/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:06:04,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:06:04,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:06:04,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:06:04,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:06:04,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:06:04,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:06:04,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:06:04,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:06:04,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:06:04,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:06:04,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:06:04,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:06:04,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:06:04,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:06:04,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:06:04,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:06:04,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:06:04,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:06:04,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:06:04,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:06:04,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:06:04,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:06:04,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:06:04,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:06:04,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:06:04,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:06:04,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:06:04,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:06:04,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:06:04,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:06:04,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:06:04,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:06:04,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:06:04,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:06:04,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:06:04,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:06:04,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:06:04,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:06:04,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:06:04,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:06:04,903 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-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:06:04,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:06:04,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:06:04,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:06:04,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:06:04,928 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:06:04,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:06:04,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:06:04,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:06:04,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:06:04,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:06:04,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:06:04,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:04,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:06:04,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:06:04,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:06:05,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:06:05,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:06:05,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:06:05,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:06:05,216 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:06:05,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2022-12-06 04:06:06,438 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:06:06,740 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:06:06,741 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2022-12-06 04:06:06,773 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/251617301/420456a85c2044ffb9b0ae3fd6df0394/FLAG7af9dbed3 [2022-12-06 04:06:06,790 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/251617301/420456a85c2044ffb9b0ae3fd6df0394 [2022-12-06 04:06:06,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:06:06,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:06:06,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:06,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:06:06,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:06:06,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:06" (1/1) ... [2022-12-06 04:06:06,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6543acbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:06, skipping insertion in model container [2022-12-06 04:06:06,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:06" (1/1) ... [2022-12-06 04:06:06,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:06:06,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:06:07,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2022-12-06 04:06:07,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:07,266 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:06:07,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2022-12-06 04:06:07,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:07,345 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:06:07,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07 WrapperNode [2022-12-06 04:06:07,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:07,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:07,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:06:07,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:06:07,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,403 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-12-06 04:06:07,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:07,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:06:07,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:06:07,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:06:07,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:06:07,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:06:07,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:06:07,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:06:07,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (1/1) ... [2022-12-06 04:06:07,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:07,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:06:07,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 04:06:07,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 04:06:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:06:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 04:06:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 04:06:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:06:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:06:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:06:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:06:07,513 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:06:07,609 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:06:07,610 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:06:07,822 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:06:07,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:06:07,829 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:06:07,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:07 BoogieIcfgContainer [2022-12-06 04:06:07,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:06:07,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:06:07,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:06:07,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:06:07,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:06:06" (1/3) ... [2022-12-06 04:06:07,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205da52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:07, skipping insertion in model container [2022-12-06 04:06:07,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:07" (2/3) ... [2022-12-06 04:06:07,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205da52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:07, skipping insertion in model container [2022-12-06 04:06:07,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:07" (3/3) ... [2022-12-06 04:06:07,835 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2022-12-06 04:06:07,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:06:07,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:06:07,848 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:06:07,905 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 04:06:07,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 04:06:07,990 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2022-12-06 04:06:07,990 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:07,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 1/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 04:06:07,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 04:06:07,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:08,000 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:08,011 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:08,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:08,033 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2022-12-06 04:06:08,033 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:08,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 04:06:08,035 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:08,035 INFO L188 LiptonReduction]: Number of co-enabled transitions 732 [2022-12-06 04:06:11,362 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-06 04:06:11,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:06:11,376 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e608fdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:06:11,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 04:06:11,381 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-06 04:06:11,381 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:11,381 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:11,381 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:11,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:06:11,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:11,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1235596550, now seen corresponding path program 1 times [2022-12-06 04:06:11,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:11,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975392190] [2022-12-06 04:06:11,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:11,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:11,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:11,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975392190] [2022-12-06 04:06:11,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975392190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:11,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:11,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:06:11,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277206228] [2022-12-06 04:06:11,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:11,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 04:06:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:11,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 04:06:11,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 04:06:11,824 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2022-12-06 04:06:11,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:11,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:11,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2022-12-06 04:06:11,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:11,973 INFO L130 PetriNetUnfolder]: 113/289 cut-off events. [2022-12-06 04:06:11,973 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-06 04:06:11,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 289 events. 113/289 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1323 event pairs, 31 based on Foata normal form. 1/288 useless extension candidates. Maximal degree in co-relation 464. Up to 102 conditions per place. [2022-12-06 04:06:11,976 INFO L137 encePairwiseOnDemand]: 18/23 looper letters, 23 selfloop transitions, 4 changer transitions 14/46 dead transitions. [2022-12-06 04:06:11,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 46 transitions, 195 flow [2022-12-06 04:06:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 04:06:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 04:06:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2022-12-06 04:06:11,984 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2022-12-06 04:06:11,985 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 58 flow. Second operand 6 states and 72 transitions. [2022-12-06 04:06:11,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 46 transitions, 195 flow [2022-12-06 04:06:11,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 181 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 04:06:11,988 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 73 flow [2022-12-06 04:06:11,989 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2022-12-06 04:06:11,992 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2022-12-06 04:06:11,992 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:11,992 INFO L89 Accepts]: Start accepts. Operand has 34 places, 25 transitions, 73 flow [2022-12-06 04:06:11,994 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:11,994 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:11,994 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 73 flow [2022-12-06 04:06:11,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 73 flow [2022-12-06 04:06:11,999 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2022-12-06 04:06:11,999 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:12,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 37 events. 1/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 49. Up to 5 conditions per place. [2022-12-06 04:06:12,000 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 73 flow [2022-12-06 04:06:12,000 INFO L188 LiptonReduction]: Number of co-enabled transitions 172 [2022-12-06 04:06:12,027 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:06:12,028 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 36 [2022-12-06 04:06:12,028 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 75 flow [2022-12-06 04:06:12,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:12,028 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:12,028 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:12,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:06:12,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:06:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash -165078750, now seen corresponding path program 1 times [2022-12-06 04:06:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:12,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929660174] [2022-12-06 04:06:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:12,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:12,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929660174] [2022-12-06 04:06:12,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929660174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:12,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:12,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:06:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078397388] [2022-12-06 04:06:12,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:12,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:06:12,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:06:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:06:12,116 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2022-12-06 04:06:12,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:12,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:12,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2022-12-06 04:06:12,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:12,156 INFO L130 PetriNetUnfolder]: 43/148 cut-off events. [2022-12-06 04:06:12,156 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-06 04:06:12,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 148 events. 43/148 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 530 event pairs, 20 based on Foata normal form. 18/166 useless extension candidates. Maximal degree in co-relation 292. Up to 59 conditions per place. [2022-12-06 04:06:12,157 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 15 selfloop transitions, 8 changer transitions 1/29 dead transitions. [2022-12-06 04:06:12,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 128 flow [2022-12-06 04:06:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:06:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:06:12,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2022-12-06 04:06:12,158 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 04:06:12,158 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 75 flow. Second operand 3 states and 42 transitions. [2022-12-06 04:06:12,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 128 flow [2022-12-06 04:06:12,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 124 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 04:06:12,159 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 76 flow [2022-12-06 04:06:12,160 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2022-12-06 04:06:12,160 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-06 04:06:12,160 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:12,160 INFO L89 Accepts]: Start accepts. Operand has 32 places, 23 transitions, 76 flow [2022-12-06 04:06:12,161 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:12,161 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:12,161 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 76 flow [2022-12-06 04:06:12,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 76 flow [2022-12-06 04:06:12,165 INFO L130 PetriNetUnfolder]: 2/40 cut-off events. [2022-12-06 04:06:12,165 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:06:12,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 40 events. 2/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 52. Up to 9 conditions per place. [2022-12-06 04:06:12,165 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 23 transitions, 76 flow [2022-12-06 04:06:12,165 INFO L188 LiptonReduction]: Number of co-enabled transitions 84 [2022-12-06 04:06:12,449 INFO L203 LiptonReduction]: Total number of compositions: 9 [2022-12-06 04:06:12,450 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 290 [2022-12-06 04:06:12,450 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 52 flow [2022-12-06 04:06:12,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:12,450 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:12,451 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:12,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:06:12,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:06:12,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:12,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1178382122, now seen corresponding path program 1 times [2022-12-06 04:06:12,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:12,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720163862] [2022-12-06 04:06:12,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:12,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:06:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:12,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720163862] [2022-12-06 04:06:12,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720163862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:12,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:12,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:06:12,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180488509] [2022-12-06 04:06:12,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:12,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:06:12,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:12,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:06:12,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:06:12,556 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 04:06:12,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 14 transitions, 52 flow. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:12,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:12,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 04:06:12,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:12,601 INFO L130 PetriNetUnfolder]: 21/53 cut-off events. [2022-12-06 04:06:12,602 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-12-06 04:06:12,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 53 events. 21/53 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 3 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 51. Up to 25 conditions per place. [2022-12-06 04:06:12,602 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-06 04:06:12,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 108 flow [2022-12-06 04:06:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:06:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:06:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-06 04:06:12,604 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3 [2022-12-06 04:06:12,604 INFO L175 Difference]: Start difference. First operand has 22 places, 14 transitions, 52 flow. Second operand 5 states and 21 transitions. [2022-12-06 04:06:12,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 108 flow [2022-12-06 04:06:12,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 100 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-06 04:06:12,605 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-06 04:06:12,605 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-06 04:06:12,606 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -7 predicate places. [2022-12-06 04:06:12,606 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:12,606 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2022-12-06 04:06:12,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:12,606 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:06:12,606 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:12,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:06:12,607 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:12,607 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:06:12,607 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:06:12,607 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-06 04:06:12,608 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:12,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:12,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 04:06:12,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 04:06:12,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 04:06:12,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:06:12,610 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 04:06:12,612 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:06:12,612 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:06:12,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:06:12 BasicIcfg [2022-12-06 04:06:12,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:06:12,615 INFO L158 Benchmark]: Toolchain (without parser) took 5821.15ms. Allocated memory was 194.0MB in the beginning and 261.1MB in the end (delta: 67.1MB). Free memory was 167.8MB in the beginning and 137.2MB in the end (delta: 30.6MB). Peak memory consumption was 97.5MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,615 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 170.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:12,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.08ms. Allocated memory is still 194.0MB. Free memory was 167.8MB in the beginning and 148.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 194.0MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,615 INFO L158 Benchmark]: Boogie Preprocessor took 44.89ms. Allocated memory is still 194.0MB. Free memory was 146.1MB in the beginning and 144.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,616 INFO L158 Benchmark]: RCFGBuilder took 379.99ms. Allocated memory is still 194.0MB. Free memory was 144.7MB in the beginning and 169.0MB in the end (delta: -24.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,616 INFO L158 Benchmark]: TraceAbstraction took 4782.92ms. Allocated memory was 194.0MB in the beginning and 261.1MB in the end (delta: 67.1MB). Free memory was 168.5MB in the beginning and 137.2MB in the end (delta: 31.3MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. [2022-12-06 04:06:12,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 170.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 550.08ms. Allocated memory is still 194.0MB. Free memory was 167.8MB in the beginning and 148.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 194.0MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.89ms. Allocated memory is still 194.0MB. Free memory was 146.1MB in the beginning and 144.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 379.99ms. Allocated memory is still 194.0MB. Free memory was 144.7MB in the beginning and 169.0MB in the end (delta: -24.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4782.92ms. Allocated memory was 194.0MB in the beginning and 261.1MB in the end (delta: 67.1MB). Free memory was 168.5MB in the beginning and 137.2MB in the end (delta: 31.3MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 546, independent unconditional: 0, dependent: 57, dependent conditional: 57, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 603, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 566, Positive conditional cache size: 0, Positive unconditional cache size: 566, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 102, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 42, dependent conditional: 42, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 102, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 102, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 102, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 37, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 37, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 102, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 37, unknown conditional: 0, unknown unconditional: 37] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 31 PlacesBefore, 22 PlacesAfterwards, 23 TransitionsBefore, 14 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 30, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 3, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30, independent: 30, independent conditional: 3, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 3, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 3, independent unconditional: 22, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 25, unknown conditional: 3, unknown unconditional: 22] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 56, Positive conditional cache size: 3, Positive unconditional cache size: 53, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 727]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:06:12,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...