/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 20:30:36,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 20:30:36,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 20:30:36,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 20:30:36,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 20:30:36,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 20:30:36,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 20:30:36,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 20:30:36,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 20:30:36,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 20:30:36,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 20:30:36,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 20:30:36,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 20:30:36,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 20:30:36,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 20:30:36,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 20:30:36,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 20:30:36,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 20:30:36,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 20:30:36,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 20:30:36,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 20:30:36,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 20:30:36,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 20:30:36,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 20:30:36,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 20:30:36,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 20:30:36,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 20:30:36,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 20:30:36,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 20:30:37,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 20:30:37,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 20:30:37,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 20:30:37,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 20:30:37,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 20:30:37,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 20:30:37,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 20:30:37,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-11 20:30:37,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 20:30:37,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 20:30:37,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 20:30:37,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 20:30:37,034 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 20:30:37,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 20:30:37,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 20:30:37,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 20:30:37,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 20:30:37,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 20:30:37,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 20:30:37,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 20:30:37,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 20:30:37,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 20:30:37,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 20:30:37,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 20:30:37,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 20:30:37,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 20:30:37,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 20:30:37,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 20:30:37,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 20:30:37,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:30:37,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 20:30:37,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 20:30:37,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 20:30:37,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 20:30:37,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 20:30:37,038 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 20:30:37,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 20:30:37,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 20:30:37,039 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 20:30:37,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 20:30:37,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 20:30:37,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 20:30:37,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 20:30:37,489 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 20:30:37,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-09-11 20:30:37,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9f5ebd2f/23af217ae42c419abb4dd4826af47ea6/FLAG186ce2815 [2020-09-11 20:30:38,154 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 20:30:38,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-09-11 20:30:38,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9f5ebd2f/23af217ae42c419abb4dd4826af47ea6/FLAG186ce2815 [2020-09-11 20:30:38,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9f5ebd2f/23af217ae42c419abb4dd4826af47ea6 [2020-09-11 20:30:38,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 20:30:38,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 20:30:38,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 20:30:38,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 20:30:38,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 20:30:38,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:30:38" (1/1) ... [2020-09-11 20:30:38,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a764e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:38, skipping insertion in model container [2020-09-11 20:30:38,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:30:38" (1/1) ... [2020-09-11 20:30:38,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 20:30:38,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 20:30:39,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:30:39,272 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 20:30:39,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:30:39,400 INFO L208 MainTranslator]: Completed translation [2020-09-11 20:30:39,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39 WrapperNode [2020-09-11 20:30:39,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 20:30:39,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 20:30:39,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 20:30:39,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 20:30:39,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 20:30:39,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 20:30:39,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 20:30:39,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 20:30:39,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... [2020-09-11 20:30:39,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 20:30:39,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 20:30:39,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 20:30:39,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 20:30:39,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 20:30:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-11 20:30:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-11 20:30:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 20:30:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 20:30:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 20:30:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 20:30:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 20:30:39,614 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 20:30:39,986 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 20:30:39,986 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-11 20:30:39,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:30:39 BoogieIcfgContainer [2020-09-11 20:30:39,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 20:30:39,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 20:30:39,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 20:30:39,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 20:30:39,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:30:38" (1/3) ... [2020-09-11 20:30:39,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21748792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:30:39, skipping insertion in model container [2020-09-11 20:30:39,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:39" (2/3) ... [2020-09-11 20:30:40,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21748792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:30:40, skipping insertion in model container [2020-09-11 20:30:40,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:30:39" (3/3) ... [2020-09-11 20:30:40,002 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-09-11 20:30:40,015 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 20:30:40,015 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 20:30:40,025 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 20:30:40,026 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 20:30:40,056 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,056 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,056 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,057 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,057 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,057 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:40,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 20:30:40,127 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 20:30:40,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 20:30:40,127 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 20:30:40,127 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 20:30:40,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 20:30:40,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 20:30:40,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 20:30:40,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 20:30:40,146 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-09-11 20:30:40,148 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-09-11 20:30:40,195 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-09-11 20:30:40,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 20:30:40,204 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-09-11 20:30:40,209 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-09-11 20:30:40,232 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-09-11 20:30:40,232 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 20:30:40,234 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-09-11 20:30:40,237 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2400 [2020-09-11 20:30:40,239 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 20:30:40,983 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4373 [2020-09-11 20:30:40,984 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2020-09-11 20:30:40,989 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-09-11 20:30:41,011 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-09-11 20:30:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-09-11 20:30:41,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 20:30:41,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:41,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:41,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-09-11 20:30:41,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:41,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433849512] [2020-09-11 20:30:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:41,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433849512] [2020-09-11 20:30:41,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:41,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:41,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1051960264] [2020-09-11 20:30:41,268 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:41,271 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:41,288 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-11 20:30:41,289 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:41,291 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:41,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 20:30:41,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 20:30:41,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 20:30:41,312 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-09-11 20:30:41,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:41,334 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-09-11 20:30:41,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 20:30:41,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-09-11 20:30:41,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:41,353 INFO L225 Difference]: With dead ends: 198 [2020-09-11 20:30:41,353 INFO L226 Difference]: Without dead ends: 198 [2020-09-11 20:30:41,355 INFO L675 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 [2020-09-11 20:30:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-11 20:30:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-11 20:30:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-11 20:30:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-09-11 20:30:41,427 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-09-11 20:30:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:41,428 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-09-11 20:30:41,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 20:30:41,428 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-09-11 20:30:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 20:30:41,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:41,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:41,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 20:30:41,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:41,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-09-11 20:30:41,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:41,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798219405] [2020-09-11 20:30:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:41,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798219405] [2020-09-11 20:30:41,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:41,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:41,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2111300287] [2020-09-11 20:30:41,527 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:41,528 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:41,529 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-11 20:30:41,530 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:41,530 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:41,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:41,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,533 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-09-11 20:30:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:41,593 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-09-11 20:30:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:41,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 20:30:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:41,599 INFO L225 Difference]: With dead ends: 362 [2020-09-11 20:30:41,599 INFO L226 Difference]: Without dead ends: 362 [2020-09-11 20:30:41,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-09-11 20:30:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-09-11 20:30:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-11 20:30:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-09-11 20:30:41,630 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-09-11 20:30:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:41,631 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-09-11 20:30:41,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-09-11 20:30:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 20:30:41,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:41,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:41,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 20:30:41,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:41,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-09-11 20:30:41,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:41,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244293627] [2020-09-11 20:30:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:41,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244293627] [2020-09-11 20:30:41,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:41,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:41,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1479167161] [2020-09-11 20:30:41,690 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:41,691 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:41,692 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-11 20:30:41,692 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:41,692 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:41,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:41,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:41,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:41,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,694 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-09-11 20:30:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:41,716 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-09-11 20:30:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:41,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 20:30:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:41,721 INFO L225 Difference]: With dead ends: 348 [2020-09-11 20:30:41,721 INFO L226 Difference]: Without dead ends: 348 [2020-09-11 20:30:41,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-11 20:30:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-09-11 20:30:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-11 20:30:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-09-11 20:30:41,742 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-09-11 20:30:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:41,742 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-09-11 20:30:41,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:41,742 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-09-11 20:30:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 20:30:41,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:41,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:41,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 20:30:41,745 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:41,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-09-11 20:30:41,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:41,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889112895] [2020-09-11 20:30:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:41,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889112895] [2020-09-11 20:30:41,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:41,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:30:41,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1456739349] [2020-09-11 20:30:41,860 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:41,862 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:41,865 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 48 transitions. [2020-09-11 20:30:41,865 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:41,888 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:41,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:41,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:41,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:41,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,890 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-09-11 20:30:41,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:41,935 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-09-11 20:30:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:41,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 20:30:41,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:41,938 INFO L225 Difference]: With dead ends: 220 [2020-09-11 20:30:41,938 INFO L226 Difference]: Without dead ends: 220 [2020-09-11 20:30:41,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-11 20:30:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-09-11 20:30:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-11 20:30:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-09-11 20:30:41,954 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-09-11 20:30:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:41,955 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-09-11 20:30:41,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-09-11 20:30:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 20:30:41,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:41,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:41,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 20:30:41,958 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:41,959 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-09-11 20:30:41,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:41,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858138084] [2020-09-11 20:30:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:42,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858138084] [2020-09-11 20:30:42,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:42,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:30:42,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [233168358] [2020-09-11 20:30:42,015 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:42,016 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:42,019 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-09-11 20:30:42,019 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:42,025 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:42,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:42,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:42,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:42,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,026 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-09-11 20:30:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:42,076 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-09-11 20:30:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:42,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 20:30:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:42,079 INFO L225 Difference]: With dead ends: 240 [2020-09-11 20:30:42,080 INFO L226 Difference]: Without dead ends: 240 [2020-09-11 20:30:42,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-09-11 20:30:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-09-11 20:30:42,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-11 20:30:42,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-09-11 20:30:42,092 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-09-11 20:30:42,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:42,092 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-09-11 20:30:42,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-09-11 20:30:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 20:30:42,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:42,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:42,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 20:30:42,096 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:42,097 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-09-11 20:30:42,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:42,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509295880] [2020-09-11 20:30:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:42,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509295880] [2020-09-11 20:30:42,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:42,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:30:42,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [974820618] [2020-09-11 20:30:42,146 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:42,148 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:42,150 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-09-11 20:30:42,151 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:42,160 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:42,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:42,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:42,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:42,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,165 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-09-11 20:30:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:42,213 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-09-11 20:30:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:42,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 20:30:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:42,231 INFO L225 Difference]: With dead ends: 228 [2020-09-11 20:30:42,231 INFO L226 Difference]: Without dead ends: 228 [2020-09-11 20:30:42,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-11 20:30:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-09-11 20:30:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-11 20:30:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-09-11 20:30:42,238 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-09-11 20:30:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:42,238 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-09-11 20:30:42,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-09-11 20:30:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-11 20:30:42,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:42,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:42,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 20:30:42,241 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:42,241 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-09-11 20:30:42,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:42,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856905020] [2020-09-11 20:30:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:42,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856905020] [2020-09-11 20:30:42,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:42,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:30:42,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [96656498] [2020-09-11 20:30:42,281 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:42,282 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:42,284 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 46 transitions. [2020-09-11 20:30:42,284 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:42,292 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:42,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:42,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:42,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:42,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,293 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-09-11 20:30:42,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:42,342 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-09-11 20:30:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:42,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-11 20:30:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:42,343 INFO L225 Difference]: With dead ends: 194 [2020-09-11 20:30:42,343 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 20:30:42,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 20:30:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 20:30:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 20:30:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 20:30:42,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-11 20:30:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:42,345 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 20:30:42,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 20:30:42,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 20:30:42,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 20:30:42,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 08:30:42 BasicIcfg [2020-09-11 20:30:42,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 20:30:42,354 INFO L168 Benchmark]: Toolchain (without parser) took 3875.22 ms. Allocated memory was 138.9 MB in the beginning and 248.5 MB in the end (delta: 109.6 MB). Free memory was 100.5 MB in the beginning and 198.4 MB in the end (delta: -97.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:42,355 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 20:30:42,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.22 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 164.3 MB in the end (delta: -64.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:42,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.97 ms. Allocated memory is still 204.5 MB. Free memory was 164.3 MB in the beginning and 162.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:42,358 INFO L168 Benchmark]: Boogie Preprocessor took 38.51 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 161.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:42,358 INFO L168 Benchmark]: RCFGBuilder took 478.36 ms. Allocated memory is still 204.5 MB. Free memory was 161.0 MB in the beginning and 139.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:42,359 INFO L168 Benchmark]: TraceAbstraction took 2357.37 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 138.8 MB in the beginning and 198.4 MB in the end (delta: -59.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 20:30:42,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 916.22 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 164.3 MB in the end (delta: -64.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.97 ms. Allocated memory is still 204.5 MB. Free memory was 164.3 MB in the beginning and 162.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.51 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 161.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.36 ms. Allocated memory is still 204.5 MB. Free memory was 161.0 MB in the beginning and 139.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2357.37 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 138.8 MB in the beginning and 198.4 MB in the end (delta: -59.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 62 ProgramPointsBefore, 35 ProgramPointsAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 1006 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4373 CheckedPairsTotal, 39 TotalNumberOfCompositions - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 373 SDtfs, 150 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...