/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/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:34:35,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:34:35,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:34:35,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-27 19:34:35,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:34:35,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:34:35,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:34:35,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:34:35,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:34:35,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:34:35,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:34:35,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:34:35,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:34:35,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:34:35,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:34:35,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:34:35,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:34:35,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:34:35,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:34:35,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:34:35,471 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 19:34:35,500 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:34:35,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:34:35,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:34:35,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:34:35,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:34:35,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:34:35,502 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:34:35,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:34:35,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:34:35,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:34:35,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:34:35,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:34:35,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:34:35,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:34:35,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:34:35,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:34:35,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:34:35,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:34:35,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:34:35,864 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:34:35,865 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:34:35,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-01-27 19:34:37,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:34:37,720 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:34:37,720 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-01-27 19:34:37,736 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bab5e740/7d1b0df2f7ff4d30afd51a0fd52a2e85/FLAG55ad1bea0 [2023-01-27 19:34:37,748 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bab5e740/7d1b0df2f7ff4d30afd51a0fd52a2e85 [2023-01-27 19:34:37,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:34:37,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:34:37,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:34:37,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:34:37,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:34:37,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:34:37" (1/1) ... [2023-01-27 19:34:37,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e665d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:37, skipping insertion in model container [2023-01-27 19:34:37,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:34:37" (1/1) ... [2023-01-27 19:34:37,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:34:37,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:34:37,952 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-01-27 19:34:38,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:34:38,148 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:34:38,158 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-01-27 19:34:38,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:34:38,257 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:34:38,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38 WrapperNode [2023-01-27 19:34:38,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:34:38,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:34:38,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:34:38,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:34:38,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,346 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-01-27 19:34:38,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:34:38,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:34:38,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:34:38,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:34:38,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,389 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:34:38,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:34:38,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:34:38,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:34:38,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (1/1) ... [2023-01-27 19:34:38,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:34:38,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:34:38,462 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 19:34:38,482 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 19:34:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:34:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:34:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:34:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:34:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:34:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:34:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:34:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:34:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:34:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:34:38,511 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 19:34:38,688 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:34:38,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:34:38,911 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:34:38,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:34:38,916 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:34:38,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:34:38 BoogieIcfgContainer [2023-01-27 19:34:38,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:34:38,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:34:38,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:34:38,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:34:38,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:34:37" (1/3) ... [2023-01-27 19:34:38,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614e9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:34:38, skipping insertion in model container [2023-01-27 19:34:38,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:38" (2/3) ... [2023-01-27 19:34:38,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614e9972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:34:38, skipping insertion in model container [2023-01-27 19:34:38,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:34:38" (3/3) ... [2023-01-27 19:34:38,923 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-01-27 19:34:38,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:34:38,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:34:38,946 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:34:39,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:34:39,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-01-27 19:34:39,220 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-01-27 19:34:39,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:39,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-01-27 19:34:39,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-01-27 19:34:39,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:39,236 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:34:39,253 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:39,256 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:39,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:39,301 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-01-27 19:34:39,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:39,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 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. 0/61 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-27 19:34:39,303 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-01-27 19:34:41,943 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-01-27 19:34:41,943 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-01-27 19:34:41,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:34:41,963 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;@38fbccf8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:34:41,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:34:41,965 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-01-27 19:34:41,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:41,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:34:41,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 19:34:41,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:34:41,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:34:41,986 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-01-27 19:34:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:34:41,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344860287] [2023-01-27 19:34:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:34:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:34:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:34:42,431 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 19:34:42,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:34:42,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344860287] [2023-01-27 19:34:42,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344860287] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:34:42,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:34:42,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 19:34:42,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559894842] [2023-01-27 19:34:42,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:34:42,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:34:42,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:34:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:34:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:34:42,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 125 [2023-01-27 19:34:42,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 19:34:42,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:34:42,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 125 [2023-01-27 19:34:42,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:34:42,563 INFO L130 PetriNetUnfolder]: 14/54 cut-off events. [2023-01-27 19:34:42,564 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:42,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 54 events. 14/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 161 event pairs, 6 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 95. Up to 27 conditions per place. [2023-01-27 19:34:42,581 INFO L137 encePairwiseOnDemand]: 120/125 looper letters, 10 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2023-01-27 19:34:42,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 65 flow [2023-01-27 19:34:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:34:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:34:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-01-27 19:34:42,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706666666666667 [2023-01-27 19:34:42,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-01-27 19:34:42,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-01-27 19:34:42,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:34:42,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-01-27 19:34:42,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 19:34:42,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:34:42,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:34:42,613 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 31 flow. Second operand 3 states and 214 transitions. [2023-01-27 19:34:42,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 65 flow [2023-01-27 19:34:42,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:34:42,615 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 46 flow [2023-01-27 19:34:42,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-01-27 19:34:42,633 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-01-27 19:34:42,633 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 46 flow [2023-01-27 19:34:42,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 19:34:42,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:34:42,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:34:42,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:34:42,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:34:42,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:34:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1253792415, now seen corresponding path program 1 times [2023-01-27 19:34:42,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:34:42,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396751190] [2023-01-27 19:34:42,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:34:42,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:34:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:34:42,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:34:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:34:42,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:34:42,836 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:34:42,837 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:34:42,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:34:42,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 19:34:42,840 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-27 19:34:42,851 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:34:42,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:34:42,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:34:42 BasicIcfg [2023-01-27 19:34:42,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:34:42,901 INFO L158 Benchmark]: Toolchain (without parser) took 5150.24ms. Allocated memory is still 457.2MB. Free memory was 406.4MB in the beginning and 215.2MB in the end (delta: 191.2MB). Peak memory consumption was 192.2MB. Max. memory is 16.0GB. [2023-01-27 19:34:42,909 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 320.9MB. Free memory is still 270.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:34:42,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.41ms. Allocated memory is still 457.2MB. Free memory was 406.4MB in the beginning and 387.1MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-27 19:34:42,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.34ms. Allocated memory is still 457.2MB. Free memory was 387.1MB in the beginning and 385.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:34:42,917 INFO L158 Benchmark]: Boogie Preprocessor took 44.17ms. Allocated memory is still 457.2MB. Free memory was 385.4MB in the beginning and 383.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:34:42,917 INFO L158 Benchmark]: RCFGBuilder took 526.22ms. Allocated memory is still 457.2MB. Free memory was 383.9MB in the beginning and 370.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:34:42,917 INFO L158 Benchmark]: TraceAbstraction took 3981.56ms. Allocated memory is still 457.2MB. Free memory was 370.0MB in the beginning and 215.2MB in the end (delta: 154.7MB). Peak memory consumption was 154.5MB. Max. memory is 16.0GB. [2023-01-27 19:34:42,918 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 320.9MB. Free memory is still 270.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 520.41ms. Allocated memory is still 457.2MB. Free memory was 406.4MB in the beginning and 387.1MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.34ms. Allocated memory is still 457.2MB. Free memory was 387.1MB in the beginning and 385.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 44.17ms. Allocated memory is still 457.2MB. Free memory was 385.4MB in the beginning and 383.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 526.22ms. Allocated memory is still 457.2MB. Free memory was 383.9MB in the beginning and 370.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3981.56ms. Allocated memory is still 457.2MB. Free memory was 370.0MB in the beginning and 215.2MB in the end (delta: 154.7MB). Peak memory consumption was 154.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 65 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 1016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 449, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 449, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 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: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2023-01-27 19:34:42,948 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...