/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/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:59:16,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:59:16,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:59:16,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:59:16,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:59:16,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:59:16,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:59:16,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:59:16,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:59:16,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:59:16,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:59:16,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:59:16,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:59:16,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:59:16,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:59:16,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:59:16,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:59:16,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:59:16,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:59:16,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:59:16,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:59:16,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:59:16,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:59:16,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:59:16,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:59:16,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:59:16,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:59:16,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:59:16,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:59:16,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:59:16,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:59:16,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:59:16,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:59:16,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:59:16,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:59:16,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:59:16,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:59:16,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:59:16,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:59:16,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:59:16,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:59:16,547 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 [2022-12-13 09:59:16,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:59:16,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:59:16,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:59:16,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:59:16,579 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:59:16,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:59:16,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:59:16,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:59:16,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:59:16,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:59:16,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:59:16,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:59:16,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:59:16,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:59:16,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:59:16,584 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:59:16,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:59:16,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:59:16,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:59:16,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:59:16,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:59:16,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:59:16,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:59:16,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:59:16,941 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:59:16,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-13 09:59:17,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:59:18,256 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:59:18,256 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-13 09:59:18,268 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958d146b7/519abc431f2842248ee3a570b86746c7/FLAGa745f3f72 [2022-12-13 09:59:18,282 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958d146b7/519abc431f2842248ee3a570b86746c7 [2022-12-13 09:59:18,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:59:18,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 09:59:18,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:59:18,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:59:18,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:59:18,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1876438c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18, skipping insertion in model container [2022-12-13 09:59:18,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:59:18,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:59:18,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-13 09:59:18,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:59:18,657 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:59:18,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-13 09:59:18,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:59:18,737 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:59:18,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18 WrapperNode [2022-12-13 09:59:18,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:59:18,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:59:18,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:59:18,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:59:18,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,787 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-13 09:59:18,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:59:18,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:59:18,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:59:18,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:59:18,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:59:18,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:59:18,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:59:18,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:59:18,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (1/1) ... [2022-12-13 09:59:18,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:59:18,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 09:59:18,851 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) [2022-12-13 09:59:18,883 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 [2022-12-13 09:59:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:59:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 09:59:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:59:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:59:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:59:18,902 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 09:59:19,031 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 09:59:19,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:59:19,177 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 09:59:19,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:59:19,182 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 09:59:19,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:59:19 BoogieIcfgContainer [2022-12-13 09:59:19,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:59:19,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:59:19,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:59:19,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:59:19,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:59:18" (1/3) ... [2022-12-13 09:59:19,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ed259d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:59:19, skipping insertion in model container [2022-12-13 09:59:19,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:18" (2/3) ... [2022-12-13 09:59:19,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ed259d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:59:19, skipping insertion in model container [2022-12-13 09:59:19,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:59:19" (3/3) ... [2022-12-13 09:59:19,191 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-12-13 09:59:19,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:59:19,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:59:19,206 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:59:19,301 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:59:19,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 127 flow [2022-12-13 09:59:19,402 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-12-13 09:59:19,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:19,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-13 09:59:19,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 61 transitions, 127 flow [2022-12-13 09:59:19,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-13 09:59:19,412 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:19,431 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 09:59:19,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-13 09:59:19,472 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-13 09:59:19,473 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:19,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 09:59:19,475 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 09:59:19,476 INFO L226 LiptonReduction]: Number of co-enabled transitions 264 [2022-12-13 09:59:22,468 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-13 09:59:22,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 09:59:22,486 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;@28ae6a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:59:22,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 09:59:22,489 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-13 09:59:22,490 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:22,490 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:22,490 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 09:59:22,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1994105818, now seen corresponding path program 1 times [2022-12-13 09:59:22,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:22,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170424698] [2022-12-13 09:59:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:59:22,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:22,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170424698] [2022-12-13 09:59:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170424698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:22,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:22,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:59:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840013107] [2022-12-13 09:59:22,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:22,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:59:22,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:59:22,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:59:22,806 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-13 09:59:22,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-13 09:59:22,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:22,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-13 09:59:22,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:22,861 INFO L130 PetriNetUnfolder]: 27/78 cut-off events. [2022-12-13 09:59:22,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:22,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 78 events. 27/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 274 event pairs, 24 based on Foata normal form. 9/60 useless extension candidates. Maximal degree in co-relation 147. Up to 65 conditions per place. [2022-12-13 09:59:22,863 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 9 selfloop transitions, 6 changer transitions 4/20 dead transitions. [2022-12-13 09:59:22,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 79 flow [2022-12-13 09:59:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:59:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:59:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-12-13 09:59:22,872 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49019607843137253 [2022-12-13 09:59:22,874 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 3 states and 25 transitions. [2022-12-13 09:59:22,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 79 flow [2022-12-13 09:59:22,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:59:22,878 INFO L231 Difference]: Finished difference. Result has 23 places, 13 transitions, 48 flow [2022-12-13 09:59:22,879 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2022-12-13 09:59:22,882 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2022-12-13 09:59:22,883 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:59:22,883 INFO L89 Accepts]: Start accepts. Operand has 23 places, 13 transitions, 48 flow [2022-12-13 09:59:22,885 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:59:22,886 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:22,886 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 13 transitions, 48 flow [2022-12-13 09:59:22,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 13 transitions, 48 flow [2022-12-13 09:59:22,890 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-13 09:59:22,890 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 09:59:22,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-12-13 09:59:22,892 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 13 transitions, 48 flow [2022-12-13 09:59:22,892 INFO L226 LiptonReduction]: Number of co-enabled transitions 44 [2022-12-13 09:59:22,938 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [134] L689-->L690: Formula: (= 2 v_~g~0_4) InVars {} OutVars{~g~0=v_~g~0_4} AuxVars[] AssignedVars[~g~0] and [187] L685-1-->L688: Formula: (let ((.cse0 (select |v_#pthreadsMutex_276| |v_~#A~0.base_92|))) (and (= (store |v_#pthreadsMutex_276| |v_~#A~0.base_92| (store .cse0 |v_~#A~0.offset_92| 1)) |v_#pthreadsMutex_275|) (= v_~g~0_68 1) (= (select .cse0 |v_~#A~0.offset_92|) 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_276|, ~#A~0.offset=|v_~#A~0.offset_92|, ~#A~0.base=|v_~#A~0.base_92|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_275|, ~#A~0.offset=|v_~#A~0.offset_92|, ~g~0=v_~g~0_68, t_funThread1of1ForFork0_#t~nondet1=|v_t_funThread1of1ForFork0_#t~nondet1_67|, t_funThread1of1ForFork0_#t~nondet2=|v_t_funThread1of1ForFork0_#t~nondet2_51|, ~#A~0.base=|v_~#A~0.base_92|} AuxVars[] AssignedVars[#pthreadsMutex, ~g~0, t_funThread1of1ForFork0_#t~nondet1, t_funThread1of1ForFork0_#t~nondet2] [2022-12-13 09:59:22,965 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:59:22,966 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 83 [2022-12-13 09:59:22,967 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 51 flow [2022-12-13 09:59:22,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-13 09:59:22,967 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:22,967 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:59:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:59:22,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:22,968 INFO L85 PathProgramCache]: Analyzing trace with hash 800255505, now seen corresponding path program 1 times [2022-12-13 09:59:22,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:22,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100238689] [2022-12-13 09:59:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:59:23,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:23,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100238689] [2022-12-13 09:59:23,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100238689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:23,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:23,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:59:23,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423671869] [2022-12-13 09:59:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:23,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:59:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:59:23,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:59:23,048 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-13 09:59:23,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-13 09:59:23,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:23,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-13 09:59:23,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:23,092 INFO L130 PetriNetUnfolder]: 11/47 cut-off events. [2022-12-13 09:59:23,092 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 09:59:23,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 47 events. 11/47 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 135 event pairs, 4 based on Foata normal form. 4/41 useless extension candidates. Maximal degree in co-relation 111. Up to 33 conditions per place. [2022-12-13 09:59:23,093 INFO L137 encePairwiseOnDemand]: 6/13 looper letters, 9 selfloop transitions, 4 changer transitions 5/18 dead transitions. [2022-12-13 09:59:23,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 102 flow [2022-12-13 09:59:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:59:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:59:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2022-12-13 09:59:23,094 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5128205128205128 [2022-12-13 09:59:23,094 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 51 flow. Second operand 3 states and 20 transitions. [2022-12-13 09:59:23,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 102 flow [2022-12-13 09:59:23,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 18 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 09:59:23,095 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 51 flow [2022-12-13 09:59:23,096 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2022-12-13 09:59:23,096 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, -2 predicate places. [2022-12-13 09:59:23,096 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:59:23,097 INFO L89 Accepts]: Start accepts. Operand has 19 places, 12 transitions, 51 flow [2022-12-13 09:59:23,098 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:59:23,098 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:23,098 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 12 transitions, 51 flow [2022-12-13 09:59:23,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 12 transitions, 51 flow [2022-12-13 09:59:23,111 INFO L130 PetriNetUnfolder]: 4/33 cut-off events. [2022-12-13 09:59:23,111 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 09:59:23,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 33 events. 4/33 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 84 event pairs, 4 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 64. Up to 17 conditions per place. [2022-12-13 09:59:23,112 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 12 transitions, 51 flow [2022-12-13 09:59:23,112 INFO L226 LiptonReduction]: Number of co-enabled transitions 2 [2022-12-13 09:59:23,161 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 09:59:23,283 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 09:59:23,284 INFO L241 LiptonReduction]: Total number of compositions: 4 [2022-12-13 09:59:23,285 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 189 [2022-12-13 09:59:23,285 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 39 flow [2022-12-13 09:59:23,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-13 09:59:23,286 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:23,286 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:59:23,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:59:23,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1700111996, now seen corresponding path program 1 times [2022-12-13 09:59:23,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:23,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749632373] [2022-12-13 09:59:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:59:23,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749632373] [2022-12-13 09:59:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749632373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:23,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:23,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 09:59:23,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567216911] [2022-12-13 09:59:23,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:23,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:59:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:59:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:59:23,517 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 8 [2022-12-13 09:59:23,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 39 flow. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-13 09:59:23,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:23,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 8 [2022-12-13 09:59:23,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:23,550 INFO L130 PetriNetUnfolder]: 3/18 cut-off events. [2022-12-13 09:59:23,550 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 09:59:23,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 18 events. 3/18 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 40 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 55. Up to 16 conditions per place. [2022-12-13 09:59:23,550 INFO L137 encePairwiseOnDemand]: 5/8 looper letters, 6 selfloop transitions, 2 changer transitions 3/11 dead transitions. [2022-12-13 09:59:23,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 11 transitions, 76 flow [2022-12-13 09:59:23,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:59:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:59:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-13 09:59:23,551 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-13 09:59:23,552 INFO L175 Difference]: Start difference. First operand has 14 places, 8 transitions, 39 flow. Second operand 4 states and 12 transitions. [2022-12-13 09:59:23,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 11 transitions, 76 flow [2022-12-13 09:59:23,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 11 transitions, 72 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 09:59:23,553 INFO L231 Difference]: Finished difference. Result has 17 places, 8 transitions, 42 flow [2022-12-13 09:59:23,553 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=8, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=17, PETRI_TRANSITIONS=8} [2022-12-13 09:59:23,554 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, -4 predicate places. [2022-12-13 09:59:23,554 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:59:23,555 INFO L89 Accepts]: Start accepts. Operand has 17 places, 8 transitions, 42 flow [2022-12-13 09:59:23,555 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:59:23,555 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:23,555 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 8 transitions, 42 flow [2022-12-13 09:59:23,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 8 transitions, 42 flow [2022-12-13 09:59:23,559 INFO L130 PetriNetUnfolder]: 3/18 cut-off events. [2022-12-13 09:59:23,559 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 09:59:23,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 18 events. 3/18 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 34 event pairs, 3 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 39. Up to 16 conditions per place. [2022-12-13 09:59:23,560 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 8 transitions, 42 flow [2022-12-13 09:59:23,560 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:59:23,606 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:59:23,611 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 57 [2022-12-13 09:59:23,611 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 7 transitions, 40 flow [2022-12-13 09:59:23,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-13 09:59:23,612 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:23,612 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 09:59:23,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:59:23,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash 6544758, now seen corresponding path program 1 times [2022-12-13 09:59:23,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:23,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255562362] [2022-12-13 09:59:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:23,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:59:23,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:23,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255562362] [2022-12-13 09:59:23,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255562362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:23,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:23,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:59:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137966213] [2022-12-13 09:59:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:23,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:59:23,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:23,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:59:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:59:23,765 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 7 [2022-12-13 09:59:23,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 7 transitions, 40 flow. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-13 09:59:23,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:23,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 7 [2022-12-13 09:59:23,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:23,780 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 09:59:23,783 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 09:59:23,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 6 events. 0/6 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 09:59:23,786 INFO L137 encePairwiseOnDemand]: 1/7 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-13 09:59:23,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 6 transitions, 43 flow [2022-12-13 09:59:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:59:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:59:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-12-13 09:59:23,788 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-13 09:59:23,788 INFO L175 Difference]: Start difference. First operand has 16 places, 7 transitions, 40 flow. Second operand 4 states and 7 transitions. [2022-12-13 09:59:23,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 6 transitions, 43 flow [2022-12-13 09:59:23,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 6 transitions, 27 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 09:59:23,789 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2022-12-13 09:59:23,789 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=7, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2022-12-13 09:59:23,790 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, -8 predicate places. [2022-12-13 09:59:23,790 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:23,790 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 0 transitions, 0 flow [2022-12-13 09:59:23,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:23,790 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 09:59:23,790 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:23,791 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. [2022-12-13 09:59:23,791 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:23,791 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:59:23,791 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:59:23,792 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 09:59:23,792 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:23,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-13 09:59:23,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 09:59:23,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 09:59:23,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:59:23,795 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 09:59:23,797 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:59:23,798 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:59:23,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:59:23 BasicIcfg [2022-12-13 09:59:23,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:59:23,801 INFO L158 Benchmark]: Toolchain (without parser) took 5514.90ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 163.7MB in the beginning and 127.9MB in the end (delta: 35.8MB). Peak memory consumption was 73.9MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,801 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:59:23,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.80ms. Allocated memory is still 188.7MB. Free memory was 163.2MB in the beginning and 144.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.36ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 142.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,802 INFO L158 Benchmark]: Boogie Preprocessor took 30.79ms. Allocated memory is still 188.7MB. Free memory was 142.5MB in the beginning and 141.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,802 INFO L158 Benchmark]: RCFGBuilder took 364.68ms. Allocated memory is still 188.7MB. Free memory was 141.5MB in the beginning and 128.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,802 INFO L158 Benchmark]: TraceAbstraction took 4614.26ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 126.8MB in the beginning and 127.9MB in the end (delta: -1.0MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. [2022-12-13 09:59:23,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 450.80ms. Allocated memory is still 188.7MB. Free memory was 163.2MB in the beginning and 144.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.36ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 142.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.79ms. Allocated memory is still 188.7MB. Free memory was 142.5MB in the beginning and 141.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 364.68ms. Allocated memory is still 188.7MB. Free memory was 141.5MB in the beginning and 128.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4614.26ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 126.8MB in the beginning and 127.9MB in the end (delta: -1.0MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 56 PlacesBefore, 21 PlacesAfterwards, 52 TransitionsBefore, 17 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 374, independent: 309, independent conditional: 309, independent unconditional: 0, dependent: 65, dependent conditional: 65, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 247, independent: 217, independent conditional: 0, independent unconditional: 217, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 247, independent: 217, independent conditional: 0, independent unconditional: 217, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 247, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 168, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 374, independent: 92, independent conditional: 92, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 247, unknown conditional: 247, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 247, Positive cache size: 217, Positive conditional cache size: 217, Positive unconditional cache size: 0, Negative cache size: 30, Negative conditional cache size: 30, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 19 PlacesBefore, 19 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, independent: 35, independent conditional: 35, independent unconditional: 0, dependent: 37, dependent conditional: 37, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, independent: 10, independent conditional: 3, independent unconditional: 7, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, independent: 10, independent conditional: 3, independent unconditional: 7, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 7, independent conditional: 3, independent unconditional: 4, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 29, independent: 12, independent conditional: 4, independent unconditional: 7, dependent: 18, dependent conditional: 2, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 27, dependent conditional: 27, dependent unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 19 PlacesBefore, 14 PlacesAfterwards, 12 TransitionsBefore, 8 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, 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: 1, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 17 PlacesBefore, 16 PlacesAfterwards, 8 TransitionsBefore, 7 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: 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: 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: 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): 21, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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: 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: 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: 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): 21, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: 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 3 procedures, 74 locations, 2 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 1 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=1, 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, 0.6s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-12-13 09:59:23,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...