/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:17:16,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:17:16,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:17:16,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:17:16,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:17:16,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:17:16,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:17:16,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:17:16,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:17:16,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:17:16,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:17:16,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:17:16,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:17:16,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:17:16,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:17:16,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:17:16,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:17:16,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:17:16,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:17:16,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:17:16,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:17:16,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:17:16,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:17:16,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:17:16,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 18:17:16,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:17:16,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:17:16,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:17:16,913 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-VariableLbe.epf [2023-01-27 18:17:16,934 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:17:16,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:17:16,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:17:16,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:17:16,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:17:16,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:17:16,935 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:17:16,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:17:16,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:17:16,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:17:16,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:17:16,937 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:17:17,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:17:17,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:17:17,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:17:17,130 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:17:17,131 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:17:17,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-27 18:17:18,097 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:17:18,263 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:17:18,264 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-27 18:17:18,279 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b4eec0a/60e7e9f62b9f47d2b9c80da4c33f6111/FLAGfb8b16f1e [2023-01-27 18:17:18,290 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b4eec0a/60e7e9f62b9f47d2b9c80da4c33f6111 [2023-01-27 18:17:18,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:17:18,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:17:18,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:17:18,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:17:18,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:17:18,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfb477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18, skipping insertion in model container [2023-01-27 18:17:18,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:17:18,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:17:18,438 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-01-27 18:17:18,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:17:18,575 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:17:18,589 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-01-27 18:17:18,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:17:18,632 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:17:18,632 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:17:18,637 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:17:18,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18 WrapperNode [2023-01-27 18:17:18,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:17:18,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:17:18,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:17:18,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:17:18,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,686 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-01-27 18:17:18,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:17:18,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:17:18,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:17:18,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:17:18,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:17:18,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:17:18,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:17:18,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:17:18,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (1/1) ... [2023-01-27 18:17:18,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:17:18,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:17:18,741 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) [2023-01-27 18:17:18,752 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 [2023-01-27 18:17:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:17:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:17:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:17:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:17:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:17:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-27 18:17:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-27 18:17:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-27 18:17:18,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-27 18:17:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:17:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:17:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:17:18,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:17:18,776 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:17:18,911 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:17:18,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:17:19,057 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:17:19,061 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:17:19,061 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:17:19,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:17:19 BoogieIcfgContainer [2023-01-27 18:17:19,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:17:19,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:17:19,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:17:19,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:17:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:17:18" (1/3) ... [2023-01-27 18:17:19,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33f64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:17:19, skipping insertion in model container [2023-01-27 18:17:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:17:18" (2/3) ... [2023-01-27 18:17:19,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33f64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:17:19, skipping insertion in model container [2023-01-27 18:17:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:17:19" (3/3) ... [2023-01-27 18:17:19,068 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-27 18:17:19,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:17:19,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 18:17:19,083 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:17:19,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 18:17:19,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2023-01-27 18:17:19,199 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-01-27 18:17:19,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:17:19,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-01-27 18:17:19,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2023-01-27 18:17:19,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2023-01-27 18:17:19,210 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:17:19,217 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2023-01-27 18:17:19,220 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2023-01-27 18:17:19,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2023-01-27 18:17:19,247 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2023-01-27 18:17:19,247 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:17:19,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-01-27 18:17:19,249 INFO L119 LiptonReduction]: Number of co-enabled transitions 540 [2023-01-27 18:17:20,725 INFO L134 LiptonReduction]: Checked pairs total: 1032 [2023-01-27 18:17:20,725 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-01-27 18:17:20,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:17:20,740 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;@23d95968, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:17:20,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 18:17:20,743 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-01-27 18:17:20,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:17:20,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:20,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:17:20,744 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:20,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:20,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1625176260, now seen corresponding path program 1 times [2023-01-27 18:17:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:20,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022421170] [2023-01-27 18:17:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022421170] [2023-01-27 18:17:21,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022421170] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:21,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:17:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047054498] [2023-01-27 18:17:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:21,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:17:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:17:21,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:17:21,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 116 [2023-01-27 18:17:21,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-01-27 18:17:21,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:21,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 116 [2023-01-27 18:17:21,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:21,190 INFO L130 PetriNetUnfolder]: 30/73 cut-off events. [2023-01-27 18:17:21,190 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:17:21,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 73 events. 30/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 219 event pairs, 12 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 138. Up to 59 conditions per place. [2023-01-27 18:17:21,192 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 12 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-01-27 18:17:21,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 17 transitions, 73 flow [2023-01-27 18:17:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:17:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:17:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2023-01-27 18:17:21,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2023-01-27 18:17:21,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:21,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2023-01-27 18:17:21,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-01-27 18:17:21,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-01-27 18:17:21,213 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 30 flow. Second operand 3 states and 190 transitions. [2023-01-27 18:17:21,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 17 transitions, 73 flow [2023-01-27 18:17:21,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:17:21,216 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 47 flow [2023-01-27 18:17:21,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-01-27 18:17:21,222 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2023-01-27 18:17:21,222 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2023-01-27 18:17:21,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-01-27 18:17:21,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:21,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:17:21,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:17:21,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:21,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1159142860, now seen corresponding path program 1 times [2023-01-27 18:17:21,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:21,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289098954] [2023-01-27 18:17:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:21,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289098954] [2023-01-27 18:17:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289098954] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:21,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:21,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:17:21,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317340444] [2023-01-27 18:17:21,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:21,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:17:21,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:17:21,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 18:17:21,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 116 [2023-01-27 18:17:21,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-01-27 18:17:21,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:21,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 116 [2023-01-27 18:17:21,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:21,468 INFO L130 PetriNetUnfolder]: 48/110 cut-off events. [2023-01-27 18:17:21,468 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-01-27 18:17:21,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 110 events. 48/110 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 422 event pairs, 8 based on Foata normal form. 8/117 useless extension candidates. Maximal degree in co-relation 252. Up to 43 conditions per place. [2023-01-27 18:17:21,470 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 16 selfloop transitions, 6 changer transitions 1/24 dead transitions. [2023-01-27 18:17:21,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 117 flow [2023-01-27 18:17:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:17:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:17:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 304 transitions. [2023-01-27 18:17:21,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241379310344828 [2023-01-27 18:17:21,475 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 304 transitions. [2023-01-27 18:17:21,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 304 transitions. [2023-01-27 18:17:21,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:21,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 304 transitions. [2023-01-27 18:17:21,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 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) [2023-01-27 18:17:21,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2023-01-27 18:17:21,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2023-01-27 18:17:21,480 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 5 states and 304 transitions. [2023-01-27 18:17:21,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 117 flow [2023-01-27 18:17:21,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:17:21,481 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 78 flow [2023-01-27 18:17:21,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-01-27 18:17:21,482 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 7 predicate places. [2023-01-27 18:17:21,483 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 78 flow [2023-01-27 18:17:21,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-01-27 18:17:21,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:21,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:17:21,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:17:21,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:21,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1159142612, now seen corresponding path program 1 times [2023-01-27 18:17:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722780234] [2023-01-27 18:17:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:21,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722780234] [2023-01-27 18:17:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722780234] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:21,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:21,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:17:21,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413385788] [2023-01-27 18:17:21,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:21,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:17:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:17:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-27 18:17:21,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 116 [2023-01-27 18:17:21,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2023-01-27 18:17:21,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:21,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 116 [2023-01-27 18:17:21,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:21,641 INFO L130 PetriNetUnfolder]: 30/81 cut-off events. [2023-01-27 18:17:21,641 INFO L131 PetriNetUnfolder]: For 65/66 co-relation queries the response was YES. [2023-01-27 18:17:21,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 81 events. 30/81 cut-off events. For 65/66 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 280 event pairs, 12 based on Foata normal form. 3/84 useless extension candidates. Maximal degree in co-relation 214. Up to 57 conditions per place. [2023-01-27 18:17:21,642 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 13 selfloop transitions, 3 changer transitions 2/20 dead transitions. [2023-01-27 18:17:21,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 122 flow [2023-01-27 18:17:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:17:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:17:21,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2023-01-27 18:17:21,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2023-01-27 18:17:21,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:21,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2023-01-27 18:17:21,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2023-01-27 18:17:21,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-01-27 18:17:21,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2023-01-27 18:17:21,646 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 78 flow. Second operand 3 states and 190 transitions. [2023-01-27 18:17:21,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 122 flow [2023-01-27 18:17:21,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 20 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:17:21,647 INFO L231 Difference]: Finished difference. Result has 28 places, 14 transitions, 73 flow [2023-01-27 18:17:21,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2023-01-27 18:17:21,648 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2023-01-27 18:17:21,648 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 14 transitions, 73 flow [2023-01-27 18:17:21,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2023-01-27 18:17:21,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:21,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:17:21,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:17:21,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:21,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:21,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1573689412, now seen corresponding path program 1 times [2023-01-27 18:17:21,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:21,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381732523] [2023-01-27 18:17:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381732523] [2023-01-27 18:17:21,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381732523] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:21,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:21,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:17:21,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638505046] [2023-01-27 18:17:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:21,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:17:21,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:21,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:17:21,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 18:17:21,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 116 [2023-01-27 18:17:21,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 14 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2023-01-27 18:17:21,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:21,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 116 [2023-01-27 18:17:21,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:21,780 INFO L130 PetriNetUnfolder]: 45/105 cut-off events. [2023-01-27 18:17:21,780 INFO L131 PetriNetUnfolder]: For 157/157 co-relation queries the response was YES. [2023-01-27 18:17:21,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 105 events. 45/105 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 362 event pairs, 12 based on Foata normal form. 6/110 useless extension candidates. Maximal degree in co-relation 290. Up to 48 conditions per place. [2023-01-27 18:17:21,783 INFO L137 encePairwiseOnDemand]: 111/116 looper letters, 18 selfloop transitions, 4 changer transitions 5/28 dead transitions. [2023-01-27 18:17:21,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 173 flow [2023-01-27 18:17:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:17:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:17:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 308 transitions. [2023-01-27 18:17:21,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2023-01-27 18:17:21,785 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 308 transitions. [2023-01-27 18:17:21,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 308 transitions. [2023-01-27 18:17:21,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:21,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 308 transitions. [2023-01-27 18:17:21,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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) [2023-01-27 18:17:21,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2023-01-27 18:17:21,793 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2023-01-27 18:17:21,794 INFO L175 Difference]: Start difference. First operand has 28 places, 14 transitions, 73 flow. Second operand 5 states and 308 transitions. [2023-01-27 18:17:21,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 173 flow [2023-01-27 18:17:21,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 155 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-01-27 18:17:21,797 INFO L231 Difference]: Finished difference. Result has 29 places, 14 transitions, 79 flow [2023-01-27 18:17:21,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=14} [2023-01-27 18:17:21,798 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 10 predicate places. [2023-01-27 18:17:21,798 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 14 transitions, 79 flow [2023-01-27 18:17:21,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2023-01-27 18:17:21,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:21,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:17:21,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:17:21,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:21,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1539707572, now seen corresponding path program 1 times [2023-01-27 18:17:21,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:21,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560616520] [2023-01-27 18:17:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:21,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:21,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560616520] [2023-01-27 18:17:21,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560616520] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:21,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:21,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:17:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860626105] [2023-01-27 18:17:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:21,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:17:21,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:21,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:17:21,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:17:21,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 116 [2023-01-27 18:17:21,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 14 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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) [2023-01-27 18:17:21,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:21,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 116 [2023-01-27 18:17:21,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:21,929 INFO L130 PetriNetUnfolder]: 33/81 cut-off events. [2023-01-27 18:17:21,929 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2023-01-27 18:17:21,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 81 events. 33/81 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 234 event pairs, 13 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 247. Up to 30 conditions per place. [2023-01-27 18:17:21,930 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 11 selfloop transitions, 3 changer transitions 4/19 dead transitions. [2023-01-27 18:17:21,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 19 transitions, 125 flow [2023-01-27 18:17:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:17:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:17:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 243 transitions. [2023-01-27 18:17:21,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5237068965517241 [2023-01-27 18:17:21,931 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 243 transitions. [2023-01-27 18:17:21,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 243 transitions. [2023-01-27 18:17:21,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:21,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 243 transitions. [2023-01-27 18:17:21,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2023-01-27 18:17:21,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2023-01-27 18:17:21,933 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2023-01-27 18:17:21,933 INFO L175 Difference]: Start difference. First operand has 29 places, 14 transitions, 79 flow. Second operand 4 states and 243 transitions. [2023-01-27 18:17:21,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 19 transitions, 125 flow [2023-01-27 18:17:21,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 110 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-01-27 18:17:21,936 INFO L231 Difference]: Finished difference. Result has 28 places, 12 transitions, 64 flow [2023-01-27 18:17:21,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=28, PETRI_TRANSITIONS=12} [2023-01-27 18:17:21,937 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2023-01-27 18:17:21,937 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 12 transitions, 64 flow [2023-01-27 18:17:21,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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) [2023-01-27 18:17:21,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:17:21,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:17:21,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:17:21,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 18:17:21,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:17:21,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1525175578, now seen corresponding path program 1 times [2023-01-27 18:17:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:17:21,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684645626] [2023-01-27 18:17:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:17:21,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:17:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:17:22,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:17:22,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:17:22,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684645626] [2023-01-27 18:17:22,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684645626] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:17:22,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:17:22,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:17:22,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789843581] [2023-01-27 18:17:22,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:17:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:17:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:17:22,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:17:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:17:22,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 116 [2023-01-27 18:17:22,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 12 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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) [2023-01-27 18:17:22,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:17:22,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 116 [2023-01-27 18:17:22,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:17:22,069 INFO L130 PetriNetUnfolder]: 14/36 cut-off events. [2023-01-27 18:17:22,070 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2023-01-27 18:17:22,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 36 events. 14/36 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 6 based on Foata normal form. 6/40 useless extension candidates. Maximal degree in co-relation 100. Up to 19 conditions per place. [2023-01-27 18:17:22,070 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-01-27 18:17:22,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 13 transitions, 80 flow [2023-01-27 18:17:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:17:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:17:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2023-01-27 18:17:22,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5129310344827587 [2023-01-27 18:17:22,071 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 238 transitions. [2023-01-27 18:17:22,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 238 transitions. [2023-01-27 18:17:22,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:17:22,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 238 transitions. [2023-01-27 18:17:22,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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) [2023-01-27 18:17:22,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2023-01-27 18:17:22,072 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2023-01-27 18:17:22,072 INFO L175 Difference]: Start difference. First operand has 28 places, 12 transitions, 64 flow. Second operand 4 states and 238 transitions. [2023-01-27 18:17:22,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 13 transitions, 80 flow [2023-01-27 18:17:22,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 54 flow, removed 2 selfloop flow, removed 11 redundant places. [2023-01-27 18:17:22,073 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-01-27 18:17:22,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, 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=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-01-27 18:17:22,073 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2023-01-27 18:17:22,074 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-01-27 18:17:22,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 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) [2023-01-27 18:17:22,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 18:17:22,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 18:17:22,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-27 18:17:22,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 18:17:22,076 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-01-27 18:17:22,078 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:17:22,078 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:17:22,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:17:22 BasicIcfg [2023-01-27 18:17:22,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:17:22,081 INFO L158 Benchmark]: Toolchain (without parser) took 3787.32ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 320.3MB in the beginning and 401.4MB in the end (delta: -81.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:17:22,081 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:17:22,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.32ms. Allocated memory is still 362.8MB. Free memory was 320.2MB in the beginning and 300.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-27 18:17:22,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.26ms. Allocated memory is still 362.8MB. Free memory was 300.2MB in the beginning and 298.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:17:22,082 INFO L158 Benchmark]: Boogie Preprocessor took 29.71ms. Allocated memory is still 362.8MB. Free memory was 298.1MB in the beginning and 296.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:17:22,082 INFO L158 Benchmark]: RCFGBuilder took 345.05ms. Allocated memory is still 362.8MB. Free memory was 296.7MB in the beginning and 284.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 18:17:22,082 INFO L158 Benchmark]: TraceAbstraction took 3016.13ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 283.5MB in the beginning and 401.4MB in the end (delta: -117.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:17:22,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 341.32ms. Allocated memory is still 362.8MB. Free memory was 320.2MB in the beginning and 300.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.26ms. Allocated memory is still 362.8MB. Free memory was 300.2MB in the beginning and 298.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.71ms. Allocated memory is still 362.8MB. Free memory was 298.1MB in the beginning and 296.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 345.05ms. Allocated memory is still 362.8MB. Free memory was 296.7MB in the beginning and 284.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3016.13ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 283.5MB in the beginning and 401.4MB in the end (delta: -117.9MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 62 PlacesBefore, 19 PlacesAfterwards, 56 TransitionsBefore, 12 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 1032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 640, independent: 575, independent conditional: 0, independent unconditional: 575, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 296, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 640, independent: 294, independent conditional: 0, independent unconditional: 294, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 296, unknown conditional: 0, unknown unconditional: 296] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 6 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2023-01-27 18:17:22,120 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...