./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.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-3.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-3.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.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 21:00:39,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:00:39,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:00:39,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:00:39,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:00:39,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:00:39,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:00:39,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:00:39,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:00:39,946 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:00:39,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:00:39,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:00:39,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:00:39,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:00:39,947 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:00:39,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:00:39,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:00:39,950 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:00:39,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:00:39,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:00:39,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:00:39,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:00:39,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:00:39,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:00:39,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:00:39,955 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:00:39,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:00:39,955 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:00:39,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:00:39,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:39,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:00:39,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:00:39,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:00:39,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:00:39,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:00:39,958 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:00:39,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:00:39,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:00:39,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:00:40,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:00:40,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:00:40,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:00:40,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:00:40,194 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:00:40,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-03 21:00:41,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:00:41,462 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:00:41,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-03 21:00:41,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f295ff3/41300917b805475d97bba6aafa709141/FLAGca0b20c00 [2024-06-03 21:00:41,485 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f295ff3/41300917b805475d97bba6aafa709141 [2024-06-03 21:00:41,487 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:00:41,488 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:00:41,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.wvr.yml/witness.yml [2024-06-03 21:00:41,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:00:41,555 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:00:41,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:41,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:00:41,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:00:41,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:41" (1/2) ... [2024-06-03 21:00:41,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41793b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:41, skipping insertion in model container [2024-06-03 21:00:41,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:41" (1/2) ... [2024-06-03 21:00:41,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48b9fc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:41, skipping insertion in model container [2024-06-03 21:00:41,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:41" (2/2) ... [2024-06-03 21:00:41,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41793b58 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:41, skipping insertion in model container [2024-06-03 21:00:41,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:41" (2/2) ... [2024-06-03 21:00:41,562 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:00:41,577 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:00:41,578 INFO L97 edCorrectnessWitness]: Location invariant before [L119-L119] ! 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 21:00:41,578 INFO L97 edCorrectnessWitness]: Location invariant before [L118-L118] ! 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 21:00:41,578 INFO L97 edCorrectnessWitness]: Location invariant before [L117-L117] ! 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 21:00:41,578 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:00:41,578 INFO L106 edCorrectnessWitness]: ghost_update [L116-L116] multithreaded = 1; [2024-06-03 21:00:41,593 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:00:41,745 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:41,753 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:00:41,826 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:41,841 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:00:41,842 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:41 WrapperNode [2024-06-03 21:00:41,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:41,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:41,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:00:41,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:00:41,849 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,866 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,897 INFO L138 Inliner]: procedures = 21, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155 [2024-06-03 21:00:41,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:41,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:00:41,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:00:41,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:00:41,912 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,913 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,922 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,938 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 21:00:41,940 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,940 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,949 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,958 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,959 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,959 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:00:41,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:00:41,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:00:41,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:00:41,966 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 09:00:41" (1/1) ... [2024-06-03 21:00:41,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:00:41,997 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 21:00:42,006 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 21:00:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:00:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:00:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:00:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:00:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:00:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 21:00:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 21:00:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:00:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:00:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:00:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:00:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:00:42,036 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 21:00:42,101 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:00:42,102 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:00:42,370 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:00:42,371 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:00:42,496 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:00:42,496 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 21:00:42,497 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:42 BoogieIcfgContainer [2024-06-03 21:00:42,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:00:42,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:00:42,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:00:42,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:00:42,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:00:41" (1/4) ... [2024-06-03 21:00:42,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205950c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:00:42, skipping insertion in model container [2024-06-03 21:00:42,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:41" (2/4) ... [2024-06-03 21:00:42,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205950c7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:42, skipping insertion in model container [2024-06-03 21:00:42,502 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 09:00:41" (3/4) ... [2024-06-03 21:00:42,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205950c7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:42, skipping insertion in model container [2024-06-03 21:00:42,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:42" (4/4) ... [2024-06-03 21:00:42,503 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-06-03 21:00:42,515 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:00:42,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-03 21:00:42,516 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:00:42,547 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-03 21:00:42,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 97 flow [2024-06-03 21:00:42,589 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-06-03 21:00:42,590 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-03 21:00:42,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 35 events. 0/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-03 21:00:42,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 97 flow [2024-06-03 21:00:42,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 30 transitions, 69 flow [2024-06-03 21:00:42,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:00:42,604 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;@2319bb1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:00:42,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-03 21:00:42,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:00:42,608 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-03 21:00:42,608 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:00:42,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:42,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 21:00:42,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:42,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1969770453, now seen corresponding path program 1 times [2024-06-03 21:00:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:42,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304588831] [2024-06-03 21:00:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:42,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:42,872 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 21:00:42,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:42,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304588831] [2024-06-03 21:00:42,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304588831] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:42,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:42,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:00:42,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739742157] [2024-06-03 21:00:42,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:42,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:00:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:42,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:00:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:00:42,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-06-03 21:00:42,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 21:00:42,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:42,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-06-03 21:00:42,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:43,203 INFO L124 PetriNetUnfolderBase]: 1208/1832 cut-off events. [2024-06-03 21:00:43,204 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-06-03 21:00:43,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 1832 events. 1208/1832 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8095 event pairs, 431 based on Foata normal form. 45/1859 useless extension candidates. Maximal degree in co-relation 3720. Up to 1448 conditions per place. [2024-06-03 21:00:43,220 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 38 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-06-03 21:00:43,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 180 flow [2024-06-03 21:00:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:00:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:00:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-06-03 21:00:43,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-06-03 21:00:43,231 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 69 flow. Second operand 3 states and 62 transitions. [2024-06-03 21:00:43,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 180 flow [2024-06-03 21:00:43,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 21:00:43,237 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 85 flow [2024-06-03 21:00:43,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-06-03 21:00:43,241 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-06-03 21:00:43,241 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 85 flow [2024-06-03 21:00:43,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 21:00:43,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:43,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:43,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:00:43,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:43,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:43,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2011971158, now seen corresponding path program 1 times [2024-06-03 21:00:43,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:43,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772364764] [2024-06-03 21:00:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:43,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:43,425 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 21:00:43,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:43,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772364764] [2024-06-03 21:00:43,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772364764] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:43,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:43,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:00:43,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883137514] [2024-06-03 21:00:43,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:43,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:00:43,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:43,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:00:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:00:43,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-06-03 21:00:43,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 21:00:43,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:43,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-06-03 21:00:43,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:43,590 INFO L124 PetriNetUnfolderBase]: 961/1600 cut-off events. [2024-06-03 21:00:43,591 INFO L125 PetriNetUnfolderBase]: For 168/171 co-relation queries the response was YES. [2024-06-03 21:00:43,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3321 conditions, 1600 events. 961/1600 cut-off events. For 168/171 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7949 event pairs, 415 based on Foata normal form. 90/1675 useless extension candidates. Maximal degree in co-relation 3306. Up to 892 conditions per place. [2024-06-03 21:00:43,598 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 39 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2024-06-03 21:00:43,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 201 flow [2024-06-03 21:00:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:00:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:00:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-06-03 21:00:43,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2024-06-03 21:00:43,600 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 85 flow. Second operand 3 states and 64 transitions. [2024-06-03 21:00:43,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 201 flow [2024-06-03 21:00:43,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 21:00:43,606 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 92 flow [2024-06-03 21:00:43,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-06-03 21:00:43,607 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-06-03 21:00:43,607 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 92 flow [2024-06-03 21:00:43,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 21:00:43,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:43,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:43,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 21:00:43,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:43,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:43,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2029404750, now seen corresponding path program 1 times [2024-06-03 21:00:43,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:43,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557096245] [2024-06-03 21:00:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:43,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:43,682 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 21:00:43,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:43,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557096245] [2024-06-03 21:00:43,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557096245] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:43,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:43,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:00:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099182807] [2024-06-03 21:00:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:43,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:00:43,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:00:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:00:43,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-06-03 21:00:43,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 21:00:43,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:43,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-06-03 21:00:43,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:43,949 INFO L124 PetriNetUnfolderBase]: 1188/2160 cut-off events. [2024-06-03 21:00:43,949 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-06-03 21:00:43,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4499 conditions, 2160 events. 1188/2160 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13215 event pairs, 392 based on Foata normal form. 38/2159 useless extension candidates. Maximal degree in co-relation 4482. Up to 690 conditions per place. [2024-06-03 21:00:43,961 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 57 selfloop transitions, 13 changer transitions 0/78 dead transitions. [2024-06-03 21:00:43,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 78 transitions, 334 flow [2024-06-03 21:00:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:00:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:00:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-06-03 21:00:43,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6631578947368421 [2024-06-03 21:00:43,966 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 92 flow. Second operand 5 states and 126 transitions. [2024-06-03 21:00:43,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 78 transitions, 334 flow [2024-06-03 21:00:43,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 78 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 21:00:43,972 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 167 flow [2024-06-03 21:00:43,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2024-06-03 21:00:43,973 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2024-06-03 21:00:43,974 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 167 flow [2024-06-03 21:00:43,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 21:00:43,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:43,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:43,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 21:00:43,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:43,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -945782976, now seen corresponding path program 2 times [2024-06-03 21:00:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790389292] [2024-06-03 21:00:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:44,027 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 21:00:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790389292] [2024-06-03 21:00:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790389292] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:44,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:00:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680591911] [2024-06-03 21:00:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:44,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:00:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:00:44,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:00:44,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-06-03 21:00:44,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 21:00:44,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:44,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-06-03 21:00:44,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:44,225 INFO L124 PetriNetUnfolderBase]: 1145/2136 cut-off events. [2024-06-03 21:00:44,226 INFO L125 PetriNetUnfolderBase]: For 1072/1163 co-relation queries the response was YES. [2024-06-03 21:00:44,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5384 conditions, 2136 events. 1145/2136 cut-off events. For 1072/1163 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13240 event pairs, 394 based on Foata normal form. 49/2155 useless extension candidates. Maximal degree in co-relation 5365. Up to 669 conditions per place. [2024-06-03 21:00:44,236 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 57 selfloop transitions, 16 changer transitions 0/81 dead transitions. [2024-06-03 21:00:44,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 81 transitions, 422 flow [2024-06-03 21:00:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:00:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:00:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-06-03 21:00:44,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6631578947368421 [2024-06-03 21:00:44,238 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 167 flow. Second operand 5 states and 126 transitions. [2024-06-03 21:00:44,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 81 transitions, 422 flow [2024-06-03 21:00:44,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-03 21:00:44,240 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 236 flow [2024-06-03 21:00:44,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-06-03 21:00:44,241 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-06-03 21:00:44,241 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 236 flow [2024-06-03 21:00:44,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 21:00:44,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:44,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:44,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 21:00:44,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:44,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2054643798, now seen corresponding path program 1 times [2024-06-03 21:00:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:44,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106904994] [2024-06-03 21:00:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:44,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:44,325 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 21:00:44,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:44,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106904994] [2024-06-03 21:00:44,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106904994] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:44,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:44,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 21:00:44,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510852484] [2024-06-03 21:00:44,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:44,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:00:44,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:44,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:00:44,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:00:44,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-06-03 21:00:44,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 21:00:44,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:44,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-06-03 21:00:44,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:44,608 INFO L124 PetriNetUnfolderBase]: 1985/3284 cut-off events. [2024-06-03 21:00:44,608 INFO L125 PetriNetUnfolderBase]: For 4025/4069 co-relation queries the response was YES. [2024-06-03 21:00:44,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9819 conditions, 3284 events. 1985/3284 cut-off events. For 4025/4069 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 18175 event pairs, 832 based on Foata normal form. 67/3312 useless extension candidates. Maximal degree in co-relation 9796. Up to 2516 conditions per place. [2024-06-03 21:00:44,624 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 75 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2024-06-03 21:00:44,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 90 transitions, 623 flow [2024-06-03 21:00:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:00:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:00:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-06-03 21:00:44,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4789473684210526 [2024-06-03 21:00:44,627 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 236 flow. Second operand 5 states and 91 transitions. [2024-06-03 21:00:44,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 90 transitions, 623 flow [2024-06-03 21:00:44,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 90 transitions, 586 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 21:00:44,634 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 338 flow [2024-06-03 21:00:44,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=338, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2024-06-03 21:00:44,636 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 16 predicate places. [2024-06-03 21:00:44,636 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 338 flow [2024-06-03 21:00:44,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 21:00:44,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:44,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:44,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-03 21:00:44,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:44,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1850593021, now seen corresponding path program 1 times [2024-06-03 21:00:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568230703] [2024-06-03 21:00:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:44,723 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 21:00:44,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:44,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568230703] [2024-06-03 21:00:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568230703] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:44,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:44,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 21:00:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120347277] [2024-06-03 21:00:44,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:44,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:00:44,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:44,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:00:44,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:00:44,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-06-03 21:00:44,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 338 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 21:00:44,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:44,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-06-03 21:00:44,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:45,026 INFO L124 PetriNetUnfolderBase]: 1769/3014 cut-off events. [2024-06-03 21:00:45,040 INFO L125 PetriNetUnfolderBase]: For 5539/5609 co-relation queries the response was YES. [2024-06-03 21:00:45,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9211 conditions, 3014 events. 1769/3014 cut-off events. For 5539/5609 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17241 event pairs, 585 based on Foata normal form. 250/3243 useless extension candidates. Maximal degree in co-relation 9185. Up to 1838 conditions per place. [2024-06-03 21:00:45,052 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 53 selfloop transitions, 12 changer transitions 34/101 dead transitions. [2024-06-03 21:00:45,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 101 transitions, 742 flow [2024-06-03 21:00:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:00:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:00:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-06-03 21:00:45,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49473684210526314 [2024-06-03 21:00:45,053 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 338 flow. Second operand 5 states and 94 transitions. [2024-06-03 21:00:45,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 101 transitions, 742 flow [2024-06-03 21:00:45,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 101 transitions, 741 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 21:00:45,059 INFO L231 Difference]: Finished difference. Result has 60 places, 47 transitions, 326 flow [2024-06-03 21:00:45,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2024-06-03 21:00:45,060 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2024-06-03 21:00:45,060 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 326 flow [2024-06-03 21:00:45,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 21:00:45,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:45,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:45,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-03 21:00:45,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:00:45,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1886631441, now seen corresponding path program 1 times [2024-06-03 21:00:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:45,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975402178] [2024-06-03 21:00:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:45,113 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 21:00:45,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:45,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975402178] [2024-06-03 21:00:45,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975402178] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:45,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:45,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:00:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670243496] [2024-06-03 21:00:45,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:45,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:00:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:00:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:00:45,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-06-03 21:00:45,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 21:00:45,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:45,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-06-03 21:00:45,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:45,213 INFO L124 PetriNetUnfolderBase]: 300/571 cut-off events. [2024-06-03 21:00:45,214 INFO L125 PetriNetUnfolderBase]: For 960/1034 co-relation queries the response was YES. [2024-06-03 21:00:45,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 571 events. 300/571 cut-off events. For 960/1034 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2369 event pairs, 92 based on Foata normal form. 46/617 useless extension candidates. Maximal degree in co-relation 1694. Up to 186 conditions per place. [2024-06-03 21:00:45,215 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2024-06-03 21:00:45,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 370 flow [2024-06-03 21:00:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:00:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:00:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-06-03 21:00:45,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5578947368421052 [2024-06-03 21:00:45,217 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 326 flow. Second operand 5 states and 106 transitions. [2024-06-03 21:00:45,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 370 flow [2024-06-03 21:00:45,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 319 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-06-03 21:00:45,219 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-06-03 21:00:45,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-06-03 21:00:45,220 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-06-03 21:00:45,220 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-06-03 21:00:45,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 21:00:45,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-03 21:00:45,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-03 21:00:45,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-03 21:00:45,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-03 21:00:45,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-03 21:00:45,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-03 21:00:45,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-03 21:00:45,224 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-06-03 21:00:45,226 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 21:00:45,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 21:00:45,229 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-03 21:00:45,229 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-03 21:00:45,230 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 09:00:45 BasicIcfg [2024-06-03 21:00:45,230 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 21:00:45,231 INFO L158 Benchmark]: Toolchain (without parser) took 3675.29ms. Allocated memory was 155.2MB in the beginning and 291.5MB in the end (delta: 136.3MB). Free memory was 95.5MB in the beginning and 221.2MB in the end (delta: -125.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,231 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 155.2MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:00:45,231 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:00:45,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 80.1MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.65ms. Allocated memory is still 155.2MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,232 INFO L158 Benchmark]: Boogie Preprocessor took 61.38ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 75.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,232 INFO L158 Benchmark]: RCFGBuilder took 531.29ms. Allocated memory is still 155.2MB. Free memory was 75.7MB in the beginning and 91.8MB in the end (delta: -16.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,232 INFO L158 Benchmark]: TraceAbstraction took 2732.14ms. Allocated memory was 155.2MB in the beginning and 291.5MB in the end (delta: 136.3MB). Free memory was 90.5MB in the beginning and 221.2MB in the end (delta: -130.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-06-03 21:00:45,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 155.2MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 80.1MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.65ms. Allocated memory is still 155.2MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.38ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 75.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.29ms. Allocated memory is still 155.2MB. Free memory was 75.7MB in the beginning and 91.8MB in the end (delta: -16.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2732.14ms. Allocated memory was 155.2MB in the beginning and 291.5MB in the end (delta: 136.3MB). Free memory was 90.5MB in the beginning and 221.2MB in the end (delta: -130.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 117]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 118]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 119]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 61 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 327 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 747 IncrementalHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 27 mSDtfsCounter, 747 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 21:00:45,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE