./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.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/09_fmaxsym-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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/pthread-ext/09_fmaxsym-pthread.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym-pthread.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-a340643-m [2024-01-27 14:46:38,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:46:38,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:46:38,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:46:38,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:46:38,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:46:38,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:46:38,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:46:38,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:46:38,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:46:38,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:46:38,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:46:38,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:46:38,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:46:38,375 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:46:38,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:46:38,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:46:38,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:46:38,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:46:38,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:46:38,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:46:38,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:46:38,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:46:38,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:46:38,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:46:38,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:46:38,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:46:38,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:46:38,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:46:38,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:46:38,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:46:38,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:46:38,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:38,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:46:38,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:46:38,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:46:38,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:46:38,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:46:38,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:46:38,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:46:38,382 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:46:38,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:46:38,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:46:38,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:46:38,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:46:38,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:46:38,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:46:38,658 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:46:38,659 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:46:38,660 INFO L431 ainManager$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/09_fmaxsym-pthread.yml/witness.yml [2024-01-27 14:46:38,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:46:38,768 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:46:38,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i [2024-01-27 14:46:39,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:46:40,228 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:46:40,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i [2024-01-27 14:46:40,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc473594d/5ed9fb48d9c24a3588cc5d5f6b0ae274/FLAGec2bdc51c [2024-01-27 14:46:40,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc473594d/5ed9fb48d9c24a3588cc5d5f6b0ae274 [2024-01-27 14:46:40,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:46:40,254 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:46:40,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:40,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:46:40,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:46:40,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:38" (1/2) ... [2024-01-27 14:46:40,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39daff79 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:38" (1/2) ... [2024-01-27 14:46:40,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b55cee1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:40" (2/2) ... [2024-01-27 14:46:40,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39daff79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:40" (2/2) ... [2024-01-27 14:46:40,265 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:46:40,326 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= (int )max [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] i <= 2147483646 [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] offset <= 2147483645 [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] e == 0 [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (unsigned long )arg == 0UL [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] i <= 2147483646 [2024-01-27 14:46:40,327 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] e == 0 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] offset <= 2147483645 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (unsigned long )arg == 0UL [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset % 2 == 0 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483646 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] i <= 2147483646 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] e == 0 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] offset <= 2147483645 [2024-01-27 14:46:40,328 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] i <= 2147483646 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (int )max != 0 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (int )max <= -1 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] e == 0 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] offset <= 2147483645 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] (-2LL + (long long )i) - (long long )offset >= 0LL [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] -2147483646 <= i [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] offset <= 2147483645 [2024-01-27 14:46:40,329 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] (2LL - (long long )i) + (long long )offset >= 0LL [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] e == 0 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (int )max != 0 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (int )max <= -1 [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,330 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (unsigned long )arg == 0UL [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (unsigned long )arg == 0UL [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] i <= 2147483646 [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) && e == 0) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] offset <= 2147483645 [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] e == 0 [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] i <= 2147483646 [2024-01-27 14:46:40,331 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] offset <= 2147483645 [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] e == 0 [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] i <= 2147483646 [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= (int )max [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (int )max != 0 [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,332 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i) [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (int )max <= -1 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 14:46:40,333 INFO L98 nessWitnessExtractor]: Loop invariant at [L697-L709] (((offset <= 2147483645 && e == 0) && (((((-2147483646 <= i && (2LL - (long long )i) + (long long )offset >= 0LL) && (-2LL + (long long )i) - (long long )offset >= 0LL) || (((-2147483647 <= i && i <= 2147483646) && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL)) || ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL)) || (((i <= 2147483646 && (0LL - (long long )i) + (long long )offset >= 0LL) && (long long )i - (long long )offset >= 0LL) && offset == i))) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) || ((((4294967296LL + (long long )e) + (long long )i >= 0LL && (4294967295LL - (long long )e) + (long long )i >= 0LL) && (4294967295LL + (long long )e) - (long long )i >= 0LL) && (4294967294LL - (long long )e) - (long long )i >= 0LL) [2024-01-27 14:46:40,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:46:40,721 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i[30754,30767] [2024-01-27 14:46:40,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:40,762 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:40,872 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i[30754,30767] 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 [2024-01-27 14:46:40,881 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:40,890 WARN L424 MainDispatcher]: Unable to annotate inline void findMax(int offset) { int i; int e; for(i = offset; i < offset+2; i++) { e = storage[i]; pthread_mutex_lock(&m); { if(e > max) { max = e; } } pthread_mutex_unlock(&m); pthread_mutex_lock(&m); { if(!(e <= max)) { ERROR: {reach_error();abort();}(void)0; } }; pthread_mutex_unlock(&m); } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:40,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:40,937 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:46:40,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40 WrapperNode [2024-01-27 14:46:40,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:40,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:40,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:46:40,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:46:40,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,002 INFO L138 Inliner]: procedures = 165, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-01-27 14:46:41,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:41,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:46:41,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:46:41,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:46:41,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,038 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [2, 5, 8, 1]. 50 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 6, 0]. The 2 writes are split as follows [0, 0, 1, 1]. [2024-01-27 14:46:41,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:46:41,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:46:41,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:46:41,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:46:41,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:41,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:41,085 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) [2024-01-27 14:46:41,092 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 [2024-01-27 14:46:41,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:46:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:46:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:46:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:46:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-27 14:46:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-27 14:46:41,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:46:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:46:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:46:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:46:41,126 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:46:41,245 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:46:41,247 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:46:41,576 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:46:41,576 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:46:41,739 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:46:41,740 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-27 14:46:41,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:41 BoogieIcfgContainer [2024-01-27 14:46:41,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:46:41,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:46:41,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:46:41,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:46:41,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:38" (1/4) ... [2024-01-27 14:46:41,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f3d206 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:46:40" (2/4) ... [2024-01-27 14:46:41,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f3d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40" (3/4) ... [2024-01-27 14:46:41,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f3d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:41" (4/4) ... [2024-01-27 14:46:41,752 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym-pthread.i [2024-01-27 14:46:41,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:46:41,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-01-27 14:46:41,769 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:46:41,858 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:41,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 250 flow [2024-01-27 14:46:41,975 INFO L124 PetriNetUnfolderBase]: 4/125 cut-off events. [2024-01-27 14:46:41,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:41,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 125 events. 4/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 127 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2024-01-27 14:46:41,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 250 flow [2024-01-27 14:46:41,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 250 flow [2024-01-27 14:46:41,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:42,010 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;@7775d549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:42,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2024-01-27 14:46:42,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:42,018 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 14:46:42,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:42,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:42,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:46:42,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-27 14:46:42,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1727226778, now seen corresponding path program 1 times [2024-01-27 14:46:42,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:42,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030639221] [2024-01-27 14:46:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030639221] [2024-01-27 14:46:42,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030639221] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:42,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:42,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:46:42,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155763931] [2024-01-27 14:46:42,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:42,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:42,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:42,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-27 14:46:42,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2024-01-27 14:46:42,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:42,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-27 14:46:42,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:42,513 INFO L124 PetriNetUnfolderBase]: 29/359 cut-off events. [2024-01-27 14:46:42,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:42,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 359 events. 29/359 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1415 event pairs, 22 based on Foata normal form. 3/227 useless extension candidates. Maximal degree in co-relation 410. Up to 66 conditions per place. [2024-01-27 14:46:42,520 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 17 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-01-27 14:46:42,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 122 transitions, 286 flow [2024-01-27 14:46:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2024-01-27 14:46:42,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970189701897019 [2024-01-27 14:46:42,541 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 250 flow. Second operand 3 states and 331 transitions. [2024-01-27 14:46:42,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 122 transitions, 286 flow [2024-01-27 14:46:42,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 122 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:42,551 INFO L231 Difference]: Finished difference. Result has 124 places, 122 transitions, 258 flow [2024-01-27 14:46:42,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=124, PETRI_TRANSITIONS=122} [2024-01-27 14:46:42,556 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2024-01-27 14:46:42,557 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 122 transitions, 258 flow [2024-01-27 14:46:42,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2024-01-27 14:46:42,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:42,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:42,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:46:42,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-27 14:46:42,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2117158978, now seen corresponding path program 1 times [2024-01-27 14:46:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:42,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901774201] [2024-01-27 14:46:42,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:42,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901774201] [2024-01-27 14:46:42,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901774201] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:42,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801009939] [2024-01-27 14:46:42,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:42,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:42,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:42,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-27 14:46:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 14:46:42,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801009939] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:42,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-01-27 14:46:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512198606] [2024-01-27 14:46:42,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:42,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 14:46:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 14:46:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-27 14:46:42,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-27 14:46:42,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 122 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2024-01-27 14:46:42,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:42,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-27 14:46:42,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:42,940 INFO L124 PetriNetUnfolderBase]: 29/362 cut-off events. [2024-01-27 14:46:42,940 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:42,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 362 events. 29/362 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1429 event pairs, 22 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 434. Up to 66 conditions per place. [2024-01-27 14:46:42,946 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 17 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-01-27 14:46:42,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 125 transitions, 314 flow [2024-01-27 14:46:42,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:46:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:46:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2024-01-27 14:46:42,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8712737127371274 [2024-01-27 14:46:42,953 INFO L175 Difference]: Start difference. First operand has 124 places, 122 transitions, 258 flow. Second operand 6 states and 643 transitions. [2024-01-27 14:46:42,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 125 transitions, 314 flow [2024-01-27 14:46:42,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 125 transitions, 310 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:42,959 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 290 flow [2024-01-27 14:46:42,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=290, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2024-01-27 14:46:42,960 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-01-27 14:46:42,960 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 290 flow [2024-01-27 14:46:42,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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) [2024-01-27 14:46:42,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:42,961 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:42,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:43,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:43,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-27 14:46:43,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -966479258, now seen corresponding path program 2 times [2024-01-27 14:46:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000659927] [2024-01-27 14:46:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:43,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000659927] [2024-01-27 14:46:43,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000659927] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:43,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693708440] [2024-01-27 14:46:43,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 14:46:43,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:43,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:43,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:43,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-27 14:46:43,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 14:46:43,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 14:46:43,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 14:46:43,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-27 14:46:43,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 14:46:43,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693708440] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:43,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 14:46:43,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 14:46:43,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620931151] [2024-01-27 14:46:43,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:43,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:43,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:43,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:43,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:43,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 123 [2024-01-27 14:46:43,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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) [2024-01-27 14:46:43,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:43,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 123 [2024-01-27 14:46:43,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:43,552 INFO L124 PetriNetUnfolderBase]: 31/366 cut-off events. [2024-01-27 14:46:43,553 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:43,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 366 events. 31/366 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1428 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 434. Up to 63 conditions per place. [2024-01-27 14:46:43,556 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 24 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-01-27 14:46:43,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 124 transitions, 340 flow [2024-01-27 14:46:43,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 418 transitions. [2024-01-27 14:46:43,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8495934959349594 [2024-01-27 14:46:43,563 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 290 flow. Second operand 4 states and 418 transitions. [2024-01-27 14:46:43,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 124 transitions, 340 flow [2024-01-27 14:46:43,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 326 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:43,568 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 272 flow [2024-01-27 14:46:43,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=272, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2024-01-27 14:46:43,569 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 7 predicate places. [2024-01-27 14:46:43,569 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 272 flow [2024-01-27 14:46:43,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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) [2024-01-27 14:46:43,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:43,571 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-27 14:46:43,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:43,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-27 14:46:43,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-27 14:46:43,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 103840177, now seen corresponding path program 1 times [2024-01-27 14:46:43,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:43,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105063066] [2024-01-27 14:46:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:43,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105063066] [2024-01-27 14:46:43,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105063066] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428746590] [2024-01-27 14:46:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:43,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:43,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:43,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-27 14:46:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:43,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 14:46:43,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:43,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428746590] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:44,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-01-27 14:46:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744565406] [2024-01-27 14:46:44,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:44,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 14:46:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 14:46:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-01-27 14:46:44,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-27 14:46:44,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 272 flow. Second operand has 8 states, 8 states have (on average 104.5) internal successors, (836), 8 states have internal predecessors, (836), 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) [2024-01-27 14:46:44,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:44,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-27 14:46:44,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:44,097 INFO L124 PetriNetUnfolderBase]: 29/358 cut-off events. [2024-01-27 14:46:44,097 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-27 14:46:44,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 358 events. 29/358 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1404 event pairs, 22 based on Foata normal form. 2/226 useless extension candidates. Maximal degree in co-relation 421. Up to 66 conditions per place. [2024-01-27 14:46:44,099 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 17 selfloop transitions, 7 changer transitions 0/123 dead transitions. [2024-01-27 14:46:44,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 123 transitions, 332 flow [2024-01-27 14:46:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 14:46:44,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 14:46:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 850 transitions. [2024-01-27 14:46:44,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2024-01-27 14:46:44,102 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 272 flow. Second operand 8 states and 850 transitions. [2024-01-27 14:46:44,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 123 transitions, 332 flow [2024-01-27 14:46:44,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 123 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:46:44,105 INFO L231 Difference]: Finished difference. Result has 136 places, 123 transitions, 305 flow [2024-01-27 14:46:44,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=305, PETRI_PLACES=136, PETRI_TRANSITIONS=123} [2024-01-27 14:46:44,106 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2024-01-27 14:46:44,107 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 123 transitions, 305 flow [2024-01-27 14:46:44,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 104.5) internal successors, (836), 8 states have internal predecessors, (836), 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) [2024-01-27 14:46:44,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:44,107 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-27 14:46:44,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:44,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-27 14:46:44,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash 911732401, now seen corresponding path program 2 times [2024-01-27 14:46:44,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:44,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587707397] [2024-01-27 14:46:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:44,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:44,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:44,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:44,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:44,392 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (100 of 101 remaining) [2024-01-27 14:46:44,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 101 remaining) [2024-01-27 14:46:44,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 101 remaining) [2024-01-27 14:46:44,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 101 remaining) [2024-01-27 14:46:44,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 101 remaining) [2024-01-27 14:46:44,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 101 remaining) [2024-01-27 14:46:44,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 101 remaining) [2024-01-27 14:46:44,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 101 remaining) [2024-01-27 14:46:44,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 101 remaining) [2024-01-27 14:46:44,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 101 remaining) [2024-01-27 14:46:44,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 101 remaining) [2024-01-27 14:46:44,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 101 remaining) [2024-01-27 14:46:44,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 101 remaining) [2024-01-27 14:46:44,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 101 remaining) [2024-01-27 14:46:44,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 101 remaining) [2024-01-27 14:46:44,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 101 remaining) [2024-01-27 14:46:44,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 101 remaining) [2024-01-27 14:46:44,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 101 remaining) [2024-01-27 14:46:44,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 101 remaining) [2024-01-27 14:46:44,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 101 remaining) [2024-01-27 14:46:44,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 101 remaining) [2024-01-27 14:46:44,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 101 remaining) [2024-01-27 14:46:44,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 101 remaining) [2024-01-27 14:46:44,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 101 remaining) [2024-01-27 14:46:44,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 101 remaining) [2024-01-27 14:46:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 101 remaining) [2024-01-27 14:46:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 101 remaining) [2024-01-27 14:46:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 101 remaining) [2024-01-27 14:46:44,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 101 remaining) [2024-01-27 14:46:44,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 101 remaining) [2024-01-27 14:46:44,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 101 remaining) [2024-01-27 14:46:44,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 101 remaining) [2024-01-27 14:46:44,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 101 remaining) [2024-01-27 14:46:44,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 101 remaining) [2024-01-27 14:46:44,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 101 remaining) [2024-01-27 14:46:44,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 101 remaining) [2024-01-27 14:46:44,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (56 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 101 remaining) [2024-01-27 14:46:44,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 101 remaining) [2024-01-27 14:46:44,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 101 remaining) [2024-01-27 14:46:44,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 101 remaining) [2024-01-27 14:46:44,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 101 remaining) [2024-01-27 14:46:44,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 101 remaining) [2024-01-27 14:46:44,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 101 remaining) [2024-01-27 14:46:44,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 101 remaining) [2024-01-27 14:46:44,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 101 remaining) [2024-01-27 14:46:44,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 101 remaining) [2024-01-27 14:46:44,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 101 remaining) [2024-01-27 14:46:44,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 101 remaining) [2024-01-27 14:46:44,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 101 remaining) [2024-01-27 14:46:44,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 101 remaining) [2024-01-27 14:46:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 101 remaining) [2024-01-27 14:46:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 101 remaining) [2024-01-27 14:46:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 101 remaining) [2024-01-27 14:46:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 101 remaining) [2024-01-27 14:46:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 101 remaining) [2024-01-27 14:46:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 101 remaining) [2024-01-27 14:46:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 101 remaining) [2024-01-27 14:46:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 101 remaining) [2024-01-27 14:46:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 101 remaining) [2024-01-27 14:46:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 101 remaining) [2024-01-27 14:46:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 101 remaining) [2024-01-27 14:46:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 101 remaining) [2024-01-27 14:46:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 101 remaining) [2024-01-27 14:46:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (6 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 101 remaining) [2024-01-27 14:46:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 101 remaining) [2024-01-27 14:46:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 101 remaining) [2024-01-27 14:46:44,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:46:44,425 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 14:46:44,427 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 14:46:44,428 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 14:46:44,501 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:44,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 239 transitions, 488 flow [2024-01-27 14:46:44,539 INFO L124 PetriNetUnfolderBase]: 7/244 cut-off events. [2024-01-27 14:46:44,539 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:44,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 244 events. 7/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 684 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 233. Up to 3 conditions per place. [2024-01-27 14:46:44,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 239 transitions, 488 flow [2024-01-27 14:46:44,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 239 transitions, 488 flow [2024-01-27 14:46:44,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:44,550 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;@7775d549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:44,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2024-01-27 14:46:44,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:44,553 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 14:46:44,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:44,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:44,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:46:44,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-27 14:46:44,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1048366105, now seen corresponding path program 1 times [2024-01-27 14:46:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046193501] [2024-01-27 14:46:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046193501] [2024-01-27 14:46:44,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046193501] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:44,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:44,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:46:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093072892] [2024-01-27 14:46:44,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:44,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-27 14:46:44,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 239 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-01-27 14:46:44,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:44,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-27 14:46:44,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:45,281 INFO L124 PetriNetUnfolderBase]: 927/5985 cut-off events. [2024-01-27 14:46:45,281 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 14:46:45,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7417 conditions, 5985 events. 927/5985 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 59606 event pairs, 728 based on Foata normal form. 57/3832 useless extension candidates. Maximal degree in co-relation 5957. Up to 1390 conditions per place. [2024-01-27 14:46:45,335 INFO L140 encePairwiseOnDemand]: 233/239 looper letters, 30 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2024-01-27 14:46:45,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 237 transitions, 548 flow [2024-01-27 14:46:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2024-01-27 14:46:45,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9079497907949791 [2024-01-27 14:46:45,338 INFO L175 Difference]: Start difference. First operand has 237 places, 239 transitions, 488 flow. Second operand 3 states and 651 transitions. [2024-01-27 14:46:45,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 237 transitions, 548 flow [2024-01-27 14:46:45,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 237 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:45,342 INFO L231 Difference]: Finished difference. Result has 239 places, 237 transitions, 494 flow [2024-01-27 14:46:45,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=239, PETRI_TRANSITIONS=237} [2024-01-27 14:46:45,343 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 2 predicate places. [2024-01-27 14:46:45,343 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 237 transitions, 494 flow [2024-01-27 14:46:45,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-01-27 14:46:45,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:45,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:45,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:46:45,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-27 14:46:45,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:45,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1976551136, now seen corresponding path program 1 times [2024-01-27 14:46:45,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:45,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818541438] [2024-01-27 14:46:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:45,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:45,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:45,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818541438] [2024-01-27 14:46:45,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818541438] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:45,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175725383] [2024-01-27 14:46:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:45,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:45,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:45,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:45,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-27 14:46:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:45,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 14:46:45,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:45,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:45,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175725383] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:45,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:45,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-01-27 14:46:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080638900] [2024-01-27 14:46:45,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:45,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 14:46:45,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:45,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 14:46:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-27 14:46:45,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-27 14:46:45,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 237 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 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) [2024-01-27 14:46:45,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:45,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-27 14:46:45,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:46,248 INFO L124 PetriNetUnfolderBase]: 927/5988 cut-off events. [2024-01-27 14:46:46,248 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 14:46:46,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7433 conditions, 5988 events. 927/5988 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 59556 event pairs, 728 based on Foata normal form. 0/3778 useless extension candidates. Maximal degree in co-relation 7420. Up to 1390 conditions per place. [2024-01-27 14:46:46,290 INFO L140 encePairwiseOnDemand]: 236/239 looper letters, 30 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2024-01-27 14:46:46,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 240 transitions, 576 flow [2024-01-27 14:46:46,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:46:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:46:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1268 transitions. [2024-01-27 14:46:46,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8842398884239888 [2024-01-27 14:46:46,293 INFO L175 Difference]: Start difference. First operand has 239 places, 237 transitions, 494 flow. Second operand 6 states and 1268 transitions. [2024-01-27 14:46:46,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 240 transitions, 576 flow [2024-01-27 14:46:46,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 240 transitions, 572 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:46,297 INFO L231 Difference]: Finished difference. Result has 246 places, 240 transitions, 526 flow [2024-01-27 14:46:46,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=246, PETRI_TRANSITIONS=240} [2024-01-27 14:46:46,299 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 9 predicate places. [2024-01-27 14:46:46,299 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 240 transitions, 526 flow [2024-01-27 14:46:46,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 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) [2024-01-27 14:46:46,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:46,300 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:46,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:46,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:46,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-27 14:46:46,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:46,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1181963737, now seen corresponding path program 2 times [2024-01-27 14:46:46,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:46,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818043302] [2024-01-27 14:46:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:46,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:46,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:46,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818043302] [2024-01-27 14:46:46,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818043302] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:46,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482448672] [2024-01-27 14:46:46,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 14:46:46,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:46,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:46,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:46,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-27 14:46:46,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 14:46:46,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 14:46:46,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 14:46:46,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-27 14:46:46,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 14:46:46,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482448672] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:46,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 14:46:46,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 14:46:46,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877193824] [2024-01-27 14:46:46,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:46,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:46,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:46,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:46,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 239 [2024-01-27 14:46:46,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 240 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 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) [2024-01-27 14:46:46,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:46,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 239 [2024-01-27 14:46:46,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:47,530 INFO L124 PetriNetUnfolderBase]: 988/6625 cut-off events. [2024-01-27 14:46:47,530 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-27 14:46:47,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8177 conditions, 6625 events. 988/6625 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 67425 event pairs, 409 based on Foata normal form. 0/4187 useless extension candidates. Maximal degree in co-relation 8142. Up to 1412 conditions per place. [2024-01-27 14:46:47,572 INFO L140 encePairwiseOnDemand]: 233/239 looper letters, 50 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2024-01-27 14:46:47,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 252 transitions, 659 flow [2024-01-27 14:46:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:47,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 852 transitions. [2024-01-27 14:46:47,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.891213389121339 [2024-01-27 14:46:47,575 INFO L175 Difference]: Start difference. First operand has 246 places, 240 transitions, 526 flow. Second operand 4 states and 852 transitions. [2024-01-27 14:46:47,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 252 transitions, 659 flow [2024-01-27 14:46:47,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 252 transitions, 645 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:47,581 INFO L231 Difference]: Finished difference. Result has 244 places, 236 transitions, 508 flow [2024-01-27 14:46:47,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=244, PETRI_TRANSITIONS=236} [2024-01-27 14:46:47,583 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 7 predicate places. [2024-01-27 14:46:47,583 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 236 transitions, 508 flow [2024-01-27 14:46:47,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.75) internal successors, (807), 4 states have internal predecessors, (807), 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) [2024-01-27 14:46:47,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:47,584 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:47,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:47,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:47,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-27 14:46:47,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2013828979, now seen corresponding path program 1 times [2024-01-27 14:46:47,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:47,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976115178] [2024-01-27 14:46:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:47,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:47,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976115178] [2024-01-27 14:46:47,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976115178] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238075228] [2024-01-27 14:46:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:47,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:47,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:47,873 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-27 14:46:47,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-27 14:46:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:47,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 14:46:47,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:47,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238075228] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:47,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:47,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-01-27 14:46:48,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863311502] [2024-01-27 14:46:48,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:48,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 14:46:48,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 14:46:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-01-27 14:46:48,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-27 14:46:48,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 236 transitions, 508 flow. Second operand has 8 states, 8 states have (on average 206.5) internal successors, (1652), 8 states have internal predecessors, (1652), 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) [2024-01-27 14:46:48,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:48,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-27 14:46:48,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:48,654 INFO L124 PetriNetUnfolderBase]: 927/5975 cut-off events. [2024-01-27 14:46:48,654 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-27 14:46:48,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7435 conditions, 5975 events. 927/5975 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 59450 event pairs, 728 based on Foata normal form. 2/3769 useless extension candidates. Maximal degree in co-relation 7398. Up to 1390 conditions per place. [2024-01-27 14:46:48,690 INFO L140 encePairwiseOnDemand]: 236/239 looper letters, 30 selfloop transitions, 7 changer transitions 0/238 dead transitions. [2024-01-27 14:46:48,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 238 transitions, 594 flow [2024-01-27 14:46:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 14:46:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 14:46:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1679 transitions. [2024-01-27 14:46:48,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781380753138075 [2024-01-27 14:46:48,695 INFO L175 Difference]: Start difference. First operand has 244 places, 236 transitions, 508 flow. Second operand 8 states and 1679 transitions. [2024-01-27 14:46:48,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 238 transitions, 594 flow [2024-01-27 14:46:48,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 238 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:46:48,700 INFO L231 Difference]: Finished difference. Result has 251 places, 238 transitions, 541 flow [2024-01-27 14:46:48,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=541, PETRI_PLACES=251, PETRI_TRANSITIONS=238} [2024-01-27 14:46:48,701 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 14 predicate places. [2024-01-27 14:46:48,701 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 238 transitions, 541 flow [2024-01-27 14:46:48,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 206.5) internal successors, (1652), 8 states have internal predecessors, (1652), 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) [2024-01-27 14:46:48,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:48,702 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:48,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:48,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:48,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-27 14:46:48,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:48,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1823779923, now seen corresponding path program 2 times [2024-01-27 14:46:48,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:48,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886251281] [2024-01-27 14:46:48,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:48,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:48,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:48,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:48,962 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (150 of 151 remaining) [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (149 of 151 remaining) [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (148 of 151 remaining) [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (147 of 151 remaining) [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (146 of 151 remaining) [2024-01-27 14:46:48,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (145 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (144 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (143 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (142 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (141 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (140 of 151 remaining) [2024-01-27 14:46:48,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (139 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (138 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (137 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (136 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (135 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (134 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (133 of 151 remaining) [2024-01-27 14:46:48,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 151 remaining) [2024-01-27 14:46:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 151 remaining) [2024-01-27 14:46:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 151 remaining) [2024-01-27 14:46:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 151 remaining) [2024-01-27 14:46:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (106 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 151 remaining) [2024-01-27 14:46:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (99 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 151 remaining) [2024-01-27 14:46:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 151 remaining) [2024-01-27 14:46:48,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 151 remaining) [2024-01-27 14:46:48,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 151 remaining) [2024-01-27 14:46:48,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 151 remaining) [2024-01-27 14:46:48,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 151 remaining) [2024-01-27 14:46:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 151 remaining) [2024-01-27 14:46:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (55 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 151 remaining) [2024-01-27 14:46:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 151 remaining) [2024-01-27 14:46:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 151 remaining) [2024-01-27 14:46:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 151 remaining) [2024-01-27 14:46:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 151 remaining) [2024-01-27 14:46:48,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 151 remaining) [2024-01-27 14:46:48,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 151 remaining) [2024-01-27 14:46:48,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (6 of 151 remaining) [2024-01-27 14:46:48,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 151 remaining) [2024-01-27 14:46:48,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 151 remaining) [2024-01-27 14:46:48,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 151 remaining) [2024-01-27 14:46:48,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 151 remaining) [2024-01-27 14:46:48,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 151 remaining) [2024-01-27 14:46:48,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 151 remaining) [2024-01-27 14:46:48,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 14:46:48,987 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 14:46:48,992 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-27 14:46:48,992 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:46:49,017 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-27 14:46:49,026 INFO L503 ceAbstractionStarter]: Automizer considered 49 witness invariants [2024-01-27 14:46:49,026 INFO L504 ceAbstractionStarter]: WitnessConsidered=49 [2024-01-27 14:46:49,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:46:49 BasicIcfg [2024-01-27 14:46:49,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:46:49,028 INFO L158 Benchmark]: Toolchain (without parser) took 8774.34ms. Allocated memory was 148.9MB in the beginning and 423.6MB in the end (delta: 274.7MB). Free memory was 116.4MB in the beginning and 216.0MB in the end (delta: -99.6MB). Peak memory consumption was 177.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,029 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 148.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:49,029 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:49,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.85ms. Allocated memory is still 148.9MB. Free memory was 116.4MB in the beginning and 88.3MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.61ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 85.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,031 INFO L158 Benchmark]: Boogie Preprocessor took 50.77ms. Allocated memory is still 148.9MB. Free memory was 85.7MB in the beginning and 82.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,031 INFO L158 Benchmark]: RCFGBuilder took 686.41ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 110.7MB in the end (delta: -27.7MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,031 INFO L158 Benchmark]: TraceAbstraction took 7284.03ms. Allocated memory was 148.9MB in the beginning and 423.6MB in the end (delta: 274.7MB). Free memory was 109.6MB in the beginning and 216.0MB in the end (delta: -106.4MB). Peak memory consumption was 168.3MB. Max. memory is 16.1GB. [2024-01-27 14:46:49,033 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 0.19ms. Allocated memory is still 148.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 682.85ms. Allocated memory is still 148.9MB. Free memory was 116.4MB in the beginning and 88.3MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.61ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 85.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.77ms. Allocated memory is still 148.9MB. Free memory was 85.7MB in the beginning and 82.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 686.41ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 110.7MB in the end (delta: -27.7MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7284.03ms. Allocated memory was 148.9MB in the beginning and 423.6MB in the end (delta: 274.7MB). Free memory was 109.6MB in the beginning and 216.0MB in the end (delta: -106.4MB). Peak memory consumption was 168.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 713]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L690] 0 volatile int max = 0x80000000; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L692] 0 int storage[2*3]; [L718] 0 int i = 0; VAL [i=0, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=1, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=2, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=3, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=4, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=5, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND TRUE 0 i < 2*3 [L719] 0 storage[i] = __VERIFIER_nondet_int() [L718] 0 i++ VAL [i=6, m={3:0}, max=-2147483648, storage={4:0}] [L718] COND FALSE 0 !(i < 2*3) [L720] 0 pthread_t t; VAL [m={3:0}, max=-2147483648, storage={4:0}, t={5:0}] [L721] COND TRUE 0 1 [L721] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m={3:0}, max=-2147483648, storage={4:0}, t={5:0}] [L712] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L712] 1 int offset=__VERIFIER_nondet_int(); [L713] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[offset],IntegerLiteral[2147483646]]]] VAL [arg={0:0}, arg={0:0}, m={3:0}, max=-2147483648, offset=2147483647, storage={4:0}] - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: 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: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: 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, 233 locations, 101 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 4 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 16/59 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 346 locations, 151 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: 4.5s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=541occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 10/53 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! [2024-01-27 14:46:49,056 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