47:11,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:47:11,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:47:11,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:47:11,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:47:11,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (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 [2019-12-27 08:47:11,530 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:47:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:47:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:47:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:47:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:47:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:47:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:47:11,534 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:47:11,914 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:47:11,914 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-27 08:47:11,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:11 BoogieIcfgContainer [2019-12-27 08:47:11,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:47:11,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:47:11,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:47:11,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:47:11,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:47:10" (1/3) ... [2019-12-27 08:47:11,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f3106e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:11, skipping insertion in model container [2019-12-27 08:47:11,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:11" (2/3) ... [2019-12-27 08:47:11,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f3106e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:11, skipping insertion in model container [2019-12-27 08:47:11,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:11" (3/3) ... [2019-12-27 08:47:11,924 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2019-12-27 08:47:11,934 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:47:11,934 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:47:11,941 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:47:11,942 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:47:11,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,969 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,970 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,978 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,978 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,999 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:47:12,018 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:47:12,018 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:47:12,018 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:47:12,018 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:47:12,018 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:47:12,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:47:12,019 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:47:12,019 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:47:12,031 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 82 transitions [2019-12-27 08:47:12,085 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 562 states. [2019-12-27 08:47:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states. [2019-12-27 08:47:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:12,104 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,105 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] [2019-12-27 08:47:12,106 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1601843613, now seen corresponding path program 1 times [2019-12-27 08:47:12,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364996964] [2019-12-27 08:47:12,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:12,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364996964] [2019-12-27 08:47:12,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:47:12,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082776116] [2019-12-27 08:47:12,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:47:12,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:47:12,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:47:12,362 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 2 states. [2019-12-27 08:47:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,392 INFO L93 Difference]: Finished difference Result 331 states and 831 transitions. [2019-12-27 08:47:12,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:47:12,394 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-12-27 08:47:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,412 INFO L225 Difference]: With dead ends: 331 [2019-12-27 08:47:12,413 INFO L226 Difference]: Without dead ends: 331 [2019-12-27 08:47:12,414 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 [2019-12-27 08:47:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-12-27 08:47:12,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2019-12-27 08:47:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2019-12-27 08:47:12,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 831 transitions. [2019-12-27 08:47:12,491 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 831 transitions. Word has length 22 [2019-12-27 08:47:12,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,492 INFO L462 AbstractCegarLoop]: Abstraction has 331 states and 831 transitions. [2019-12-27 08:47:12,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:47:12,492 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 831 transitions. [2019-12-27 08:47:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:12,494 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,495 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] [2019-12-27 08:47:12,495 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,496 INFO L82 PathProgramCache]: Analyzing trace with hash -950283557, now seen corresponding path program 1 times [2019-12-27 08:47:12,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925218029] [2019-12-27 08:47:12,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:12,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925218029] [2019-12-27 08:47:12,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:12,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139675199] [2019-12-27 08:47:12,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:12,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:12,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,595 INFO L87 Difference]: Start difference. First operand 331 states and 831 transitions. Second operand 3 states. [2019-12-27 08:47:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,662 INFO L93 Difference]: Finished difference Result 526 states and 1352 transitions. [2019-12-27 08:47:12,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:12,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 08:47:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,674 INFO L225 Difference]: With dead ends: 526 [2019-12-27 08:47:12,674 INFO L226 Difference]: Without dead ends: 526 [2019-12-27 08:47:12,675 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-12-27 08:47:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 348. [2019-12-27 08:47:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-27 08:47:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 874 transitions. [2019-12-27 08:47:12,711 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 874 transitions. Word has length 22 [2019-12-27 08:47:12,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,712 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 874 transitions. [2019-12-27 08:47:12,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 874 transitions. [2019-12-27 08:47:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-27 08:47:12,714 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,715 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] [2019-12-27 08:47:12,715 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,716 INFO L82 PathProgramCache]: Analyzing trace with hash -260491045, now seen corresponding path program 1 times [2019-12-27 08:47:12,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596994727] [2019-12-27 08:47:12,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:12,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596994727] [2019-12-27 08:47:12,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:12,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659344885] [2019-12-27 08:47:12,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:12,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:12,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,800 INFO L87 Difference]: Start difference. First operand 348 states and 874 transitions. Second operand 3 states. [2019-12-27 08:47:12,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,866 INFO L93 Difference]: Finished difference Result 494 states and 1265 transitions. [2019-12-27 08:47:12,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:12,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-27 08:47:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,873 INFO L225 Difference]: With dead ends: 494 [2019-12-27 08:47:12,874 INFO L226 Difference]: Without dead ends: 494 [2019-12-27 08:47:12,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-12-27 08:47:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 340. [2019-12-27 08:47:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-27 08:47:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 833 transitions. [2019-12-27 08:47:12,914 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 833 transitions. Word has length 26 [2019-12-27 08:47:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,914 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 833 transitions. [2019-12-27 08:47:12,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 833 transitions. [2019-12-27 08:47:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 08:47:12,920 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,920 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] [2019-12-27 08:47:12,921 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,921 INFO L82 PathProgramCache]: Analyzing trace with hash 111329482, now seen corresponding path program 1 times [2019-12-27 08:47:12,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688881035] [2019-12-27 08:47:12,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:12,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688881035] [2019-12-27 08:47:12,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:12,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557594238] [2019-12-27 08:47:12,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:12,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:13,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,000 INFO L87 Difference]: Start difference. First operand 340 states and 833 transitions. Second operand 3 states. [2019-12-27 08:47:13,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:13,079 INFO L93 Difference]: Finished difference Result 345 states and 816 transitions. [2019-12-27 08:47:13,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:13,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-27 08:47:13,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:13,082 INFO L225 Difference]: With dead ends: 345 [2019-12-27 08:47:13,082 INFO L226 Difference]: Without dead ends: 345 [2019-12-27 08:47:13,083 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-12-27 08:47:13,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-12-27 08:47:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-12-27 08:47:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 816 transitions. [2019-12-27 08:47:13,096 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 816 transitions. Word has length 35 [2019-12-27 08:47:13,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:13,096 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 816 transitions. [2019-12-27 08:47:13,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:13,097 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 816 transitions. [2019-12-27 08:47:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 08:47:13,099 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:13,099 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] [2019-12-27 08:47:13,099 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:13,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2105273623, now seen corresponding path program 1 times [2019-12-27 08:47:13,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:13,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575836492] [2019-12-27 08:47:13,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:13,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575836492] [2019-12-27 08:47:13,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:13,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:13,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851699131] [2019-12-27 08:47:13,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:13,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:13,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:13,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,162 INFO L87 Difference]: Start difference. First operand 345 states and 816 transitions. Second operand 3 states. [2019-12-27 08:47:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:13,224 INFO L93 Difference]: Finished difference Result 372 states and 867 transitions. [2019-12-27 08:47:13,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:13,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-27 08:47:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:13,229 INFO L225 Difference]: With dead ends: 372 [2019-12-27 08:47:13,229 INFO L226 Difference]: Without dead ends: 372 [2019-12-27 08:47:13,231 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-12-27 08:47:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 361. [2019-12-27 08:47:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-12-27 08:47:13,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 843 transitions. [2019-12-27 08:47:13,245 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 843 transitions. Word has length 35 [2019-12-27 08:47:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:13,246 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 843 transitions. [2019-12-27 08:47:13,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 843 transitions. [2019-12-27 08:47:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 08:47:13,249 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:13,249 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] [2019-12-27 08:47:13,250 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:13,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1753203533, now seen corresponding path program 2 times [2019-12-27 08:47:13,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:13,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579632594] [2019-12-27 08:47:13,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:13,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579632594] [2019-12-27 08:47:13,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:13,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:13,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619584666] [2019-12-27 08:47:13,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:13,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:13,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:13,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,337 INFO L87 Difference]: Start difference. First operand 361 states and 843 transitions. Second operand 3 states. [2019-12-27 08:47:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:13,393 INFO L93 Difference]: Finished difference Result 353 states and 811 transitions. [2019-12-27 08:47:13,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:13,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-27 08:47:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:13,396 INFO L225 Difference]: With dead ends: 353 [2019-12-27 08:47:13,396 INFO L226 Difference]: Without dead ends: 353 [2019-12-27 08:47:13,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-12-27 08:47:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2019-12-27 08:47:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-12-27 08:47:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 811 transitions. [2019-12-27 08:47:13,416 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 811 transitions. Word has length 35 [2019-12-27 08:47:13,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:13,423 INFO L462 AbstractCegarLoop]: Abstraction has 353 states and 811 transitions. [2019-12-27 08:47:13,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 811 transitions. [2019-12-27 08:47:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 08:47:13,427 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:13,427 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] [2019-12-27 08:47:13,427 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:13,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1963343129, now seen corresponding path program 3 times [2019-12-27 08:47:13,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:13,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042117177] [2019-12-27 08:47:13,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:13,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042117177] [2019-12-27 08:47:13,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:13,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:13,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068401987] [2019-12-27 08:47:13,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:13,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:13,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:13,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,501 INFO L87 Difference]: Start difference. First operand 353 states and 811 transitions. Second operand 3 states. [2019-12-27 08:47:13,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:13,547 INFO L93 Difference]: Finished difference Result 298 states and 681 transitions. [2019-12-27 08:47:13,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:13,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-27 08:47:13,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:13,548 INFO L225 Difference]: With dead ends: 298 [2019-12-27 08:47:13,548 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:47:13,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:47:13,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:47:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:47:13,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:47:13,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-27 08:47:13,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:13,550 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:47:13,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:13,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:47:13,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:47:13,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:47:13 BasicIcfg [2019-12-27 08:47:13,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:47:13,562 INFO L168 Benchmark]: Toolchain (without parser) took 2921.19 ms. Allocated memory was 135.8 MB in the beginning and 228.6 MB in the end (delta: 92.8 MB). Free memory was 99.0 MB in the beginning and 127.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,569 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.35 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 98.8 MB in the beginning and 158.3 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.58 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,574 INFO L168 Benchmark]: Boogie Preprocessor took 33.10 ms. Allocated memory is still 200.8 MB. Free memory was 156.2 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,574 INFO L168 Benchmark]: RCFGBuilder took 461.50 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 133.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,578 INFO L168 Benchmark]: TraceAbstraction took 1639.19 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 133.3 MB in the beginning and 127.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:13,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.35 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 98.8 MB in the beginning and 158.3 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.58 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.10 ms. Allocated memory is still 200.8 MB. Free memory was 156.2 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.50 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 133.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1639.19 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 133.3 MB in the beginning and 127.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 2 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 518 SDtfs, 192 SDslu, 223 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=562occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 343 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 7651 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...