/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -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 [2023-01-28 02:10:16,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:10:16,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:10:16,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 02:10:16,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:10:16,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:10:16,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:10:16,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:10:16,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:10:16,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:10:16,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:10:16,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:10:16,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:10:16,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:10:16,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:10:16,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:10:16,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 02:10:16,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:10:16,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:10:16,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:10:16,200 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 [2023-01-28 02:10:16,216 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:10:16,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:10:16,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:10:16,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:10:16,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:10:16,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:10:16,221 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:10:16,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:10:16,221 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:10:16,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:10:16,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:10:16,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:10:16,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:10:16,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:10:16,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:10:16,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:10:16,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:10:16,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:10:16,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:10:16,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:10:16,394 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:10:16,394 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:10:16,395 INFO L432 ainManager$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 [2023-01-28 02:10:17,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:10:17,572 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:10:17,572 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-01-28 02:10:17,583 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dbb4aa53/5a3e28e6d0224f65812b06ea30fef576/FLAG8d5a9ed2e [2023-01-28 02:10:17,594 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dbb4aa53/5a3e28e6d0224f65812b06ea30fef576 [2023-01-28 02:10:17,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:10:17,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:10:17,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:10:17,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:10:17,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:10:17,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:17,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6254ac97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17, skipping insertion in model container [2023-01-28 02:10:17,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:10:17,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:10:17,744 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] [2023-01-28 02:10:17,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:10:17,887 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:10:17,897 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] [2023-01-28 02:10:17,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:10:17,951 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:10:17,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17 WrapperNode [2023-01-28 02:10:17,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:10:17,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:10:17,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:10:17,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:10:17,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:17,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,000 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-01-28 02:10:18,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:10:18,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:10:18,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:10:18,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:10:18,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:10:18,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:10:18,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:10:18,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:10:18,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (1/1) ... [2023-01-28 02:10:18,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:10:18,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:10:18,057 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) [2023-01-28 02:10:18,075 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 [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 02:10:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 02:10:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:10:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:10:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:10:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:10:18,090 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 02:10:18,212 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:10:18,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:10:18,328 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:10:18,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:10:18,333 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 02:10:18,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:10:18 BoogieIcfgContainer [2023-01-28 02:10:18,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:10:18,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:10:18,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:10:18,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:10:18,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:10:17" (1/3) ... [2023-01-28 02:10:18,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75126aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:10:18, skipping insertion in model container [2023-01-28 02:10:18,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:17" (2/3) ... [2023-01-28 02:10:18,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75126aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:10:18, skipping insertion in model container [2023-01-28 02:10:18,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:10:18" (3/3) ... [2023-01-28 02:10:18,340 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-01-28 02:10:18,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:10:18,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:10:18,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:10:18,386 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 02:10:18,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-01-28 02:10:18,440 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-01-28 02:10:18,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:18,443 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. [2023-01-28 02:10:18,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-01-28 02:10:18,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-01-28 02:10:18,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:10:18,459 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-28 02:10:18,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-28 02:10:18,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-01-28 02:10:18,474 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-01-28 02:10:18,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:18,474 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. [2023-01-28 02:10:18,475 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-01-28 02:10:20,317 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-01-28 02:10:20,317 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-01-28 02:10:20,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 02:10:20,336 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;@68a7fb3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:10:20,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 02:10:20,338 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-01-28 02:10:20,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:20,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:20,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 02:10:20,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:10:20,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-01-28 02:10:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:20,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215068267] [2023-01-28 02:10:20,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:20,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:20,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215068267] [2023-01-28 02:10:20,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215068267] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:20,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:20,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 02:10:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404826840] [2023-01-28 02:10:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:20,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 02:10:20,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 02:10:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 02:10:20,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 125 [2023-01-28 02:10:20,665 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) [2023-01-28 02:10:20,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:20,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 125 [2023-01-28 02:10:20,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:20,710 INFO L130 PetriNetUnfolder]: 14/54 cut-off events. [2023-01-28 02:10:20,710 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:20,710 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. [2023-01-28 02:10:20,711 INFO L137 encePairwiseOnDemand]: 120/125 looper letters, 10 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2023-01-28 02:10:20,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 65 flow [2023-01-28 02:10:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 02:10:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 02:10:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-01-28 02:10:20,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706666666666667 [2023-01-28 02:10:20,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-01-28 02:10:20,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-01-28 02:10:20,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:20,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-01-28 02:10:20,728 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) [2023-01-28 02:10:20,733 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) [2023-01-28 02:10:20,733 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) [2023-01-28 02:10:20,734 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 31 flow. Second operand 3 states and 214 transitions. [2023-01-28 02:10:20,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 65 flow [2023-01-28 02:10:20,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:10:20,738 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 46 flow [2023-01-28 02:10:20,739 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} [2023-01-28 02:10:20,742 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-01-28 02:10:20,743 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 46 flow [2023-01-28 02:10:20,743 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) [2023-01-28 02:10:20,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:20,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:20,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:10:20,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 02:10:20,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1253792415, now seen corresponding path program 1 times [2023-01-28 02:10:20,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:20,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380075004] [2023-01-28 02:10:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:10:20,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 02:10:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:10:20,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 02:10:20,813 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 02:10:20,814 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 02:10:20,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 02:10:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 02:10:20,816 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-28 02:10:20,822 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:10:20,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:10:20,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:10:20 BasicIcfg [2023-01-28 02:10:20,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:10:20,849 INFO L158 Benchmark]: Toolchain (without parser) took 3250.76ms. Allocated memory is still 341.8MB. Free memory was 300.8MB in the beginning and 213.6MB in the end (delta: 87.3MB). Peak memory consumption was 90.4MB. Max. memory is 16.0GB. [2023-01-28 02:10:20,853 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:10:20,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.33ms. Allocated memory is still 341.8MB. Free memory was 300.5MB in the beginning and 281.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 02:10:20,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.67ms. Allocated memory is still 341.8MB. Free memory was 281.6MB in the beginning and 279.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:10:20,855 INFO L158 Benchmark]: Boogie Preprocessor took 30.03ms. Allocated memory is still 341.8MB. Free memory was 279.5MB in the beginning and 278.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:10:20,856 INFO L158 Benchmark]: RCFGBuilder took 303.27ms. Allocated memory is still 341.8MB. Free memory was 278.3MB in the beginning and 265.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 02:10:20,857 INFO L158 Benchmark]: TraceAbstraction took 2513.11ms. Allocated memory is still 341.8MB. Free memory was 264.5MB in the beginning and 213.6MB in the end (delta: 50.9MB). Peak memory consumption was 52.7MB. Max. memory is 16.0GB. [2023-01-28 02:10:20,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 352.33ms. Allocated memory is still 341.8MB. Free memory was 300.5MB in the beginning and 281.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.67ms. Allocated memory is still 341.8MB. Free memory was 281.6MB in the beginning and 279.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.03ms. Allocated memory is still 341.8MB. Free memory was 279.5MB in the beginning and 278.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 303.27ms. Allocated memory is still 341.8MB. Free memory was 278.3MB in the beginning and 265.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2513.11ms. Allocated memory is still 341.8MB. Free memory was 264.5MB in the beginning and 213.6MB in the end (delta: 50.9MB). Peak memory consumption was 52.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 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: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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! [2023-01-28 02:10:20,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...