/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_47-refine-protected2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:59:27,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:59:27,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:59:27,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:59:27,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:59:27,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:59:27,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:59:27,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:59:27,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:59:27,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:59:27,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:59:27,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:59:27,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:59:27,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:59:27,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:59:27,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:59:27,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:59:27,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:59:27,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:59:27,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:59:27,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:59:27,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:59:27,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:59:27,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:59:27,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:59:27,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:59:27,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:59:27,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:59:27,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:59:27,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:59:27,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:59:27,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:59:27,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:59:27,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:59:27,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:59:27,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:59:27,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:59:27,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:59:27,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:59:27,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:59:27,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:59:27,558 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 09:59:27,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:59:27,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:59:27,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:59:27,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:59:27,584 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:59:27,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:59:27,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:59:27,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:59:27,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:59:27,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:59:27,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:59:27,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:59:27,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:59:27,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:59:27,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:59:27,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:59:27,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:59:27,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:59:27,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:59:27,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:59:27,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:59:27,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:59:27,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:59:27,839 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:59:27,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2022-12-13 09:59:28,821 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:59:29,025 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:59:29,025 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2022-12-13 09:59:29,035 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e6d95d9/a4c41653ee7c41f39e37c61388c878ea/FLAG977fb71c2 [2022-12-13 09:59:29,056 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e6d95d9/a4c41653ee7c41f39e37c61388c878ea [2022-12-13 09:59:29,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:59:29,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 09:59:29,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:59:29,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:59:29,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:59:29,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2440d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29, skipping insertion in model container [2022-12-13 09:59:29,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:59:29,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:59:29,189 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_47-refine-protected2_true.i[1094,1107] [2022-12-13 09:59:29,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:59:29,267 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:59:29,275 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_47-refine-protected2_true.i[1094,1107] [2022-12-13 09:59:29,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:59:29,334 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:59:29,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29 WrapperNode [2022-12-13 09:59:29,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:59:29,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:59:29,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:59:29,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:59:29,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,366 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2022-12-13 09:59:29,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:59:29,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:59:29,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:59:29,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:59:29,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:59:29,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:59:29,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:59:29,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:59:29,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (1/1) ... [2022-12-13 09:59:29,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:59:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 09:59:29,407 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 09:59:29,412 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 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 09:59:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:59:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:59:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:59:29,439 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 09:59:29,529 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 09:59:29,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:59:29,677 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 09:59:29,681 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:59:29,681 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 09:59:29,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:59:29 BoogieIcfgContainer [2022-12-13 09:59:29,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:59:29,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:59:29,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:59:29,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:59:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:59:29" (1/3) ... [2022-12-13 09:59:29,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bfeaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:59:29, skipping insertion in model container [2022-12-13 09:59:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:59:29" (2/3) ... [2022-12-13 09:59:29,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bfeaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:59:29, skipping insertion in model container [2022-12-13 09:59:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:59:29" (3/3) ... [2022-12-13 09:59:29,703 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_47-refine-protected2_true.i [2022-12-13 09:59:29,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:59:29,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 09:59:29,737 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:59:29,779 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:59:29,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 60 transitions, 125 flow [2022-12-13 09:59:29,844 INFO L130 PetriNetUnfolder]: 3/59 cut-off events. [2022-12-13 09:59:29,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:29,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 3/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 09:59:29,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 60 transitions, 125 flow [2022-12-13 09:59:29,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 45 transitions, 93 flow [2022-12-13 09:59:29,850 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:29,873 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 45 transitions, 93 flow [2022-12-13 09:59:29,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 93 flow [2022-12-13 09:59:29,884 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-12-13 09:59:29,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:29,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 45 events. 0/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 09:59:29,886 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 45 transitions, 93 flow [2022-12-13 09:59:29,886 INFO L226 LiptonReduction]: Number of co-enabled transitions 224 [2022-12-13 09:59:31,618 INFO L241 LiptonReduction]: Total number of compositions: 39 [2022-12-13 09:59:31,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 09:59:31,632 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;@79e8d135, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:59:31,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:59:31,634 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 09:59:31,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:31,634 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:31,634 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 09:59:31,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:31,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:31,637 INFO L85 PathProgramCache]: Analyzing trace with hash 208318, now seen corresponding path program 1 times [2022-12-13 09:59:31,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:31,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586955545] [2022-12-13 09:59:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:31,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:31,764 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 09:59:31,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:31,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586955545] [2022-12-13 09:59:31,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586955545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:31,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:31,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:59:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855893027] [2022-12-13 09:59:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:31,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 09:59:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:31,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 09:59:31,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 09:59:31,794 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 12 [2022-12-13 09:59:31,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 09:59:31,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:31,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 12 [2022-12-13 09:59:31,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:31,827 INFO L130 PetriNetUnfolder]: 10/31 cut-off events. [2022-12-13 09:59:31,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:31,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 31 events. 10/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 76 event pairs, 10 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 56. Up to 30 conditions per place. [2022-12-13 09:59:31,828 INFO L137 encePairwiseOnDemand]: 11/12 looper letters, 9 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2022-12-13 09:59:31,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 43 flow [2022-12-13 09:59:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:59:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 09:59:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 14 transitions. [2022-12-13 09:59:31,835 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-13 09:59:31,836 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 2 states and 14 transitions. [2022-12-13 09:59:31,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 43 flow [2022-12-13 09:59:31,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 11 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 09:59:31,839 INFO L231 Difference]: Finished difference. Result has 15 places, 11 transitions, 24 flow [2022-12-13 09:59:31,840 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=15, PETRI_TRANSITIONS=11} [2022-12-13 09:59:31,842 INFO L295 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2022-12-13 09:59:31,842 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:59:31,842 INFO L89 Accepts]: Start accepts. Operand has 15 places, 11 transitions, 24 flow [2022-12-13 09:59:31,844 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:59:31,844 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:31,844 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 11 transitions, 24 flow [2022-12-13 09:59:31,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 24 flow [2022-12-13 09:59:31,847 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 09:59:31,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:31,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 19 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 09:59:31,848 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 11 transitions, 24 flow [2022-12-13 09:59:31,848 INFO L226 LiptonReduction]: Number of co-enabled transitions 28 [2022-12-13 09:59:31,859 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:59:31,860 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-13 09:59:31,860 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2022-12-13 09:59:31,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 09:59:31,860 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:31,860 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 09:59:31,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:59:31,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash 6458006, now seen corresponding path program 1 times [2022-12-13 09:59:31,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:31,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681324085] [2022-12-13 09:59:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:31,971 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 09:59:31,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:31,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681324085] [2022-12-13 09:59:31,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681324085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:31,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:31,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:59:31,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558795351] [2022-12-13 09:59:31,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:31,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:59:31,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:31,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:59:31,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:59:31,973 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 11 [2022-12-13 09:59:31,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 24 flow. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 09:59:31,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:31,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 11 [2022-12-13 09:59:31,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:31,997 INFO L130 PetriNetUnfolder]: 6/28 cut-off events. [2022-12-13 09:59:31,997 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:31,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 28 events. 6/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 74 event pairs, 4 based on Foata normal form. 6/26 useless extension candidates. Maximal degree in co-relation 49. Up to 14 conditions per place. [2022-12-13 09:59:31,998 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 5 selfloop transitions, 2 changer transitions 6/14 dead transitions. [2022-12-13 09:59:31,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 14 transitions, 54 flow [2022-12-13 09:59:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:59:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:59:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-12-13 09:59:31,998 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-13 09:59:31,999 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 24 flow. Second operand 3 states and 19 transitions. [2022-12-13 09:59:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 14 transitions, 54 flow [2022-12-13 09:59:32,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 09:59:32,000 INFO L231 Difference]: Finished difference. Result has 18 places, 8 transitions, 30 flow [2022-12-13 09:59:32,001 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=8} [2022-12-13 09:59:32,001 INFO L295 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2022-12-13 09:59:32,001 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:59:32,002 INFO L89 Accepts]: Start accepts. Operand has 18 places, 8 transitions, 30 flow [2022-12-13 09:59:32,002 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:59:32,002 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:32,002 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 8 transitions, 30 flow [2022-12-13 09:59:32,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 15 places, 8 transitions, 30 flow [2022-12-13 09:59:32,006 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-13 09:59:32,006 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 09:59:32,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 27 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 09:59:32,006 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 8 transitions, 30 flow [2022-12-13 09:59:32,007 INFO L226 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-13 09:59:32,119 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 09:59:32,120 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:59:32,121 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 120 [2022-12-13 09:59:32,121 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 36 flow [2022-12-13 09:59:32,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 09:59:32,123 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:59:32,123 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 09:59:32,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:59:32,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:59:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:59:32,124 INFO L85 PathProgramCache]: Analyzing trace with hash 200198086, now seen corresponding path program 1 times [2022-12-13 09:59:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:59:32,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691893083] [2022-12-13 09:59:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:59:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:59:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:59:32,252 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 09:59:32,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:59:32,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691893083] [2022-12-13 09:59:32,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691893083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:59:32,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:59:32,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:59:32,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389283787] [2022-12-13 09:59:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:59:32,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:59:32,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:59:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:59:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:59:32,254 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 7 [2022-12-13 09:59:32,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 36 flow. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 09:59:32,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:59:32,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 7 [2022-12-13 09:59:32,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:59:32,276 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 09:59:32,276 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 09:59:32,276 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 4. Compared 6 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 09:59:32,276 INFO L137 encePairwiseOnDemand]: 2/7 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-13 09:59:32,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 6 transitions, 44 flow [2022-12-13 09:59:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:59:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:59:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-12-13 09:59:32,277 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2022-12-13 09:59:32,277 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 36 flow. Second operand 4 states and 9 transitions. [2022-12-13 09:59:32,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 6 transitions, 44 flow [2022-12-13 09:59:32,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 6 transitions, 32 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 09:59:32,278 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2022-12-13 09:59:32,278 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=7, PETRI_DIFFERENCE_MINUEND_FLOW=20, 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 09:59:32,278 INFO L295 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2022-12-13 09:59:32,278 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:59:32,279 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 0 transitions, 0 flow [2022-12-13 09:59:32,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:32,279 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 09:59:32,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:59:32,279 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 09:59:32,279 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:32,279 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:59:32,279 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:59:32,280 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 09:59:32,280 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 09:59:32,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 09:59:32,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 09:59:32,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-13 09:59:32,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 09:59:32,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:59:32,283 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 09:59:32,285 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:59:32,285 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:59:32,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:59:32 BasicIcfg [2022-12-13 09:59:32,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:59:32,287 INFO L158 Benchmark]: Toolchain (without parser) took 3228.83ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 175.5MB in the beginning and 162.1MB in the end (delta: 13.4MB). Peak memory consumption was 55.4MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,288 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 177.7MB in the beginning and 177.6MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:59:32,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.12ms. Allocated memory is still 201.3MB. Free memory was 175.0MB in the beginning and 156.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.66ms. Allocated memory is still 201.3MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,288 INFO L158 Benchmark]: Boogie Preprocessor took 20.31ms. Allocated memory is still 201.3MB. Free memory was 154.5MB in the beginning and 153.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,289 INFO L158 Benchmark]: RCFGBuilder took 295.32ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 140.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,289 INFO L158 Benchmark]: TraceAbstraction took 2587.85ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 139.9MB in the beginning and 162.1MB in the end (delta: -22.2MB). Peak memory consumption was 19.7MB. Max. memory is 8.0GB. [2022-12-13 09:59:32,290 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 201.3MB. Free memory was 177.7MB in the beginning and 177.6MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.12ms. Allocated memory is still 201.3MB. Free memory was 175.0MB in the beginning and 156.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.66ms. Allocated memory is still 201.3MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.31ms. Allocated memory is still 201.3MB. Free memory was 154.5MB in the beginning and 153.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 295.32ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 140.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2587.85ms. Allocated memory was 201.3MB in the beginning and 242.2MB in the end (delta: 40.9MB). Free memory was 139.9MB in the beginning and 162.1MB in the end (delta: -22.2MB). Peak memory consumption was 19.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 49 PlacesBefore, 16 PlacesAfterwards, 45 TransitionsBefore, 12 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 311, independent: 276, independent conditional: 276, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 237, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 237, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 237, independent: 202, independent conditional: 0, independent unconditional: 202, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 311, independent: 58, independent conditional: 58, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 237, unknown conditional: 237, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 218, Positive conditional cache size: 218, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, 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, 14 PlacesBefore, 14 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, 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, 15 PlacesBefore, 14 PlacesAfterwards, 8 TransitionsBefore, 7 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, 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): 15, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, 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 - 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, 67 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 09:59:32,307 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...