/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/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:47:08,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:47:08,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:47:08,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:47:08,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:47:08,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:47:08,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:47:08,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:47:08,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:47:08,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:47:08,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:47:08,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:47:08,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:47:08,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:47:08,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:47:08,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:47:08,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:47:08,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:47:08,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:47:08,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:47:08,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:47:08,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:47:08,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:47:08,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:47:08,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:47:08,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:47:08,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:47:08,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:47:08,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:47:08,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:47:08,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:47:08,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:47:08,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:47:08,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:47:08,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:47:08,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:47:08,992 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 08:47:09,024 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:47:09,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:47:09,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:47:09,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:47:09,029 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:47:09,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:47:09,030 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:47:09,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:47:09,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:47:09,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:47:09,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:47:09,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:47:09,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:47:09,032 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:47:09,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:47:09,032 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:47:09,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:47:09,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:47:09,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:47:09,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:47:09,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:47:09,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:09,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:47:09,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:47:09,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:47:09,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:47:09,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:47:09,035 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:47:09,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:47:09,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:47:09,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:47:09,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:47:09,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:47:09,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:47:09,328 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:47:09,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-27 08:47:09,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46e33364/52506715a7934de18be9f5c104f762ec/FLAGa23db4d9e [2019-12-27 08:47:09,896 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:47:09,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-27 08:47:09,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46e33364/52506715a7934de18be9f5c104f762ec/FLAGa23db4d9e [2019-12-27 08:47:10,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46e33364/52506715a7934de18be9f5c104f762ec [2019-12-27 08:47:10,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:47:10,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:47:10,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:10,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:47:10,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:47:10,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51038009 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 08:47:10,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:47:10,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:47:10,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:10,740 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:47:10,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:10,900 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:47:10,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10 WrapperNode [2019-12-27 08:47:10,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:10,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:10,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:47:10,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:47:10,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:10,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:47:10,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:47:10,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:47:10,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:10,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:11,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:11,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:11,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (1/1) ... [2019-12-27 08:47:11,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:47:11,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:47:11,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:47:11,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:47:11,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (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 08:47:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:47:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:47:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:47:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:47:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:47:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:47:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:47:11,084 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 08:47:11,428 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:47:11,429 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 08:47:11,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:11 BoogieIcfgContainer [2019-12-27 08:47:11,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:47:11,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:47:11,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:47:11,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:47:11,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:47:10" (1/3) ... [2019-12-27 08:47:11,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876767b 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 08:47:11,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:10" (2/3) ... [2019-12-27 08:47:11,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876767b 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 08:47:11,437 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 08:47:11,438 INFO L109 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2019-12-27 08:47:11,448 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:47:11,449 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:47:11,458 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:47:11,459 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:47:11,482 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,482 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,483 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,483 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,484 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,484 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,488 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:11,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:47:11,526 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:47:11,526 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:47:11,526 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:47:11,526 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:47:11,526 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:47:11,527 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:47:11,527 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:47:11,527 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:47:11,536 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 51 transitions [2019-12-27 08:47:11,560 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 276 states. [2019-12-27 08:47:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2019-12-27 08:47:11,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 08:47:11,570 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:11,570 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:11,571 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:11,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:11,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1983207058, now seen corresponding path program 1 times [2019-12-27 08:47:11,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:11,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323843256] [2019-12-27 08:47:11,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:11,762 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 08:47:11,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323843256] [2019-12-27 08:47:11,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:11,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:47:11,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281176321] [2019-12-27 08:47:11,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:47:11,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:11,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:47:11,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:47:11,794 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 2 states. [2019-12-27 08:47:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:11,845 INFO L93 Difference]: Finished difference Result 276 states and 540 transitions. [2019-12-27 08:47:11,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:47:11,847 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-12-27 08:47:11,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:11,864 INFO L225 Difference]: With dead ends: 276 [2019-12-27 08:47:11,865 INFO L226 Difference]: Without dead ends: 236 [2019-12-27 08:47:11,866 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 08:47:11,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-27 08:47:11,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-12-27 08:47:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-27 08:47:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 460 transitions. [2019-12-27 08:47:11,935 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 460 transitions. Word has length 19 [2019-12-27 08:47:11,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:11,936 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 460 transitions. [2019-12-27 08:47:11,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:47:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 460 transitions. [2019-12-27 08:47:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 08:47:11,937 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:11,938 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:11,938 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:11,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1983177267, now seen corresponding path program 1 times [2019-12-27 08:47:11,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:11,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240421506] [2019-12-27 08:47:11,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,026 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 08:47:12,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240421506] [2019-12-27 08:47:12,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:12,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419528850] [2019-12-27 08:47:12,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:12,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:12,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,031 INFO L87 Difference]: Start difference. First operand 236 states and 460 transitions. Second operand 3 states. [2019-12-27 08:47:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,068 INFO L93 Difference]: Finished difference Result 243 states and 453 transitions. [2019-12-27 08:47:12,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:12,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-27 08:47:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,074 INFO L225 Difference]: With dead ends: 243 [2019-12-27 08:47:12,074 INFO L226 Difference]: Without dead ends: 183 [2019-12-27 08:47:12,075 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 08:47:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-12-27 08:47:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2019-12-27 08:47:12,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-12-27 08:47:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 317 transitions. [2019-12-27 08:47:12,112 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 317 transitions. Word has length 19 [2019-12-27 08:47:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,113 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 317 transitions. [2019-12-27 08:47:12,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 317 transitions. [2019-12-27 08:47:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-27 08:47:12,115 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,115 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] [2019-12-27 08:47:12,115 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1840311886, now seen corresponding path program 1 times [2019-12-27 08:47:12,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835245898] [2019-12-27 08:47:12,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,227 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 08:47:12,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835245898] [2019-12-27 08:47:12,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:12,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203520914] [2019-12-27 08:47:12,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:12,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:12,232 INFO L87 Difference]: Start difference. First operand 171 states and 317 transitions. Second operand 3 states. [2019-12-27 08:47:12,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,253 INFO L93 Difference]: Finished difference Result 159 states and 285 transitions. [2019-12-27 08:47:12,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:12,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-27 08:47:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,255 INFO L225 Difference]: With dead ends: 159 [2019-12-27 08:47:12,255 INFO L226 Difference]: Without dead ends: 119 [2019-12-27 08:47:12,256 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 08:47:12,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-12-27 08:47:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-12-27 08:47:12,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-12-27 08:47:12,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 206 transitions. [2019-12-27 08:47:12,266 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 206 transitions. Word has length 23 [2019-12-27 08:47:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,267 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 206 transitions. [2019-12-27 08:47:12,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 206 transitions. [2019-12-27 08:47:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-27 08:47:12,269 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,269 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] [2019-12-27 08:47:12,269 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1244669700, now seen corresponding path program 1 times [2019-12-27 08:47:12,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428116909] [2019-12-27 08:47:12,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,385 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 08:47:12,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428116909] [2019-12-27 08:47:12,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:47:12,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671122336] [2019-12-27 08:47:12,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:47:12,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:47:12,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:12,389 INFO L87 Difference]: Start difference. First operand 119 states and 206 transitions. Second operand 4 states. [2019-12-27 08:47:12,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,427 INFO L93 Difference]: Finished difference Result 125 states and 217 transitions. [2019-12-27 08:47:12,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:47:12,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-12-27 08:47:12,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,429 INFO L225 Difference]: With dead ends: 125 [2019-12-27 08:47:12,429 INFO L226 Difference]: Without dead ends: 101 [2019-12-27 08:47:12,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-27 08:47:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-12-27 08:47:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-12-27 08:47:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 160 transitions. [2019-12-27 08:47:12,437 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 160 transitions. Word has length 28 [2019-12-27 08:47:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,438 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 160 transitions. [2019-12-27 08:47:12,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:47:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 160 transitions. [2019-12-27 08:47:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-27 08:47:12,439 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:12,440 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] [2019-12-27 08:47:12,440 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:12,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2129920564, now seen corresponding path program 2 times [2019-12-27 08:47:12,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:12,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723562097] [2019-12-27 08:47:12,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:12,493 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 08:47:12,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723562097] [2019-12-27 08:47:12,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:12,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:47:12,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484221000] [2019-12-27 08:47:12,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:47:12,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:12,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:47:12,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:12,495 INFO L87 Difference]: Start difference. First operand 101 states and 160 transitions. Second operand 4 states. [2019-12-27 08:47:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:12,522 INFO L93 Difference]: Finished difference Result 48 states and 76 transitions. [2019-12-27 08:47:12,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:47:12,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-12-27 08:47:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:12,523 INFO L225 Difference]: With dead ends: 48 [2019-12-27 08:47:12,523 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:47:12,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:12,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:47:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:47:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:47:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:47:12,524 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-12-27 08:47:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:12,525 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:47:12,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:47:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:47:12,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:47:12,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:47:12 BasicIcfg [2019-12-27 08:47:12,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:47:12,536 INFO L168 Benchmark]: Toolchain (without parser) took 2343.48 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 102.4 MB in the beginning and 186.3 MB in the end (delta: -83.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,537 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.85 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 161.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.54 ms. Allocated memory is still 202.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,540 INFO L168 Benchmark]: Boogie Preprocessor took 34.18 ms. Allocated memory is still 202.9 MB. Free memory was 159.0 MB in the beginning and 157.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,541 INFO L168 Benchmark]: RCFGBuilder took 418.74 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 139.2 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:12,542 INFO L168 Benchmark]: TraceAbstraction took 1099.62 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 138.5 MB in the beginning and 186.3 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:47:12,546 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.85 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 161.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 74.54 ms. Allocated memory is still 202.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.18 ms. Allocated memory is still 202.9 MB. Free memory was 159.0 MB in the beginning and 157.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 418.74 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 139.2 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1099.62 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 138.5 MB in the beginning and 186.3 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: 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, 46 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 88 SDslu, 120 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...