/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 19:26:26,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 19:26:26,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 19:26:26,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 19:26:26,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 19:26:26,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 19:26:26,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 19:26:26,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 19:26:26,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 19:26:26,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 19:26:26,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 19:26:26,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 19:26:26,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 19:26:26,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 19:26:26,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 19:26:26,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 19:26:26,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 19:26:26,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 19:26:26,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 19:26:26,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 19:26:26,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 19:26:26,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 19:26:26,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 19:26:26,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 19:26:26,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 19:26:26,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 19:26:26,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 19:26:26,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 19:26:26,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 19:26:26,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 19:26:26,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 19:26:26,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 19:26:26,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 19:26:26,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 19:26:26,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 19:26:26,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 19:26:26,939 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-VariableLbe-MCR.epf [2019-12-27 19:26:26,963 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 19:26:26,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 19:26:26,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 19:26:26,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 19:26:26,965 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 19:26:26,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 19:26:26,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 19:26:26,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 19:26:26,967 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 19:26:26,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 19:26:26,967 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 19:26:26,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 19:26:26,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 19:26:26,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 19:26:26,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 19:26:26,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 19:26:26,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 19:26:26,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 19:26:26,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 19:26:26,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 19:26:26,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 19:26:26,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 19:26:26,970 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 19:26:26,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 19:26:26,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 19:26:26,970 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 19:26:26,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 19:26:27,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 19:26:27,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 19:26:27,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 19:26:27,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 19:26:27,251 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 19:26:27,252 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-27 19:26:27,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17225936/e592b0ec9e5c48f8a13c142cedb02eba/FLAG109ff7fe4 [2019-12-27 19:26:27,848 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 19:26:27,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-27 19:26:27,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17225936/e592b0ec9e5c48f8a13c142cedb02eba/FLAG109ff7fe4 [2019-12-27 19:26:28,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a17225936/e592b0ec9e5c48f8a13c142cedb02eba [2019-12-27 19:26:28,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 19:26:28,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 19:26:28,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 19:26:28,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 19:26:28,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 19:26:28,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb8c5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28, skipping insertion in model container [2019-12-27 19:26:28,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 19:26:28,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 19:26:28,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:26:28,782 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 19:26:28,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:26:28,888 INFO L208 MainTranslator]: Completed translation [2019-12-27 19:26:28,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28 WrapperNode [2019-12-27 19:26:28,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 19:26:28,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 19:26:28,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 19:26:28,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 19:26:28,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 19:26:28,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 19:26:28,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 19:26:28,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 19:26:28,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (1/1) ... [2019-12-27 19:26:28,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 19:26:28,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 19:26:28,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 19:26:28,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 19:26:28,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (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 19:26:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 19:26:29,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 19:26:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 19:26:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 19:26:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 19:26:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 19:26:29,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 19:26:29,030 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 19:26:29,170 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2019-12-27 19:26:29,213 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2019-12-27 19:26:29,352 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 19:26:29,352 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 19:26:29,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:26:29 BoogieIcfgContainer [2019-12-27 19:26:29,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 19:26:29,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 19:26:29,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 19:26:29,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 19:26:29,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:26:28" (1/3) ... [2019-12-27 19:26:29,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134e8868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:26:29, skipping insertion in model container [2019-12-27 19:26:29,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:26:28" (2/3) ... [2019-12-27 19:26:29,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134e8868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:26:29, skipping insertion in model container [2019-12-27 19:26:29,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:26:29" (3/3) ... [2019-12-27 19:26:29,365 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2019-12-27 19:26:29,379 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 19:26:29,379 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 19:26:29,387 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 19:26:29,388 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 19:26:29,412 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,413 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,413 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,413 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,414 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,414 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,420 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,420 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,420 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:26:29,437 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-27 19:26:29,457 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:26:29,458 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:26:29,458 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:26:29,458 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:26:29,458 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:26:29,459 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:26:29,459 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:26:29,459 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:26:29,475 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 37 transitions [2019-12-27 19:26:29,477 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions [2019-12-27 19:26:29,512 INFO L132 PetriNetUnfolder]: 1/36 cut-off events. [2019-12-27 19:26:29,513 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 19:26:29,518 INFO L76 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs. 0/34 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-27 19:26:29,521 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions [2019-12-27 19:26:29,534 INFO L132 PetriNetUnfolder]: 1/36 cut-off events. [2019-12-27 19:26:29,535 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 19:26:29,537 INFO L76 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs. 0/34 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-27 19:26:29,538 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 190 [2019-12-27 19:26:29,541 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 19:26:30,262 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 19:26:30,262 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 19:26:30,266 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 11 transitions [2019-12-27 19:26:30,276 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26 states. [2019-12-27 19:26:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-12-27 19:26:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 19:26:30,291 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:26:30,292 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 19:26:30,293 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:26:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:26:30,300 INFO L82 PathProgramCache]: Analyzing trace with hash 135654362, now seen corresponding path program 1 times [2019-12-27 19:26:30,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:26:30,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320298040] [2019-12-27 19:26:30,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:26:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:26:30,491 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 19:26:30,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320298040] [2019-12-27 19:26:30,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:26:30,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:26:30,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [136257465] [2019-12-27 19:26:30,495 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:26:30,500 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:26:30,513 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 19:26:30,513 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:26:30,517 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:26:30,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:26:30,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:26:30,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:26:30,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:26:30,536 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-12-27 19:26:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:26:30,561 INFO L93 Difference]: Finished difference Result 30 states and 43 transitions. [2019-12-27 19:26:30,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:26:30,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 19:26:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:26:30,571 INFO L225 Difference]: With dead ends: 30 [2019-12-27 19:26:30,571 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 19:26:30,573 INFO L631 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 [2019-12-27 19:26:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 19:26:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 19:26:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 19:26:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-27 19:26:30,606 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-12-27 19:26:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:26:30,606 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-27 19:26:30,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:26:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-27 19:26:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 19:26:30,607 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:26:30,607 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:26:30,608 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:26:30,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:26:30,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1490764093, now seen corresponding path program 1 times [2019-12-27 19:26:30,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:26:30,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221099537] [2019-12-27 19:26:30,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:26:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:26:30,664 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 19:26:30,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221099537] [2019-12-27 19:26:30,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:26:30,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:26:30,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [96186810] [2019-12-27 19:26:30,666 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:26:30,666 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:26:30,669 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 19:26:30,669 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:26:30,669 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:26:30,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:26:30,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:26:30,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:26:30,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:26:30,671 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-12-27 19:26:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:26:30,680 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-12-27 19:26:30,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:26:30,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 19:26:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:26:30,682 INFO L225 Difference]: With dead ends: 12 [2019-12-27 19:26:30,682 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 19:26:30,683 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 19:26:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 19:26:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 19:26:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 19:26:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-27 19:26:30,686 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2019-12-27 19:26:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:26:30,686 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-27 19:26:30,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:26:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-27 19:26:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 19:26:30,687 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:26:30,687 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:26:30,687 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:26:30,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:26:30,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1515788533, now seen corresponding path program 2 times [2019-12-27 19:26:30,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:26:30,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424191993] [2019-12-27 19:26:30,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:26:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:26:30,747 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 19:26:30,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424191993] [2019-12-27 19:26:30,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:26:30,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:26:30,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2092847498] [2019-12-27 19:26:30,748 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:26:30,749 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:26:30,754 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 9 transitions. [2019-12-27 19:26:30,755 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:26:30,758 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:26:30,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:26:30,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:26:30,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:26:30,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:26:30,759 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2019-12-27 19:26:30,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:26:30,765 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-12-27 19:26:30,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 19:26:30,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-27 19:26:30,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:26:30,767 INFO L225 Difference]: With dead ends: 5 [2019-12-27 19:26:30,767 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 19:26:30,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:26:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 19:26:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 19:26:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 19:26:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 19:26:30,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-27 19:26:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:26:30,769 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 19:26:30,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:26:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 19:26:30,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 19:26:30,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:26:30 BasicIcfg [2019-12-27 19:26:30,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 19:26:30,777 INFO L168 Benchmark]: Toolchain (without parser) took 2624.15 ms. Allocated memory was 145.8 MB in the beginning and 234.4 MB in the end (delta: 88.6 MB). Free memory was 102.8 MB in the beginning and 148.2 MB in the end (delta: -45.4 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,778 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.27 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 102.6 MB in the beginning and 165.3 MB in the end (delta: -62.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.87 ms. Allocated memory is still 205.0 MB. Free memory was 165.3 MB in the beginning and 163.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,781 INFO L168 Benchmark]: Boogie Preprocessor took 25.64 ms. Allocated memory is still 205.0 MB. Free memory was 163.3 MB in the beginning and 162.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,782 INFO L168 Benchmark]: RCFGBuilder took 388.64 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 144.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,783 INFO L168 Benchmark]: TraceAbstraction took 1418.45 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 144.8 MB in the beginning and 148.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-27 19:26:30,787 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.27 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 102.6 MB in the beginning and 165.3 MB in the end (delta: -62.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.87 ms. Allocated memory is still 205.0 MB. Free memory was 165.3 MB in the beginning and 163.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.64 ms. Allocated memory is still 205.0 MB. Free memory was 163.3 MB in the beginning and 162.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 388.64 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 144.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1418.45 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 144.8 MB in the beginning and 148.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 40 ProgramPointsBefore, 13 ProgramPointsAfterwards, 37 TransitionsBefore, 11 TransitionsAfterwards, 190 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 26 TotalNumberOfCompositions - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...