/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-ext/15_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:36:10,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:36:10,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:36:10,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:36:10,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:36:10,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:36:10,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:36:10,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:36:10,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:36:10,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:36:10,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:36:10,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:36:10,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:36:10,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:36:10,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:36:10,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:36:10,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:36:10,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:36:10,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:36:10,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:36:10,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:36:10,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:36:10,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:36:10,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:36:10,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 23:36:10,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:36:10,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:36:10,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:36:10,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:36:10,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:36:10,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:36:10,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:36:10,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:36:10,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:36:10,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:36:10,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:36:10,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-27 23:36:10,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:36:10,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:36:10,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:36:10,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:36:10,962 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:36:10,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:36:10,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:36:10,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:36:10,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:36:10,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:36:10,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:36:10,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:36:10,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:36:10,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:36:10,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:36:10,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:36:10,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:36:10,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:36:10,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:36:10,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:36:10,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:36:10,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:36:10,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:36:10,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:36:10,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:36:10,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:36:10,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:36:10,968 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:36:10,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 23:36:10,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:36:10,968 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:36:10,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:36:11,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:36:11,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:36:11,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:36:11,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:36:11,271 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:36:11,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-27 23:36:11,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a7ff6b2/d83d69cbcb4a47e29c354d3ce9439d97/FLAG6fb7a8636 [2019-12-27 23:36:11,868 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:36:11,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/15_dekker.i [2019-12-27 23:36:11,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a7ff6b2/d83d69cbcb4a47e29c354d3ce9439d97/FLAG6fb7a8636 [2019-12-27 23:36:12,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a7ff6b2/d83d69cbcb4a47e29c354d3ce9439d97 [2019-12-27 23:36:12,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:36:12,187 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:36:12,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:36:12,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:36:12,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:36:12,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cdc2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12, skipping insertion in model container [2019-12-27 23:36:12,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:36:12,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:36:12,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:36:12,793 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:36:12,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:36:12,908 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:36:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12 WrapperNode [2019-12-27 23:36:12,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:36:12,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:36:12,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:36:12,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:36:12,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:36:12,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:36:12,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:36:12,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:36:12,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (1/1) ... [2019-12-27 23:36:12,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:36:12,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:36:12,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:36:12,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:36:13,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (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 23:36:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 23:36:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 23:36:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:36:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:36:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:36:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:36:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:36:13,066 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 23:36:13,420 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:36:13,421 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-27 23:36:13,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:36:13 BoogieIcfgContainer [2019-12-27 23:36:13,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:36:13,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:36:13,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:36:13,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:36:13,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:36:12" (1/3) ... [2019-12-27 23:36:13,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c6d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:36:13, skipping insertion in model container [2019-12-27 23:36:13,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:36:12" (2/3) ... [2019-12-27 23:36:13,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c6d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:36:13, skipping insertion in model container [2019-12-27 23:36:13,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:36:13" (3/3) ... [2019-12-27 23:36:13,431 INFO L109 eAbstractionObserver]: Analyzing ICFG 15_dekker.i [2019-12-27 23:36:13,442 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:36:13,443 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:36:13,450 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 23:36:13,451 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:36:13,475 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,475 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,475 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,476 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,477 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,480 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,481 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,481 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,481 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:36:13,499 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 23:36:13,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:36:13,515 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:36:13,516 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:36:13,516 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:36:13,516 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:36:13,516 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:36:13,516 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:36:13,517 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:36:13,527 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 65 transitions [2019-12-27 23:36:13,559 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 428 states. [2019-12-27 23:36:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2019-12-27 23:36:13,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 23:36:13,571 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:13,572 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:13,573 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:13,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:13,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2048152700, now seen corresponding path program 1 times [2019-12-27 23:36:13,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:13,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371809848] [2019-12-27 23:36:13,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:13,759 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 23:36:13,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371809848] [2019-12-27 23:36:13,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:13,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 23:36:13,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [214659205] [2019-12-27 23:36:13,763 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:13,769 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:13,788 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 23:36:13,789 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:13,795 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:13,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 23:36:13,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:13,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 23:36:13,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 23:36:13,814 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 2 states. [2019-12-27 23:36:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:13,855 INFO L93 Difference]: Finished difference Result 428 states and 928 transitions. [2019-12-27 23:36:13,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 23:36:13,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-27 23:36:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:13,889 INFO L225 Difference]: With dead ends: 428 [2019-12-27 23:36:13,889 INFO L226 Difference]: Without dead ends: 373 [2019-12-27 23:36:13,892 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 23:36:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-12-27 23:36:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-12-27 23:36:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-12-27 23:36:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 818 transitions. [2019-12-27 23:36:13,963 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 818 transitions. Word has length 18 [2019-12-27 23:36:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:13,964 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 818 transitions. [2019-12-27 23:36:13,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 23:36:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 818 transitions. [2019-12-27 23:36:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 23:36:13,965 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:13,966 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:36:13,966 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:13,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash -2048122909, now seen corresponding path program 1 times [2019-12-27 23:36:13,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:13,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228692667] [2019-12-27 23:36:13,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:14,082 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 23:36:14,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228692667] [2019-12-27 23:36:14,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:14,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:14,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1552065394] [2019-12-27 23:36:14,084 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:14,085 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:14,087 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 23:36:14,087 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:14,087 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:14,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:14,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:14,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:14,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:14,090 INFO L87 Difference]: Start difference. First operand 373 states and 818 transitions. Second operand 3 states. [2019-12-27 23:36:14,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:14,127 INFO L93 Difference]: Finished difference Result 378 states and 801 transitions. [2019-12-27 23:36:14,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:14,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-27 23:36:14,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:14,131 INFO L225 Difference]: With dead ends: 378 [2019-12-27 23:36:14,132 INFO L226 Difference]: Without dead ends: 279 [2019-12-27 23:36:14,133 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 23:36:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-12-27 23:36:14,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 264. [2019-12-27 23:36:14,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-27 23:36:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 560 transitions. [2019-12-27 23:36:14,164 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 560 transitions. Word has length 18 [2019-12-27 23:36:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:14,165 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 560 transitions. [2019-12-27 23:36:14,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 560 transitions. [2019-12-27 23:36:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 23:36:14,167 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:14,167 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 23:36:14,168 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:14,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:14,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1981881724, now seen corresponding path program 1 times [2019-12-27 23:36:14,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:14,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300596209] [2019-12-27 23:36:14,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:14,222 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 23:36:14,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300596209] [2019-12-27 23:36:14,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:14,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:14,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [708480736] [2019-12-27 23:36:14,224 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:14,225 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:14,242 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 23 states and 22 transitions. [2019-12-27 23:36:14,243 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:14,243 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:36:14,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:14,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:14,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:14,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:14,245 INFO L87 Difference]: Start difference. First operand 264 states and 560 transitions. Second operand 3 states. [2019-12-27 23:36:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:14,268 INFO L93 Difference]: Finished difference Result 247 states and 513 transitions. [2019-12-27 23:36:14,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:14,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 23:36:14,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:14,271 INFO L225 Difference]: With dead ends: 247 [2019-12-27 23:36:14,271 INFO L226 Difference]: Without dead ends: 182 [2019-12-27 23:36:14,271 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 23:36:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-27 23:36:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2019-12-27 23:36:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-27 23:36:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 374 transitions. [2019-12-27 23:36:14,282 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 374 transitions. Word has length 22 [2019-12-27 23:36:14,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:14,283 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 374 transitions. [2019-12-27 23:36:14,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 374 transitions. [2019-12-27 23:36:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-27 23:36:14,285 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:14,285 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 23:36:14,285 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:14,285 INFO L82 PathProgramCache]: Analyzing trace with hash -692445400, now seen corresponding path program 1 times [2019-12-27 23:36:14,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:14,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750583609] [2019-12-27 23:36:14,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:14,353 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 23:36:14,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750583609] [2019-12-27 23:36:14,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:14,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:14,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [932973276] [2019-12-27 23:36:14,355 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:14,357 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:14,363 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 50 states and 71 transitions. [2019-12-27 23:36:14,363 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:14,375 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-27 23:36:14,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:14,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:14,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:14,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:14,376 INFO L87 Difference]: Start difference. First operand 182 states and 374 transitions. Second operand 3 states. [2019-12-27 23:36:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:14,393 INFO L93 Difference]: Finished difference Result 182 states and 369 transitions. [2019-12-27 23:36:14,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:14,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-27 23:36:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:14,396 INFO L225 Difference]: With dead ends: 182 [2019-12-27 23:36:14,396 INFO L226 Difference]: Without dead ends: 160 [2019-12-27 23:36:14,396 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 23:36:14,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-12-27 23:36:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-12-27 23:36:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-27 23:36:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 321 transitions. [2019-12-27 23:36:14,404 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 321 transitions. Word has length 26 [2019-12-27 23:36:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:14,404 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 321 transitions. [2019-12-27 23:36:14,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 321 transitions. [2019-12-27 23:36:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-27 23:36:14,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:36:14,410 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 23:36:14,410 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:36:14,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:36:14,410 INFO L82 PathProgramCache]: Analyzing trace with hash 594735373, now seen corresponding path program 1 times [2019-12-27 23:36:14,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:36:14,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166684715] [2019-12-27 23:36:14,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:36:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:36:14,479 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 23:36:14,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166684715] [2019-12-27 23:36:14,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:36:14,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:36:14,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1568671933] [2019-12-27 23:36:14,480 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:36:14,482 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:36:14,485 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 47 transitions. [2019-12-27 23:36:14,485 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:36:14,488 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 23:36:14,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:36:14,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:36:14,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:36:14,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:36:14,489 INFO L87 Difference]: Start difference. First operand 160 states and 321 transitions. Second operand 3 states. [2019-12-27 23:36:14,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:36:14,501 INFO L93 Difference]: Finished difference Result 103 states and 231 transitions. [2019-12-27 23:36:14,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:36:14,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-27 23:36:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:36:14,503 INFO L225 Difference]: With dead ends: 103 [2019-12-27 23:36:14,503 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 23:36:14,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:36:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 23:36:14,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 23:36:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 23:36:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 23:36:14,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-12-27 23:36:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:36:14,505 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 23:36:14,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:36:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 23:36:14,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 23:36:14,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:36:14 BasicIcfg [2019-12-27 23:36:14,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:36:14,513 INFO L168 Benchmark]: Toolchain (without parser) took 2325.68 ms. Allocated memory was 145.8 MB in the beginning and 234.9 MB in the end (delta: 89.1 MB). Free memory was 102.4 MB in the beginning and 173.8 MB in the end (delta: -71.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,514 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.58 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 163.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.31 ms. Allocated memory is still 202.9 MB. Free memory was 163.1 MB in the beginning and 160.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,517 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 202.9 MB. Free memory was 160.9 MB in the beginning and 159.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,518 INFO L168 Benchmark]: RCFGBuilder took 423.93 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 139.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-27 23:36:14,519 INFO L168 Benchmark]: TraceAbstraction took 1086.98 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 139.2 MB in the beginning and 173.8 MB in the end (delta: -34.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 23:36:14,523 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.58 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 163.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.31 ms. Allocated memory is still 202.9 MB. Free memory was 163.1 MB in the beginning and 160.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 202.9 MB. Free memory was 160.9 MB in the beginning and 159.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.93 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 139.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1086.98 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 139.2 MB in the beginning and 173.8 MB in the end (delta: -34.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 701]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 2 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 312 SDtfs, 111 SDslu, 129 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 2745 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...