./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 21:00:48,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:00:48,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:00:48,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:00:48,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:00:48,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:00:48,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:00:48,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:00:48,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:00:48,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:00:48,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:00:48,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:00:48,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:00:48,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:00:48,904 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:00:48,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:00:48,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:00:48,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:00:48,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:00:48,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:00:48,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:00:48,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:00:48,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:00:48,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:00:48,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:00:48,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:00:48,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:00:48,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:00:48,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:00:48,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:00:48,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:00:48,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:00:48,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:48,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:00:48,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:00:48,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:00:48,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:00:48,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:00:48,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:00:48,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:00:48,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:00:48,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:00:48,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:00:48,912 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:00:49,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:00:49,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:00:49,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:00:49,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:00:49,168 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:00:49,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-03 21:00:50,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:00:50,434 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:00:50,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-03 21:00:50,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96da6ef66/3983447cebbb444897bb7dc51197cacd/FLAGcea1eff10 [2024-06-03 21:00:50,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96da6ef66/3983447cebbb444897bb7dc51197cacd [2024-06-03 21:00:50,461 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:00:50,462 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:00:50,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml [2024-06-03 21:00:50,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:00:50,537 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:00:50,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:50,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:00:50,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:00:50,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:50" (1/2) ... [2024-06-03 21:00:50,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c91e41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:50, skipping insertion in model container [2024-06-03 21:00:50,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:50" (1/2) ... [2024-06-03 21:00:50,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@929135e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:50, skipping insertion in model container [2024-06-03 21:00:50,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:50" (2/2) ... [2024-06-03 21:00:50,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c91e41e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50, skipping insertion in model container [2024-06-03 21:00:50,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:50" (2/2) ... [2024-06-03 21:00:50,547 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:00:50,563 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:00:50,564 INFO L97 edCorrectnessWitness]: Location invariant before [L160-L160] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-03 21:00:50,564 INFO L97 edCorrectnessWitness]: Location invariant before [L157-L157] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-03 21:00:50,564 INFO L97 edCorrectnessWitness]: Location invariant before [L158-L158] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-03 21:00:50,565 INFO L97 edCorrectnessWitness]: Location invariant before [L161-L161] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-03 21:00:50,565 INFO L97 edCorrectnessWitness]: Location invariant before [L159-L159] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-03 21:00:50,565 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:00:50,565 INFO L106 edCorrectnessWitness]: ghost_update [L156-L156] multithreaded = 1; [2024-06-03 21:00:50,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:00:50,705 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:50,712 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:00:50,772 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:50,785 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:00:50,785 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50 WrapperNode [2024-06-03 21:00:50,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:50,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:50,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:00:50,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:00:50,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,843 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 227 [2024-06-03 21:00:50,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:50,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:00:50,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:00:50,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:00:50,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,876 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-03 21:00:50,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:00:50,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:00:50,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:00:50,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:00:50,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (1/1) ... [2024-06-03 21:00:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:50,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:00:50,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-03 21:00:50,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-03 21:00:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:00:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:00:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:00:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:00:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:00:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 21:00:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 21:00:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-03 21:00:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-03 21:00:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:00:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-03 21:00:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-03 21:00:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:00:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:00:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:00:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:00:50,958 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 21:00:51,041 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:00:51,043 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:00:51,421 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:00:51,421 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:00:51,637 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:00:51,637 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 21:00:51,638 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:51 BoogieIcfgContainer [2024-06-03 21:00:51,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:00:51,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:00:51,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:00:51,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:00:51,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:00:50" (1/4) ... [2024-06-03 21:00:51,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147979e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:00:51, skipping insertion in model container [2024-06-03 21:00:51,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:50" (2/4) ... [2024-06-03 21:00:51,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147979e3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:51, skipping insertion in model container [2024-06-03 21:00:51,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:50" (3/4) ... [2024-06-03 21:00:51,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147979e3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:51, skipping insertion in model container [2024-06-03 21:00:51,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:51" (4/4) ... [2024-06-03 21:00:51,650 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-06-03 21:00:51,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:00:51,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-03 21:00:51,667 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:00:51,718 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-03 21:00:51,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 60 transitions, 155 flow [2024-06-03 21:00:51,808 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2024-06-03 21:00:51,809 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-03 21:00:51,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 55 events. 0/55 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-03 21:00:51,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 60 transitions, 155 flow [2024-06-03 21:00:51,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 48 transitions, 111 flow [2024-06-03 21:00:51,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:00:51,837 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=LoopHeads, 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;@629e5be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:00:51,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-06-03 21:00:51,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:00:51,841 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 21:00:51,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:00:51,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:51,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 21:00:51,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:00:51,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:51,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1185943010, now seen corresponding path program 1 times [2024-06-03 21:00:51,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:51,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351485981] [2024-06-03 21:00:51,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:51,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:52,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351485981] [2024-06-03 21:00:52,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351485981] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:52,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:52,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:00:52,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071431128] [2024-06-03 21:00:52,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:52,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:00:52,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:00:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:00:52,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 60 [2024-06-03 21:00:52,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-06-03 21:00:52,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:52,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 60 [2024-06-03 21:00:52,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:58,650 INFO L124 PetriNetUnfolderBase]: 87503/111525 cut-off events. [2024-06-03 21:00:58,650 INFO L125 PetriNetUnfolderBase]: For 1159/1159 co-relation queries the response was YES. [2024-06-03 21:00:58,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225645 conditions, 111525 events. 87503/111525 cut-off events. For 1159/1159 co-relation queries the response was YES. Maximal size of possible extension queue 2971. Compared 600404 event pairs, 28664 based on Foata normal form. 405/110833 useless extension candidates. Maximal degree in co-relation 225628. Up to 106205 conditions per place. [2024-06-03 21:00:59,338 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 66 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-06-03 21:00:59,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 73 transitions, 312 flow [2024-06-03 21:00:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:00:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:00:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-06-03 21:00:59,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-06-03 21:00:59,349 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 111 flow. Second operand 3 states and 100 transitions. [2024-06-03 21:00:59,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 73 transitions, 312 flow [2024-06-03 21:00:59,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 304 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-03 21:00:59,414 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 143 flow [2024-06-03 21:00:59,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-06-03 21:00:59,418 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places. [2024-06-03 21:00:59,418 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 143 flow [2024-06-03 21:00:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-06-03 21:00:59,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:59,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:59,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:00:59,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:00:59,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2000777324, now seen corresponding path program 1 times [2024-06-03 21:00:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:59,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505849017] [2024-06-03 21:00:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:59,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:59,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:59,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505849017] [2024-06-03 21:00:59,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505849017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:59,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:59,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:00:59,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576330199] [2024-06-03 21:00:59,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:59,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:00:59,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:59,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:00:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:00:59,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 60 [2024-06-03 21:00:59,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-06-03 21:00:59,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:59,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 60 [2024-06-03 21:00:59,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:01:03,924 INFO L124 PetriNetUnfolderBase]: 60427/82393 cut-off events. [2024-06-03 21:01:03,924 INFO L125 PetriNetUnfolderBase]: For 8205/8221 co-relation queries the response was YES. [2024-06-03 21:01:04,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169293 conditions, 82393 events. 60427/82393 cut-off events. For 8205/8221 co-relation queries the response was YES. Maximal size of possible extension queue 2697. Compared 536030 event pairs, 25963 based on Foata normal form. 3639/83706 useless extension candidates. Maximal degree in co-relation 169278. Up to 46714 conditions per place. [2024-06-03 21:01:04,560 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 69 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-06-03 21:01:04,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 80 transitions, 351 flow [2024-06-03 21:01:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:01:04,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:01:04,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-06-03 21:01:04,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-03 21:01:04,563 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 143 flow. Second operand 3 states and 108 transitions. [2024-06-03 21:01:04,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 80 transitions, 351 flow [2024-06-03 21:01:04,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 21:01:04,567 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 152 flow [2024-06-03 21:01:04,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2024-06-03 21:01:04,570 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places. [2024-06-03 21:01:04,571 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 152 flow [2024-06-03 21:01:04,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-06-03 21:01:04,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:01:04,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:01:04,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 21:01:04,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:01:04,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:01:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash 421579374, now seen corresponding path program 1 times [2024-06-03 21:01:04,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:01:04,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902990709] [2024-06-03 21:01:04,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:01:04,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:01:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:01:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:01:04,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:01:04,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902990709] [2024-06-03 21:01:04,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902990709] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:01:04,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:01:04,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:01:04,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728552279] [2024-06-03 21:01:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:01:04,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:01:04,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:01:04,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:01:04,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:01:04,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-06-03 21:01:04,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-06-03 21:01:04,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:01:04,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-06-03 21:01:04,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:01:13,076 INFO L124 PetriNetUnfolderBase]: 106264/148548 cut-off events. [2024-06-03 21:01:13,076 INFO L125 PetriNetUnfolderBase]: For 4179/4179 co-relation queries the response was YES. [2024-06-03 21:01:13,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305608 conditions, 148548 events. 106264/148548 cut-off events. For 4179/4179 co-relation queries the response was YES. Maximal size of possible extension queue 5674. Compared 1102994 event pairs, 29960 based on Foata normal form. 1608/145239 useless extension candidates. Maximal degree in co-relation 305591. Up to 47607 conditions per place. [2024-06-03 21:01:14,284 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 105 selfloop transitions, 21 changer transitions 0/140 dead transitions. [2024-06-03 21:01:14,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 140 transitions, 602 flow [2024-06-03 21:01:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:01:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:01:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2024-06-03 21:01:14,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-06-03 21:01:14,287 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 152 flow. Second operand 5 states and 212 transitions. [2024-06-03 21:01:14,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 140 transitions, 602 flow [2024-06-03 21:01:14,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 140 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 21:01:14,326 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 277 flow [2024-06-03 21:01:14,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=277, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2024-06-03 21:01:14,327 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2024-06-03 21:01:14,327 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 277 flow [2024-06-03 21:01:14,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-06-03 21:01:14,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:01:14,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:01:14,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 21:01:14,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:01:14,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:01:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash -388392850, now seen corresponding path program 2 times [2024-06-03 21:01:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:01:14,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100069100] [2024-06-03 21:01:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:01:14,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:01:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:01:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:01:14,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:01:14,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100069100] [2024-06-03 21:01:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100069100] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:01:14,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:01:14,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:01:14,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143823364] [2024-06-03 21:01:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:01:14,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:01:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:01:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:01:14,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:01:14,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-06-03 21:01:14,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-06-03 21:01:14,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:01:14,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-06-03 21:01:14,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:01:23,560 INFO L124 PetriNetUnfolderBase]: 110001/154688 cut-off events. [2024-06-03 21:01:23,561 INFO L125 PetriNetUnfolderBase]: For 74717/81186 co-relation queries the response was YES. [2024-06-03 21:01:24,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401418 conditions, 154688 events. 110001/154688 cut-off events. For 74717/81186 co-relation queries the response was YES. Maximal size of possible extension queue 5940. Compared 1168915 event pairs, 31212 based on Foata normal form. 3017/152594 useless extension candidates. Maximal degree in co-relation 401399. Up to 47639 conditions per place. [2024-06-03 21:01:24,620 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 105 selfloop transitions, 28 changer transitions 0/147 dead transitions. [2024-06-03 21:01:24,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 147 transitions, 762 flow [2024-06-03 21:01:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:01:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:01:24,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2024-06-03 21:01:24,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-06-03 21:01:24,623 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 277 flow. Second operand 5 states and 212 transitions. [2024-06-03 21:01:24,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 147 transitions, 762 flow [2024-06-03 21:01:24,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 147 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-03 21:01:24,640 INFO L231 Difference]: Finished difference. Result has 73 places, 79 transitions, 402 flow [2024-06-03 21:01:24,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=73, PETRI_TRANSITIONS=79} [2024-06-03 21:01:24,641 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 9 predicate places. [2024-06-03 21:01:24,641 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 79 transitions, 402 flow [2024-06-03 21:01:24,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-06-03 21:01:24,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:01:24,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:01:24,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 21:01:24,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:01:24,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:01:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash 121053646, now seen corresponding path program 1 times [2024-06-03 21:01:24,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:01:24,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688816544] [2024-06-03 21:01:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:01:24,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:01:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:01:24,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:01:24,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:01:24,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688816544] [2024-06-03 21:01:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688816544] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:01:24,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:01:24,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 21:01:24,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876973034] [2024-06-03 21:01:24,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:01:24,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:01:24,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:01:24,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:01:24,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:01:24,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-06-03 21:01:24,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 79 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-06-03 21:01:24,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:01:24,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-06-03 21:01:24,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand