/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:59:58,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:59:58,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:59:58,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:59:58,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:59:58,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:59:58,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:59:58,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:59:58,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:59:58,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:59:58,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:59:58,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:59:58,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:59:58,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:59:58,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:59:58,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:59:58,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:59:58,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:59:58,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:59:58,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:59:58,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:59:58,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:59:58,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:59:58,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:59:58,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 09:59:58,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:59:58,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:59:58,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:59:58,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-13 09:59:59,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:59:59,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:59:59,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:59:59,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:59:59,012 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:59:59,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:59:59,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:59:59,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:59:59,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:59:59,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:59:59,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:59:59,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:59:59,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:59:59,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:59:59,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:59:59,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:59:59,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:59:59,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:59:59,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:59:59,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:59:59,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:59:59,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:59:59,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:59:59,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:59:59,367 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:59:59,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-13 10:00:00,478 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:00:00,753 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:00:00,754 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-13 10:00:00,762 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fc3841a7/aa89e459b64f4819b8fbdedd7976c2e5/FLAGbf4f72e30 [2022-12-13 10:00:00,776 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fc3841a7/aa89e459b64f4819b8fbdedd7976c2e5 [2022-12-13 10:00:00,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:00:00,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 10:00:00,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:00:00,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:00:00,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:00:00,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:00:00" (1/1) ... [2022-12-13 10:00:00,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bed55b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:00, skipping insertion in model container [2022-12-13 10:00:00,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:00:00" (1/1) ... [2022-12-13 10:00:00,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:00:00,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:00:00,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-13 10:00:01,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:00:01,118 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:00:01,130 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-13 10:00:01,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:00:01,194 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:00:01,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01 WrapperNode [2022-12-13 10:00:01,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:00:01,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:00:01,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:00:01,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:00:01,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,246 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 10:00:01,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:00:01,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:00:01,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:00:01,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:00:01,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:00:01,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:00:01,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:00:01,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:00:01,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (1/1) ... [2022-12-13 10:00:01,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:00:01,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 10:00:01,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 10:00:01,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 10:00:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 10:00:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:00:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 10:00:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 10:00:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 10:00:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 10:00:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:00:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:00:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:00:01,359 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 10:00:01,499 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 10:00:01,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:00:01,624 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 10:00:01,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:00:01,629 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 10:00:01,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:00:01 BoogieIcfgContainer [2022-12-13 10:00:01,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:00:01,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 10:00:01,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 10:00:01,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 10:00:01,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:00:00" (1/3) ... [2022-12-13 10:00:01,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4d230f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:00:01, skipping insertion in model container [2022-12-13 10:00:01,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:00:01" (2/3) ... [2022-12-13 10:00:01,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4d230f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:00:01, skipping insertion in model container [2022-12-13 10:00:01,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:00:01" (3/3) ... [2022-12-13 10:00:01,638 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-13 10:00:01,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 10:00:01,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 10:00:01,658 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 10:00:01,708 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 10:00:01,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-13 10:00:01,785 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-13 10:00:01,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 10:00:01,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-13 10:00:01,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-13 10:00:01,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-13 10:00:01,795 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 10:00:01,822 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-13 10:00:01,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 65 flow [2022-12-13 10:00:01,848 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-13 10:00:01,848 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 10:00:01,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 10:00:01,850 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-13 10:00:01,850 INFO L226 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-13 10:00:03,248 INFO L241 LiptonReduction]: Total number of compositions: 27 [2022-12-13 10:00:03,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 10:00:03,274 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b0ea8c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 10:00:03,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 10:00:03,278 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 10:00:03,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 10:00:03,278 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 10:00:03,279 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 10:00:03,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:00:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:00:03,283 INFO L85 PathProgramCache]: Analyzing trace with hash 161610, now seen corresponding path program 1 times [2022-12-13 10:00:03,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:00:03,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621688914] [2022-12-13 10:00:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:00:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:00:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:00:03,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:00:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:00:03,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:00:03,425 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 10:00:03,426 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 10:00:03,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 10:00:03,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 10:00:03,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 10:00:03,428 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 10:00:03,439 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 10:00:03,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 10:00:03,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:00:03 BasicIcfg [2022-12-13 10:00:03,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 10:00:03,457 INFO L158 Benchmark]: Toolchain (without parser) took 2675.24ms. Allocated memory is still 197.1MB. Free memory was 171.9MB in the beginning and 95.3MB in the end (delta: 76.6MB). Peak memory consumption was 77.4MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,458 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 174.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 10:00:03,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.64ms. Allocated memory is still 197.1MB. Free memory was 171.9MB in the beginning and 153.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.46ms. Allocated memory is still 197.1MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,462 INFO L158 Benchmark]: Boogie Preprocessor took 35.63ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 150.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,463 INFO L158 Benchmark]: RCFGBuilder took 347.29ms. Allocated memory is still 197.1MB. Free memory was 150.3MB in the beginning and 139.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,464 INFO L158 Benchmark]: TraceAbstraction took 1822.96ms. Allocated memory is still 197.1MB. Free memory was 138.4MB in the beginning and 95.8MB in the end (delta: 42.7MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. [2022-12-13 10:00:03,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 174.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 412.64ms. Allocated memory is still 197.1MB. Free memory was 171.9MB in the beginning and 153.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.46ms. Allocated memory is still 197.1MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.63ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 150.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 347.29ms. Allocated memory is still 197.1MB. Free memory was 150.3MB in the beginning and 139.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1822.96ms. Allocated memory is still 197.1MB. Free memory was 138.4MB in the beginning and 95.8MB in the end (delta: 42.7MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 35 PlacesBefore, 14 PlacesAfterwards, 31 TransitionsBefore, 10 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, independent: 152, independent conditional: 152, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, independent: 57, independent conditional: 57, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 95, unknown conditional: 95, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 95, Positive conditional cache size: 95, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 52 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: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-13 10:00:03,490 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...