./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_2-join.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/ldv-races/race-1_2-join.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_2-join.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 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-ab2e0ac-m [2024-01-29 14:38:14,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:38:14,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:38:14,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:38:14,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:38:14,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:38:14,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:38:14,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:38:14,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:38:14,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:38:14,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:38:14,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:38:14,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:38:14,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:38:14,780 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:38:14,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:38:14,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:38:14,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:38:14,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:38:14,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:38:14,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:38:14,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:38:14,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:38:14,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:38:14,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:38:14,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:38:14,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:38:14,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:38:14,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:38:14,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:38:14,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:38:14,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:38:14,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:38:14,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:38:14,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:38:14,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:38:14,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:38:14,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:38:14,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:38:14,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:38:14,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:38:14,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:38:14,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:38:14,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:38:15,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:38:15,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:38:15,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:38:15,060 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:38:15,061 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:38:15,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_2-join.yml/witness.yml [2024-01-29 14:38:15,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:38:15,205 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:38:15,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2024-01-29 14:38:16,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:38:16,434 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:38:16,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2024-01-29 14:38:16,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51115da6a/15584d1c512e41808ab27ac2400543f3/FLAG49af3b820 [2024-01-29 14:38:16,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51115da6a/15584d1c512e41808ab27ac2400543f3 [2024-01-29 14:38:16,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:38:16,466 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:38:16,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:38:16,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:38:16,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:38:16,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:15" (1/2) ... [2024-01-29 14:38:16,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4d7290 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:38:16, skipping insertion in model container [2024-01-29 14:38:16,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:15" (1/2) ... [2024-01-29 14:38:16,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@57329c68 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:38:16, skipping insertion in model container [2024-01-29 14:38:16,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:38:16" (2/2) ... [2024-01-29 14:38:16,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4d7290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:16, skipping insertion in model container [2024-01-29 14:38:16,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:38:16" (2/2) ... [2024-01-29 14:38:16,482 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:38:16,578 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:38:16,580 INFO L98 nessWitnessExtractor]: Location invariant before [L1712-L1712] pdev == 1 [2024-01-29 14:38:16,580 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] pdev == 0 [2024-01-29 14:38:16,580 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] (unsigned long )arg == 0UL [2024-01-29 14:38:16,580 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] pdev <= 6 [2024-01-29 14:38:16,580 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,581 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] 1 <= pdev [2024-01-29 14:38:16,581 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] 0 <= pdev [2024-01-29 14:38:16,581 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] pdev <= 127 [2024-01-29 14:38:16,581 INFO L98 nessWitnessExtractor]: Location invariant before [L1703-L1703] pdev != 0 [2024-01-29 14:38:16,581 INFO L98 nessWitnessExtractor]: Location invariant before [L1731-L1731] (unsigned long )status == 0UL [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1710-L1710] pdev == 1 [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1711-L1720] pdev == 1 [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] pdev != 0 [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] pdev <= 6 [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] 0 <= pdev [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] 1 <= pdev [2024-01-29 14:38:16,582 INFO L98 nessWitnessExtractor]: Location invariant before [L1718-L1718] pdev <= 127 [2024-01-29 14:38:16,583 INFO L98 nessWitnessExtractor]: Location invariant before [L1721-L1721] pdev == 1 [2024-01-29 14:38:16,583 INFO L98 nessWitnessExtractor]: Location invariant before [L1730-L1730] (unsigned long )status == 0UL [2024-01-29 14:38:16,583 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (unsigned long )arg == 0UL [2024-01-29 14:38:16,583 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] pdev <= 6 [2024-01-29 14:38:16,583 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] pdev != 0 [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] pdev <= 127 [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] 0 <= pdev [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] 1 <= pdev [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] 1 <= pdev [2024-01-29 14:38:16,584 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] pdev <= 127 [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] pdev <= 6 [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] pdev != 0 [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1717-L1717] 0 <= pdev [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1704-L1704] (unsigned long )arg == 0UL [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1729-L1729] (unsigned long )status == 0UL [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant before [L1723-L1723] pdev == 3 [2024-01-29 14:38:16,585 INFO L98 nessWitnessExtractor]: Location invariant after [L1726-L1732] (unsigned long )status == 0UL [2024-01-29 14:38:16,586 INFO L98 nessWitnessExtractor]: Location invariant before [L1695-L1695] expression == 1 [2024-01-29 14:38:16,586 INFO L98 nessWitnessExtractor]: Location invariant before [L1695-L1695] expression == 0 [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1695-L1695] ((((((((0 <= pdev && 1 <= pdev) && pdev <= 3) && pdev <= 127) && expression == 1) && pdev % 2 == 1) && pdev != 0) && (pdev == 1 || pdev == 3)) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((((((((0 <= expression && 0 <= pdev) && 1 <= pdev) && expression <= 1) && pdev <= 6) && pdev <= 127) && pdev != 0) && (expression == 0 || expression == 1)) && (((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6)) [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] pdev <= 127 [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] (unsigned long )arg == 0UL [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] 0 <= pdev [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] pdev <= 6 [2024-01-29 14:38:16,587 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] 1 <= pdev [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] pdev != 0 [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L1708-L1708] pdev == 0 [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] (unsigned long )arg == 0UL [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L22] pdev == 1 [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1705] (unsigned long )arg == 0UL [2024-01-29 14:38:16,588 INFO L98 nessWitnessExtractor]: Location invariant before [L1722-L1722] pdev == 3 [2024-01-29 14:38:16,589 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] 0 <= pdev [2024-01-29 14:38:16,589 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] 1 <= pdev [2024-01-29 14:38:16,589 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] pdev <= 127 [2024-01-29 14:38:16,590 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] pdev != 0 [2024-01-29 14:38:16,590 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] ((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6 [2024-01-29 14:38:16,590 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] pdev <= 6 [2024-01-29 14:38:16,590 INFO L98 nessWitnessExtractor]: Location invariant before [L1724-L1724] pdev == 3 [2024-01-29 14:38:16,636 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:38:17,119 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2024-01-29 14:38:17,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:38:17,171 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:38:17,178 WARN L424 MainDispatcher]: Unable to annotate typedef unsigned int __mode_t; with a witness entry [2024-01-29 14:38:17,213 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2024-01-29 14:38:17,214 WARN L424 MainDispatcher]: Unable to annotate void ldv_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();}}; return; } with a witness entry 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 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:38:17,266 WARN L424 MainDispatcher]: Unable to annotate void module_exit() { void *status; pthread_join(t1, &status); pthread_mutex_destroy(&mutex); pdev = 5; ldv_assert(pdev==5); } with a witness entry [2024-01-29 14:38:17,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:38:17,361 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:38:17,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17 WrapperNode [2024-01-29 14:38:17,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:38:17,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:38:17,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:38:17,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:38:17,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,435 INFO L138 Inliner]: procedures = 483, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2024-01-29 14:38:17,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:38:17,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:38:17,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:38:17,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:38:17,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,481 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 3, 5, 4]. 36 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 1, 5, 0]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-01-29 14:38:17,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:38:17,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:38:17,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:38:17,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:38:17,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (1/1) ... [2024-01-29 14:38:17,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:38:17,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:38:17,563 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) [2024-01-29 14:38:17,581 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 [2024-01-29 14:38:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:38:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:38:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-29 14:38:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:38:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:38:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:38:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-29 14:38:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-29 14:38:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-29 14:38:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:38:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:38:17,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:38:17,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:38:17,615 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:38:17,903 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:38:17,905 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:38:18,148 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:38:18,148 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:38:18,369 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:38:18,370 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:38:18,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:38:18 BoogieIcfgContainer [2024-01-29 14:38:18,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:38:18,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:38:18,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:38:18,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:38:18,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:15" (1/4) ... [2024-01-29 14:38:18,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0bf1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:38:18, skipping insertion in model container [2024-01-29 14:38:18,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:38:16" (2/4) ... [2024-01-29 14:38:18,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:38:18, skipping insertion in model container [2024-01-29 14:38:18,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:17" (3/4) ... [2024-01-29 14:38:18,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:38:18, skipping insertion in model container [2024-01-29 14:38:18,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:38:18" (4/4) ... [2024-01-29 14:38:18,377 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2024-01-29 14:38:18,392 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:38:18,392 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-01-29 14:38:18,392 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:38:18,429 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 14:38:18,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 107 transitions, 221 flow [2024-01-29 14:38:18,480 INFO L124 PetriNetUnfolderBase]: 4/110 cut-off events. [2024-01-29 14:38:18,480 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:38:18,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 4/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 396 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 35. Up to 3 conditions per place. [2024-01-29 14:38:18,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 107 transitions, 221 flow [2024-01-29 14:38:18,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 102 transitions, 210 flow [2024-01-29 14:38:18,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:38:18,497 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;@6f7b360d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:38:18,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-01-29 14:38:18,499 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:38:18,500 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:38:18,500 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:38:18,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:18,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:38:18,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:18,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:18,505 INFO L85 PathProgramCache]: Analyzing trace with hash 21981, now seen corresponding path program 1 times [2024-01-29 14:38:18,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368910566] [2024-01-29 14:38:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:18,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:18,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368910566] [2024-01-29 14:38:18,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368910566] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:18,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:18,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:38:18,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718411464] [2024-01-29 14:38:18,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:18,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:18,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:18,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:18,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 107 [2024-01-29 14:38:18,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-01-29 14:38:18,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:18,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 107 [2024-01-29 14:38:18,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:18,986 INFO L124 PetriNetUnfolderBase]: 114/319 cut-off events. [2024-01-29 14:38:18,986 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:38:18,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 319 events. 114/319 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 1991 event pairs, 104 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 545. Up to 247 conditions per place. [2024-01-29 14:38:18,990 INFO L140 encePairwiseOnDemand]: 60/107 looper letters, 49 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-01-29 14:38:18,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 82 transitions, 276 flow [2024-01-29 14:38:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2024-01-29 14:38:18,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6728971962616822 [2024-01-29 14:38:19,000 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 210 flow. Second operand 3 states and 216 transitions. [2024-01-29 14:38:19,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 82 transitions, 276 flow [2024-01-29 14:38:19,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 82 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:38:19,005 INFO L231 Difference]: Finished difference. Result has 77 places, 73 transitions, 192 flow [2024-01-29 14:38:19,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2024-01-29 14:38:19,009 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -27 predicate places. [2024-01-29 14:38:19,009 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 192 flow [2024-01-29 14:38:19,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-01-29 14:38:19,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:38:19,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:38:19,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash 21147423, now seen corresponding path program 1 times [2024-01-29 14:38:19,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975585327] [2024-01-29 14:38:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975585327] [2024-01-29 14:38:19,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975585327] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:38:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253148450] [2024-01-29 14:38:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:19,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:19,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:19,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 107 [2024-01-29 14:38:19,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-01-29 14:38:19,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 107 [2024-01-29 14:38:19,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,145 INFO L124 PetriNetUnfolderBase]: 88/282 cut-off events. [2024-01-29 14:38:19,146 INFO L125 PetriNetUnfolderBase]: For 47/53 co-relation queries the response was YES. [2024-01-29 14:38:19,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 282 events. 88/282 cut-off events. For 47/53 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1599 event pairs, 62 based on Foata normal form. 4/181 useless extension candidates. Maximal degree in co-relation 547. Up to 213 conditions per place. [2024-01-29 14:38:19,148 INFO L140 encePairwiseOnDemand]: 92/107 looper letters, 45 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2024-01-29 14:38:19,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 298 flow [2024-01-29 14:38:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:19,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2024-01-29 14:38:19,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4517133956386293 [2024-01-29 14:38:19,149 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 192 flow. Second operand 3 states and 145 transitions. [2024-01-29 14:38:19,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 298 flow [2024-01-29 14:38:19,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 74 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:38:19,153 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 214 flow [2024-01-29 14:38:19,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2024-01-29 14:38:19,153 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -30 predicate places. [2024-01-29 14:38:19,153 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 214 flow [2024-01-29 14:38:19,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-01-29 14:38:19,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:38:19,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1152142128, now seen corresponding path program 1 times [2024-01-29 14:38:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879839552] [2024-01-29 14:38:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879839552] [2024-01-29 14:38:19,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879839552] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:38:19,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347520732] [2024-01-29 14:38:19,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:38:19,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:38:19,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:38:19,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 107 [2024-01-29 14:38:19,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:38:19,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 107 [2024-01-29 14:38:19,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,408 INFO L124 PetriNetUnfolderBase]: 88/278 cut-off events. [2024-01-29 14:38:19,408 INFO L125 PetriNetUnfolderBase]: For 48/57 co-relation queries the response was YES. [2024-01-29 14:38:19,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 278 events. 88/278 cut-off events. For 48/57 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1606 event pairs, 62 based on Foata normal form. 2/169 useless extension candidates. Maximal degree in co-relation 466. Up to 213 conditions per place. [2024-01-29 14:38:19,410 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 44 selfloop transitions, 8 changer transitions 0/70 dead transitions. [2024-01-29 14:38:19,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 70 transitions, 318 flow [2024-01-29 14:38:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:38:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:38:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-01-29 14:38:19,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3121495327102804 [2024-01-29 14:38:19,412 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 214 flow. Second operand 5 states and 167 transitions. [2024-01-29 14:38:19,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 70 transitions, 318 flow [2024-01-29 14:38:19,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:38:19,414 INFO L231 Difference]: Finished difference. Result has 73 places, 67 transitions, 218 flow [2024-01-29 14:38:19,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2024-01-29 14:38:19,415 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -31 predicate places. [2024-01-29 14:38:19,415 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 218 flow [2024-01-29 14:38:19,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:38:19,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:38:19,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -770128185, now seen corresponding path program 1 times [2024-01-29 14:38:19,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630009464] [2024-01-29 14:38:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630009464] [2024-01-29 14:38:19,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630009464] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:38:19,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298412075] [2024-01-29 14:38:19,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:19,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:19,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:19,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 107 [2024-01-29 14:38:19,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-01-29 14:38:19,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 107 [2024-01-29 14:38:19,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,524 INFO L124 PetriNetUnfolderBase]: 88/271 cut-off events. [2024-01-29 14:38:19,525 INFO L125 PetriNetUnfolderBase]: For 58/67 co-relation queries the response was YES. [2024-01-29 14:38:19,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 271 events. 88/271 cut-off events. For 58/67 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1542 event pairs, 84 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 465. Up to 224 conditions per place. [2024-01-29 14:38:19,527 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 41 selfloop transitions, 0 changer transitions 6/64 dead transitions. [2024-01-29 14:38:19,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 304 flow [2024-01-29 14:38:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-01-29 14:38:19,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4205607476635514 [2024-01-29 14:38:19,528 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 218 flow. Second operand 3 states and 135 transitions. [2024-01-29 14:38:19,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 304 flow [2024-01-29 14:38:19,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 290 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:38:19,530 INFO L231 Difference]: Finished difference. Result has 68 places, 58 transitions, 184 flow [2024-01-29 14:38:19,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=68, PETRI_TRANSITIONS=58} [2024-01-29 14:38:19,531 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -36 predicate places. [2024-01-29 14:38:19,531 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 184 flow [2024-01-29 14:38:19,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-01-29 14:38:19,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:38:19,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1361490901, now seen corresponding path program 1 times [2024-01-29 14:38:19,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517933115] [2024-01-29 14:38:19,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517933115] [2024-01-29 14:38:19,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517933115] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:38:19,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670082008] [2024-01-29 14:38:19,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:38:19,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:38:19,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:38:19,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 107 [2024-01-29 14:38:19,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 58 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-01-29 14:38:19,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 107 [2024-01-29 14:38:19,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,736 INFO L124 PetriNetUnfolderBase]: 89/268 cut-off events. [2024-01-29 14:38:19,736 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-01-29 14:38:19,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 268 events. 89/268 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1357 event pairs, 40 based on Foata normal form. 50/225 useless extension candidates. Maximal degree in co-relation 664. Up to 203 conditions per place. [2024-01-29 14:38:19,738 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 50 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-29 14:38:19,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 312 flow [2024-01-29 14:38:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:38:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:38:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions. [2024-01-29 14:38:19,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39485981308411217 [2024-01-29 14:38:19,739 INFO L175 Difference]: Start difference. First operand has 68 places, 58 transitions, 184 flow. Second operand 4 states and 169 transitions. [2024-01-29 14:38:19,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 312 flow [2024-01-29 14:38:19,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 306 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-01-29 14:38:19,741 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 172 flow [2024-01-29 14:38:19,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-01-29 14:38:19,741 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -45 predicate places. [2024-01-29 14:38:19,741 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 172 flow [2024-01-29 14:38:19,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-01-29 14:38:19,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:38:19,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash 743382369, now seen corresponding path program 1 times [2024-01-29 14:38:19,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631803188] [2024-01-29 14:38:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631803188] [2024-01-29 14:38:19,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631803188] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:38:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633649308] [2024-01-29 14:38:19,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:19,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:19,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 107 [2024-01-29 14:38:19,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-01-29 14:38:19,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 107 [2024-01-29 14:38:19,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,863 INFO L124 PetriNetUnfolderBase]: 54/165 cut-off events. [2024-01-29 14:38:19,863 INFO L125 PetriNetUnfolderBase]: For 32/35 co-relation queries the response was YES. [2024-01-29 14:38:19,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 165 events. 54/165 cut-off events. For 32/35 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 693 event pairs, 40 based on Foata normal form. 5/119 useless extension candidates. Maximal degree in co-relation 402. Up to 126 conditions per place. [2024-01-29 14:38:19,864 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 33 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-29 14:38:19,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 214 flow [2024-01-29 14:38:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2024-01-29 14:38:19,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43302180685358255 [2024-01-29 14:38:19,865 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 172 flow. Second operand 3 states and 139 transitions. [2024-01-29 14:38:19,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 214 flow [2024-01-29 14:38:19,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 203 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-01-29 14:38:19,866 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 133 flow [2024-01-29 14:38:19,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-01-29 14:38:19,867 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -51 predicate places. [2024-01-29 14:38:19,867 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 133 flow [2024-01-29 14:38:19,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-01-29 14:38:19,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:38:19,868 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,868 INFO L85 PathProgramCache]: Analyzing trace with hash 743382370, now seen corresponding path program 1 times [2024-01-29 14:38:19,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745954964] [2024-01-29 14:38:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745954964] [2024-01-29 14:38:19,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745954964] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:19,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:19,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:38:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974206346] [2024-01-29 14:38:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:19,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:19,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:19,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 107 [2024-01-29 14:38:19,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-01-29 14:38:19,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:19,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 107 [2024-01-29 14:38:19,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:19,964 INFO L124 PetriNetUnfolderBase]: 46/163 cut-off events. [2024-01-29 14:38:19,964 INFO L125 PetriNetUnfolderBase]: For 26/29 co-relation queries the response was YES. [2024-01-29 14:38:19,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 163 events. 46/163 cut-off events. For 26/29 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 671 event pairs, 12 based on Foata normal form. 2/139 useless extension candidates. Maximal degree in co-relation 343. Up to 79 conditions per place. [2024-01-29 14:38:19,965 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 34 selfloop transitions, 5 changer transitions 4/56 dead transitions. [2024-01-29 14:38:19,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 56 transitions, 234 flow [2024-01-29 14:38:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2024-01-29 14:38:19,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4517133956386293 [2024-01-29 14:38:19,966 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 133 flow. Second operand 3 states and 145 transitions. [2024-01-29 14:38:19,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 56 transitions, 234 flow [2024-01-29 14:38:19,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 56 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:38:19,967 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 149 flow [2024-01-29 14:38:19,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-01-29 14:38:19,968 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -50 predicate places. [2024-01-29 14:38:19,968 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 149 flow [2024-01-29 14:38:19,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-01-29 14:38:19,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:19,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:19,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:38:19,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:19,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:19,970 INFO L85 PathProgramCache]: Analyzing trace with hash -527840392, now seen corresponding path program 1 times [2024-01-29 14:38:19,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:19,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026776338] [2024-01-29 14:38:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:38:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:38:20,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:38:20,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026776338] [2024-01-29 14:38:20,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026776338] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:38:20,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:38:20,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:38:20,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547222481] [2024-01-29 14:38:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:38:20,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:38:20,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:38:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:38:20,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:38:20,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 107 [2024-01-29 14:38:20,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-01-29 14:38:20,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:38:20,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 107 [2024-01-29 14:38:20,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:38:20,064 INFO L124 PetriNetUnfolderBase]: 25/115 cut-off events. [2024-01-29 14:38:20,064 INFO L125 PetriNetUnfolderBase]: For 77/80 co-relation queries the response was YES. [2024-01-29 14:38:20,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 115 events. 25/115 cut-off events. For 77/80 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 376 event pairs, 7 based on Foata normal form. 6/117 useless extension candidates. Maximal degree in co-relation 262. Up to 52 conditions per place. [2024-01-29 14:38:20,065 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 31 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2024-01-29 14:38:20,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 214 flow [2024-01-29 14:38:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:38:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:38:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-01-29 14:38:20,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42679127725856697 [2024-01-29 14:38:20,067 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 149 flow. Second operand 3 states and 137 transitions. [2024-01-29 14:38:20,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 214 flow [2024-01-29 14:38:20,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 200 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-01-29 14:38:20,084 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 121 flow [2024-01-29 14:38:20,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-01-29 14:38:20,085 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -55 predicate places. [2024-01-29 14:38:20,085 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 121 flow [2024-01-29 14:38:20,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-01-29 14:38:20,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:38:20,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:20,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:38:20,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 74 more)] === [2024-01-29 14:38:20,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:38:20,086 INFO L85 PathProgramCache]: Analyzing trace with hash 813995390, now seen corresponding path program 1 times [2024-01-29 14:38:20,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:38:20,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197642647] [2024-01-29 14:38:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:38:20,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:38:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:38:20,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:38:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:38:20,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:38:20,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:38:20,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (76 of 77 remaining) [2024-01-29 14:38:20,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 77 remaining) [2024-01-29 14:38:20,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 77 remaining) [2024-01-29 14:38:20,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 77 remaining) [2024-01-29 14:38:20,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 77 remaining) [2024-01-29 14:38:20,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 77 remaining) [2024-01-29 14:38:20,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 77 remaining) [2024-01-29 14:38:20,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 77 remaining) [2024-01-29 14:38:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 77 remaining) [2024-01-29 14:38:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 77 remaining) [2024-01-29 14:38:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 77 remaining) [2024-01-29 14:38:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 77 remaining) [2024-01-29 14:38:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 77 remaining) [2024-01-29 14:38:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 77 remaining) [2024-01-29 14:38:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (54 of 77 remaining) [2024-01-29 14:38:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 77 remaining) [2024-01-29 14:38:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 77 remaining) [2024-01-29 14:38:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 77 remaining) [2024-01-29 14:38:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 77 remaining) [2024-01-29 14:38:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 77 remaining) [2024-01-29 14:38:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 77 remaining) [2024-01-29 14:38:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 77 remaining) [2024-01-29 14:38:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 77 remaining) [2024-01-29 14:38:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 77 remaining) [2024-01-29 14:38:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 77 remaining) [2024-01-29 14:38:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (37 of 77 remaining) [2024-01-29 14:38:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 77 remaining) [2024-01-29 14:38:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 77 remaining) [2024-01-29 14:38:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 77 remaining) [2024-01-29 14:38:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 77 remaining) [2024-01-29 14:38:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (19 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 77 remaining) [2024-01-29 14:38:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 77 remaining) [2024-01-29 14:38:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 77 remaining) [2024-01-29 14:38:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 77 remaining) [2024-01-29 14:38:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 77 remaining) [2024-01-29 14:38:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 77 remaining) [2024-01-29 14:38:20,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:38:20,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:38:20,178 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:38:20,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:38:20,209 INFO L503 ceAbstractionStarter]: Automizer considered 54 witness invariants [2024-01-29 14:38:20,209 INFO L504 ceAbstractionStarter]: WitnessConsidered=54 [2024-01-29 14:38:20,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:38:20 BasicIcfg [2024-01-29 14:38:20,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:38:20,212 INFO L158 Benchmark]: Toolchain (without parser) took 3745.28ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 101.0MB in the beginning and 200.1MB in the end (delta: -99.1MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 115.3MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.44ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 75.2MB in the end (delta: 25.5MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.43ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 71.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: Boogie Preprocessor took 87.07ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 67.5MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,213 INFO L158 Benchmark]: RCFGBuilder took 846.76ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 67.5MB in the beginning and 149.9MB in the end (delta: -82.4MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,214 INFO L158 Benchmark]: TraceAbstraction took 1838.76ms. Allocated memory was 201.3MB in the beginning and 264.2MB in the end (delta: 62.9MB). Free memory was 148.8MB in the beginning and 200.1MB in the end (delta: -51.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-01-29 14:38:20,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 115.3MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.44ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 75.2MB in the end (delta: 25.5MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.43ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 71.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.07ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 67.5MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 846.76ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 67.5MB in the beginning and 149.9MB in the end (delta: -82.4MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1838.76ms. Allocated memory was 201.3MB in the beginning and 264.2MB in the end (delta: 62.9MB). Free memory was 148.8MB in the beginning and 200.1MB in the end (delta: -51.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1708] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1709] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1709] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1710] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]]]] [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]]]] [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]]]] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1700] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1701] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[pdev]]]] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[pdev]]]] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[127]]]] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[2]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[5]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]]] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1714] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]] [L1714] 0 pdev = 2 [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]] [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[2]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[5]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]]] [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[127]]]] [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[pdev]]]] [L1715] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[pdev]]]] VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[pdev]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[pdev]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[2]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[5]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1702] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[127]]]] [L1702] 1 pdev = 6 [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[127]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[pdev]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[pdev]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[2]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[5]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]] [L1703] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[pdev]]]] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[pdev],IntegerLiteral[0]]]] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[1]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[2]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[5]]],BinaryExpression[COMPEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]]] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[6]]]] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[pdev],IntegerLiteral[127]]]] [L1717] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[pdev]]]] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1704]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1717]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1724]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1729]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1730]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1731]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 77 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 3 mSDtfsCounter, 722 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 0.4s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 14:38:20,245 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE