./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --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/36-apron_21-traces-cluster-based_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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/goblint-regression/36-apron_21-traces-cluster-based_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/36-apron_21-traces-cluster-based_true.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-76401ed-m [2024-06-20 18:10:18,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:10:18,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:10:18,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:10:18,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:10:18,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:10:18,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:10:18,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:10:18,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:10:18,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:10:18,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:10:18,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:10:18,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:10:18,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:10:18,801 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:10:18,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:10:18,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:10:18,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:10:18,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:10:18,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:10:18,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:10:18,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:10:18,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:10:18,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:10:18,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:10:18,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:10:18,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:10:18,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:10:18,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:10:18,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:10:18,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:10:18,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:10:18,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:10:18,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:10:18,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:10:18,809 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:10:18,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:10:18,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:10:18,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:10:19,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:10:19,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:10:19,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:10:19,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:10:19,064 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:10:19,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-06-20 18:10:20,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:10:20,377 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:10:20,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-06-20 18:10:20,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffef4b47d/b47fb8c99cda40628ca4c77db92eb367/FLAG2f1d2f0b2 [2024-06-20 18:10:20,403 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffef4b47d/b47fb8c99cda40628ca4c77db92eb367 [2024-06-20 18:10:20,405 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:10:20,405 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:10:20,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/36-apron_21-traces-cluster-based_true.yml/witness.yml [2024-06-20 18:10:20,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:10:20,503 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:10:20,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:10:20,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:10:20,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:10:20,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:10:20" (1/2) ... [2024-06-20 18:10:20,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48000da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:10:20, skipping insertion in model container [2024-06-20 18:10:20,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:10:20" (1/2) ... [2024-06-20 18:10:20,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@627852e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:10:20, skipping insertion in model container [2024-06-20 18:10:20,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:20" (2/2) ... [2024-06-20 18:10:20,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48000da9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:20, skipping insertion in model container [2024-06-20 18:10:20,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:20" (2/2) ... [2024-06-20 18:10:20,550 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:10:20,607 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:10:20,608 INFO L97 edCorrectnessWitness]: Location invariant before [L728-L728] (((((! multithreaded || (-32768 <= h && -1016 <= h)) && (! multithreaded || (B_locked || ((((1998LL + (long long )g) + (long long )h >= 0LL && (0LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (A_locked || (((-32768 <= g && -32768 <= h) && -1016 <= h) && -999 <= g)))) && (! multithreaded || (A_locked || ((((2015LL + (long long )g) + (long long )h >= 0LL && (17LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (B_locked || (((-32768 <= g && -32768 <= h) && -999 <= g) && -999 <= h)))) && (! multithreaded || (-32768 <= g && -999 <= g)) [2024-06-20 18:10:20,608 INFO L97 edCorrectnessWitness]: Location invariant before [L730-L730] (((((! multithreaded || (-32768 <= h && -1016 <= h)) && (! multithreaded || (B_locked || ((((1998LL + (long long )g) + (long long )h >= 0LL && (0LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (A_locked || (((-32768 <= g && -32768 <= h) && -1016 <= h) && -999 <= g)))) && (! multithreaded || (A_locked || ((((2015LL + (long long )g) + (long long )h >= 0LL && (17LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (B_locked || (((-32768 <= g && -32768 <= h) && -999 <= g) && -999 <= h)))) && (! multithreaded || (-32768 <= g && -999 <= g)) [2024-06-20 18:10:20,609 INFO L97 edCorrectnessWitness]: Location invariant before [L729-L729] (((((! multithreaded || (-32768 <= h && -1016 <= h)) && (! multithreaded || (B_locked || ((((1998LL + (long long )g) + (long long )h >= 0LL && (0LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (A_locked || (((-32768 <= g && -32768 <= h) && -1016 <= h) && -999 <= g)))) && (! multithreaded || (A_locked || ((((2015LL + (long long )g) + (long long )h >= 0LL && (17LL - (long long )g) + (long long )h >= 0LL) && (4294967294LL - (long long )g) - (long long )h >= 0LL) && (long long )g - (long long )h >= 0LL)))) && (! multithreaded || (B_locked || (((-32768 <= g && -32768 <= h) && -999 <= g) && -999 <= h)))) && (! multithreaded || (-32768 <= g && -999 <= g)) [2024-06-20 18:10:20,609 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-20 18:10:20,609 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:10:20,609 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-20 18:10:20,609 INFO L106 edCorrectnessWitness]: ghost_update [L719-L719] B_locked = 0; [2024-06-20 18:10:20,609 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 0; [2024-06-20 18:10:20,609 INFO L106 edCorrectnessWitness]: ghost_update [L730-L730] A_locked = 1; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] A_locked = 1; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L736-L736] A_locked = 0; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L735-L735] B_locked = 0; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] A_locked = 1; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] B_locked = 0; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L727-L727] multithreaded = 1; [2024-06-20 18:10:20,610 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] A_locked = 0; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L715-L715] A_locked = 1; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L718-L718] A_locked = 0; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] A_locked = 0; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] A_locked = 1; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L733-L733] B_locked = 1; [2024-06-20 18:10:20,611 INFO L106 edCorrectnessWitness]: ghost_update [L714-L714] B_locked = 1; [2024-06-20 18:10:20,645 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:10:20,923 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:10:20,933 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:10:21,041 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:10:21,076 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:10:21,077 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21 WrapperNode [2024-06-20 18:10:21,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:10:21,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:10:21,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:10:21,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:10:21,084 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 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,096 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 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,127 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 163 [2024-06-20 18:10:21,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:10:21,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:10:21,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:10:21,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:10:21,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,160 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-20 18:10:21,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:10:21,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:10:21,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:10:21,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:10:21,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (1/1) ... [2024-06-20 18:10:21,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:10:21,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:10:21,211 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) [2024-06-20 18:10:21,228 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 [2024-06-20 18:10:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-06-20 18:10:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-06-20 18:10:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 18:10:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:10:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-06-20 18:10:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-06-20 18:10:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 18:10:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 18:10:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:10:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:10:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 18:10:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 18:10:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:10:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:10:21,242 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:10:21,334 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:10:21,336 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:10:21,633 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:10:21,634 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:10:21,769 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:10:21,770 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:10:21,770 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:10:21 BoogieIcfgContainer [2024-06-20 18:10:21,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:10:21,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:10:21,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:10:21,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:10:21,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:10:20" (1/4) ... [2024-06-20 18:10:21,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181a97ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:10:21, skipping insertion in model container [2024-06-20 18:10:21,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:10:20" (2/4) ... [2024-06-20 18:10:21,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181a97ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:10:21, skipping insertion in model container [2024-06-20 18:10:21,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:10:21" (3/4) ... [2024-06-20 18:10:21,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181a97ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:10:21, skipping insertion in model container [2024-06-20 18:10:21,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:10:21" (4/4) ... [2024-06-20 18:10:21,782 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2024-06-20 18:10:21,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:10:21,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-20 18:10:21,795 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:10:21,828 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-20 18:10:21,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 122 flow [2024-06-20 18:10:21,881 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2024-06-20 18:10:21,882 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:10:21,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-06-20 18:10:21,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 55 transitions, 122 flow [2024-06-20 18:10:21,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 52 transitions, 113 flow [2024-06-20 18:10:21,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:10:21,905 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;@14aeb1cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:10:21,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-20 18:10:21,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:10:21,907 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 18:10:21,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:10:21,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:21,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:10:21,909 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)] === [2024-06-20 18:10:21,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash 462425250, now seen corresponding path program 1 times [2024-06-20 18:10:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:21,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551069521] [2024-06-20 18:10:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:21,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:22,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:22,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551069521] [2024-06-20 18:10:22,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551069521] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:22,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:22,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:10:22,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184803959] [2024-06-20 18:10:22,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:22,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:10:22,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:10:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:10:22,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 55 [2024-06-20 18:10:22,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2024-06-20 18:10:22,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:22,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 55 [2024-06-20 18:10:22,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:24,181 INFO L124 PetriNetUnfolderBase]: 14383/22082 cut-off events. [2024-06-20 18:10:24,181 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-06-20 18:10:24,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42462 conditions, 22082 events. 14383/22082 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 149580 event pairs, 5668 based on Foata normal form. 240/22155 useless extension candidates. Maximal degree in co-relation 42450. Up to 12602 conditions per place. [2024-06-20 18:10:24,253 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 51 selfloop transitions, 2 changer transitions 16/79 dead transitions. [2024-06-20 18:10:24,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 309 flow [2024-06-20 18:10:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:10:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:10:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-06-20 18:10:24,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-06-20 18:10:24,264 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 113 flow. Second operand 3 states and 113 transitions. [2024-06-20 18:10:24,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 309 flow [2024-06-20 18:10:24,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 304 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:10:24,274 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 106 flow [2024-06-20 18:10:24,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2024-06-20 18:10:24,279 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2024-06-20 18:10:24,279 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 106 flow [2024-06-20 18:10:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2024-06-20 18:10:24,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:24,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:24,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:10:24,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:10:24,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1910808476, now seen corresponding path program 1 times [2024-06-20 18:10:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:24,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882294710] [2024-06-20 18:10:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:24,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:24,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882294710] [2024-06-20 18:10:24,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882294710] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:24,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:24,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:10:24,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538981436] [2024-06-20 18:10:24,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:24,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:10:24,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:24,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:10:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:10:24,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-06-20 18:10:24,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-06-20 18:10:24,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:24,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-06-20 18:10:24,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:25,356 INFO L124 PetriNetUnfolderBase]: 6202/9917 cut-off events. [2024-06-20 18:10:25,356 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-06-20 18:10:25,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20237 conditions, 9917 events. 6202/9917 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 60550 event pairs, 1021 based on Foata normal form. 55/9848 useless extension candidates. Maximal degree in co-relation 20225. Up to 2633 conditions per place. [2024-06-20 18:10:25,397 INFO L140 encePairwiseOnDemand]: 38/55 looper letters, 116 selfloop transitions, 20 changer transitions 2/146 dead transitions. [2024-06-20 18:10:25,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 146 transitions, 620 flow [2024-06-20 18:10:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:10:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:10:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-06-20 18:10:25,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6454545454545455 [2024-06-20 18:10:25,407 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 106 flow. Second operand 6 states and 213 transitions. [2024-06-20 18:10:25,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 146 transitions, 620 flow [2024-06-20 18:10:25,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 146 transitions, 612 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 18:10:25,417 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 260 flow [2024-06-20 18:10:25,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2024-06-20 18:10:25,418 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-06-20 18:10:25,418 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 260 flow [2024-06-20 18:10:25,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-06-20 18:10:25,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:25,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:25,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:10:25,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:10:25,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash -919140284, now seen corresponding path program 1 times [2024-06-20 18:10:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:25,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034552737] [2024-06-20 18:10:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:25,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:25,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:25,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034552737] [2024-06-20 18:10:25,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034552737] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:25,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:25,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:10:25,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967224829] [2024-06-20 18:10:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:25,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:10:25,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:10:25,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:10:25,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-06-20 18:10:25,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-06-20 18:10:25,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:25,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-06-20 18:10:25,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:26,326 INFO L124 PetriNetUnfolderBase]: 5228/8421 cut-off events. [2024-06-20 18:10:26,326 INFO L125 PetriNetUnfolderBase]: For 6512/6570 co-relation queries the response was YES. [2024-06-20 18:10:26,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23156 conditions, 8421 events. 5228/8421 cut-off events. For 6512/6570 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 51268 event pairs, 337 based on Foata normal form. 186/8606 useless extension candidates. Maximal degree in co-relation 23141. Up to 3186 conditions per place. [2024-06-20 18:10:26,361 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 129 selfloop transitions, 14 changer transitions 0/151 dead transitions. [2024-06-20 18:10:26,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 151 transitions, 843 flow [2024-06-20 18:10:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:10:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:10:26,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-06-20 18:10:26,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-20 18:10:26,363 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 260 flow. Second operand 6 states and 198 transitions. [2024-06-20 18:10:26,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 151 transitions, 843 flow [2024-06-20 18:10:26,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 151 transitions, 843 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-20 18:10:26,367 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 332 flow [2024-06-20 18:10:26,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2024-06-20 18:10:26,368 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 6 predicate places. [2024-06-20 18:10:26,368 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 332 flow [2024-06-20 18:10:26,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-06-20 18:10:26,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:26,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:26,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 18:10:26,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:10:26,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash 658203516, now seen corresponding path program 1 times [2024-06-20 18:10:26,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:26,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752514380] [2024-06-20 18:10:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:26,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752514380] [2024-06-20 18:10:26,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752514380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:26,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:26,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:10:26,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809988857] [2024-06-20 18:10:26,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:26,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:10:26,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:26,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:10:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:10:26,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-06-20 18:10:26,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-06-20 18:10:26,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:26,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-06-20 18:10:26,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:27,092 INFO L124 PetriNetUnfolderBase]: 4438/7292 cut-off events. [2024-06-20 18:10:27,092 INFO L125 PetriNetUnfolderBase]: For 8271/8331 co-relation queries the response was YES. [2024-06-20 18:10:27,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21346 conditions, 7292 events. 4438/7292 cut-off events. For 8271/8331 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 44331 event pairs, 230 based on Foata normal form. 404/7696 useless extension candidates. Maximal degree in co-relation 21328. Up to 2451 conditions per place. [2024-06-20 18:10:27,122 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 106 selfloop transitions, 7 changer transitions 29/150 dead transitions. [2024-06-20 18:10:27,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 150 transitions, 899 flow [2024-06-20 18:10:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:10:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:10:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2024-06-20 18:10:27,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2024-06-20 18:10:27,124 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 332 flow. Second operand 7 states and 196 transitions. [2024-06-20 18:10:27,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 150 transitions, 899 flow [2024-06-20 18:10:27,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 150 transitions, 883 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:10:27,136 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 284 flow [2024-06-20 18:10:27,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2024-06-20 18:10:27,137 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-06-20 18:10:27,137 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 284 flow [2024-06-20 18:10:27,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-06-20 18:10:27,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:10:27,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:10:27,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-20 18:10:27,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:10:27,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:10:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash -710705366, now seen corresponding path program 1 times [2024-06-20 18:10:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:10:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434609119] [2024-06-20 18:10:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:10:27,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:10:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:10:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:10:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:10:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434609119] [2024-06-20 18:10:27,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434609119] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:10:27,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:10:27,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:10:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872635176] [2024-06-20 18:10:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:10:27,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 18:10:27,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:10:27,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 18:10:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-20 18:10:27,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-06-20 18:10:27,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-06-20 18:10:27,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:10:27,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-06-20 18:10:27,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:10:27,468 INFO L124 PetriNetUnfolderBase]: 1193/2168 cut-off events. [2024-06-20 18:10:27,469 INFO L125 PetriNetUnfolderBase]: For 2389/2497 co-relation queries the response was YES. [2024-06-20 18:10:27,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6187 conditions, 2168 events. 1193/2168 cut-off events. For 2389/2497 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11676 event pairs, 152 based on Foata normal form. 270/2437 useless extension candidates. Maximal degree in co-relation 6175. Up to 1656 conditions per place. [2024-06-20 18:10:27,475 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-06-20 18:10:27,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 352 flow [2024-06-20 18:10:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:10:27,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:10:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2024-06-20 18:10:27,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2024-06-20 18:10:27,477 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 284 flow. Second operand 4 states and 112 transitions. [2024-06-20 18:10:27,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 352 flow [2024-06-20 18:10:27,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 60 transitions, 326 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-06-20 18:10:27,485 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-20 18:10:27,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-20 18:10:27,485 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-06-20 18:10:27,486 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-20 18:10:27,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-06-20 18:10:27,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-20 18:10:27,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-20 18:10:27,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-20 18:10:27,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-20 18:10:27,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-20 18:10:27,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-20 18:10:27,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-20 18:10:27,490 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-06-20 18:10:27,492 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:10:27,493 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:10:27,496 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-20 18:10:27,496 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-20 18:10:27,497 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:10:27 BasicIcfg [2024-06-20 18:10:27,497 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:10:27,497 INFO L158 Benchmark]: Toolchain (without parser) took 6994.03ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 64.1MB in the beginning and 907.0MB in the end (delta: -843.0MB). Peak memory consumption was 300.0MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,498 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:10:27,498 INFO L158 Benchmark]: Witness Parser took 4.38ms. Allocated memory is still 142.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:10:27,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.67ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 114.3MB in the beginning and 140.7MB in the end (delta: -26.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.28ms. Allocated memory is still 197.1MB. Free memory was 140.7MB in the beginning and 137.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,499 INFO L158 Benchmark]: Boogie Preprocessor took 59.23ms. Allocated memory is still 197.1MB. Free memory was 137.6MB in the beginning and 135.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,499 INFO L158 Benchmark]: RCFGBuilder took 583.49ms. Allocated memory is still 197.1MB. Free memory was 135.5MB in the beginning and 81.0MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,500 INFO L158 Benchmark]: TraceAbstraction took 5724.25ms. Allocated memory was 197.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 79.9MB in the beginning and 907.0MB in the end (delta: -827.1MB). Peak memory consumption was 259.2MB. Max. memory is 16.1GB. [2024-06-20 18:10:27,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 4.38ms. Allocated memory is still 142.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.67ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 114.3MB in the beginning and 140.7MB in the end (delta: -26.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.28ms. Allocated memory is still 197.1MB. Free memory was 140.7MB in the beginning and 137.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.23ms. Allocated memory is still 197.1MB. Free memory was 137.6MB in the beginning and 135.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.49ms. Allocated memory is still 197.1MB. Free memory was 135.5MB in the beginning and 81.0MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5724.25ms. Allocated memory was 197.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 79.9MB in the beginning and 907.0MB in the end (delta: -827.1MB). Peak memory consumption was 259.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 728]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 729]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 730]: 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, 90 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: 5.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 434 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 417 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1047 IncrementalHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 4 mSDtfsCounter, 1047 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=3, InterpolantAutomatonStates: 26, 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, 0.8s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-06-20 18:10:27,536 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