/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:14:59,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:14:59,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:14:59,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:14:59,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:14:59,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:14:59,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:14:59,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:14:59,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:14:59,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:14:59,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:14:59,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:14:59,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:14:59,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:14:59,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:14:59,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:14:59,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:14:59,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:14:59,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:14:59,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:14:59,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:14:59,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:14:59,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:14:59,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:14:59,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:14:59,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:14:59,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:14:59,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:14:59,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:14:59,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-11 19:14:59,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:14:59,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:14:59,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:14:59,230 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-NoLbe.epf [2022-12-11 19:14:59,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:14:59,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:14:59,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:14:59,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:14:59,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:14:59,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:14:59,259 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:14:59,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:14:59,259 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:14:59,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:14:59,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:14:59,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:14:59,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:14:59,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:14:59,262 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:14:59,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:14:59,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:14:59,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:14:59,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:14:59,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:14:59,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:14:59,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:14:59,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:14:59,551 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:14:59,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-12-11 19:15:00,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:15:00,715 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:15:00,715 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-12-11 19:15:00,722 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919fd5147/6d0f42f6f9f64339ac036f18c9e29379/FLAGe9104e4e6 [2022-12-11 19:15:00,733 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919fd5147/6d0f42f6f9f64339ac036f18c9e29379 [2022-12-11 19:15:00,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:15:00,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:15:00,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:00,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:15:00,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:15:00,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:00" (1/1) ... [2022-12-11 19:15:00,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749f8444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:00, skipping insertion in model container [2022-12-11 19:15:00,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:00" (1/1) ... [2022-12-11 19:15:00,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:15:00,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:15:00,901 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_42-traces-ex-mini_true.i[1091,1104] [2022-12-11 19:15:01,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:01,060 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:15:01,073 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_42-traces-ex-mini_true.i[1091,1104] [2022-12-11 19:15:01,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:01,134 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:15:01,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01 WrapperNode [2022-12-11 19:15:01,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:01,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:01,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:15:01,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:15:01,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,185 INFO L138 Inliner]: procedures = 162, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-11 19:15:01,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:01,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:15:01,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:15:01,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:15:01,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,213 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:15:01,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:15:01,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:15:01,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:15:01,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (1/1) ... [2022-12-11 19:15:01,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:15:01,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:15:01,250 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) [2022-12-11 19:15:01,256 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 [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 19:15:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 19:15:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:15:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:15:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:15:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:15:01,287 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:15:01,389 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:15:01,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:15:01,577 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:15:01,581 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:15:01,582 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:15:01,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:01 BoogieIcfgContainer [2022-12-11 19:15:01,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:15:01,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:15:01,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:15:01,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:15:01,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:15:00" (1/3) ... [2022-12-11 19:15:01,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33123be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:01, skipping insertion in model container [2022-12-11 19:15:01,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:01" (2/3) ... [2022-12-11 19:15:01,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33123be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:01, skipping insertion in model container [2022-12-11 19:15:01,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:01" (3/3) ... [2022-12-11 19:15:01,588 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2022-12-11 19:15:01,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:15:01,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:15:01,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:15:01,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 19:15:01,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2022-12-11 19:15:01,759 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-11 19:15:01,760 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:15:01,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-12-11 19:15:01,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2022-12-11 19:15:01,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2022-12-11 19:15:01,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:15:01,787 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=PETRI_NET, 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;@586d84d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:15:01,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-11 19:15:01,813 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-11 19:15:01,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:15:01,813 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:01,814 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:01,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:01,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1370569628, now seen corresponding path program 1 times [2022-12-11 19:15:01,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:01,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179757018] [2022-12-11 19:15:01,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:02,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179757018] [2022-12-11 19:15:02,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179757018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:02,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:02,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 19:15:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146078056] [2022-12-11 19:15:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:02,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 19:15:02,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 19:15:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 19:15:02,380 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2022-12-11 19:15:02,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2022-12-11 19:15:02,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:02,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2022-12-11 19:15:02,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:02,460 INFO L130 PetriNetUnfolder]: 8/95 cut-off events. [2022-12-11 19:15:02,461 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 19:15:02,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 95 events. 8/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2022-12-11 19:15:02,463 INFO L137 encePairwiseOnDemand]: 66/72 looper letters, 8 selfloop transitions, 3 changer transitions 9/72 dead transitions. [2022-12-11 19:15:02,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 187 flow [2022-12-11 19:15:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:15:02,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:15:02,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 449 transitions. [2022-12-11 19:15:02,478 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8908730158730159 [2022-12-11 19:15:02,479 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 123 flow. Second operand 7 states and 449 transitions. [2022-12-11 19:15:02,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 187 flow [2022-12-11 19:15:02,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-11 19:15:02,486 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 141 flow [2022-12-11 19:15:02,487 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2022-12-11 19:15:02,489 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 10 predicate places. [2022-12-11 19:15:02,490 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 141 flow [2022-12-11 19:15:02,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2022-12-11 19:15:02,490 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:02,490 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:02,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:15:02,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:02,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2028660063, now seen corresponding path program 1 times [2022-12-11 19:15:02,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:02,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073088538] [2022-12-11 19:15:02,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:02,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:02,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:02,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073088538] [2022-12-11 19:15:02,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073088538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:02,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:02,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 19:15:02,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253507572] [2022-12-11 19:15:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:02,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:15:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:02,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:15:02,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-11 19:15:02,883 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 72 [2022-12-11 19:15:02,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 141 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2022-12-11 19:15:02,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:02,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 72 [2022-12-11 19:15:02,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:03,009 INFO L130 PetriNetUnfolder]: 6/88 cut-off events. [2022-12-11 19:15:03,009 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-11 19:15:03,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 88 events. 6/88 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 2 based on Foata normal form. 4/92 useless extension candidates. Maximal degree in co-relation 140. Up to 15 conditions per place. [2022-12-11 19:15:03,010 INFO L137 encePairwiseOnDemand]: 66/72 looper letters, 21 selfloop transitions, 6 changer transitions 1/62 dead transitions. [2022-12-11 19:15:03,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 62 transitions, 201 flow [2022-12-11 19:15:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 19:15:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 19:15:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2022-12-11 19:15:03,013 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2022-12-11 19:15:03,013 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 141 flow. Second operand 6 states and 276 transitions. [2022-12-11 19:15:03,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 62 transitions, 201 flow [2022-12-11 19:15:03,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 62 transitions, 187 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-11 19:15:03,018 INFO L231 Difference]: Finished difference. Result has 69 places, 60 transitions, 139 flow [2022-12-11 19:15:03,022 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=139, PETRI_PLACES=69, PETRI_TRANSITIONS=60} [2022-12-11 19:15:03,023 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2022-12-11 19:15:03,023 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 60 transitions, 139 flow [2022-12-11 19:15:03,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2022-12-11 19:15:03,024 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:03,024 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:03,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:15:03,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 19:15:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1237762358, now seen corresponding path program 1 times [2022-12-11 19:15:03,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:03,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656183419] [2022-12-11 19:15:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:03,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:03,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:03,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656183419] [2022-12-11 19:15:03,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656183419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:03,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:03,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:15:03,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312292009] [2022-12-11 19:15:03,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:03,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:15:03,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:03,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:15:03,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:15:03,222 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 72 [2022-12-11 19:15:03,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 60 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-12-11 19:15:03,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:03,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 72 [2022-12-11 19:15:03,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:03,304 INFO L130 PetriNetUnfolder]: 5/76 cut-off events. [2022-12-11 19:15:03,304 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 19:15:03,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 76 events. 5/76 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 2 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 68. Up to 17 conditions per place. [2022-12-11 19:15:03,306 INFO L137 encePairwiseOnDemand]: 67/72 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2022-12-11 19:15:03,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 57 transitions, 177 flow [2022-12-11 19:15:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 19:15:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 19:15:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 258 transitions. [2022-12-11 19:15:03,308 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2022-12-11 19:15:03,308 INFO L175 Difference]: Start difference. First operand has 69 places, 60 transitions, 139 flow. Second operand 5 states and 258 transitions. [2022-12-11 19:15:03,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 57 transitions, 177 flow [2022-12-11 19:15:03,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 165 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-11 19:15:03,310 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2022-12-11 19:15:03,310 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2022-12-11 19:15:03,311 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places. [2022-12-11 19:15:03,311 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2022-12-11 19:15:03,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-12-11 19:15:03,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-11 19:15:03,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-11 19:15:03,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:15:03,314 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-11 19:15:03,321 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:15:03,321 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:15:03,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:15:03 BasicIcfg [2022-12-11 19:15:03,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:15:03,331 INFO L158 Benchmark]: Toolchain (without parser) took 2595.11ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 138.6MB in the beginning and 174.7MB in the end (delta: -36.1MB). Peak memory consumption was 22.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:03,331 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:15:03,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.30ms. Allocated memory is still 180.4MB. Free memory was 138.0MB in the beginning and 119.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-11 19:15:03,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.36ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 117.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:03,335 INFO L158 Benchmark]: Boogie Preprocessor took 28.64ms. Allocated memory is still 180.4MB. Free memory was 117.1MB in the beginning and 116.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 19:15:03,335 INFO L158 Benchmark]: RCFGBuilder took 367.81ms. Allocated memory is still 180.4MB. Free memory was 115.5MB in the beginning and 102.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 19:15:03,336 INFO L158 Benchmark]: TraceAbstraction took 1745.35ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 100.8MB in the beginning and 174.7MB in the end (delta: -73.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:15:03,340 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 180.4MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 395.30ms. Allocated memory is still 180.4MB. Free memory was 138.0MB in the beginning and 119.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.36ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 117.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.64ms. Allocated memory is still 180.4MB. Free memory was 117.1MB in the beginning and 116.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.81ms. Allocated memory is still 180.4MB. Free memory was 115.5MB in the beginning and 102.4MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1745.35ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 100.8MB in the beginning and 174.7MB in the end (delta: -73.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 85 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 17 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=1, InterpolantAutomatonStates: 18, 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, 0.9s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:15:03,366 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...