./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 8857f20b 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-8857f20-m [2024-01-29 22:50:19,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:50:19,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:50:19,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:50:19,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:50:19,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:50:19,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:50:19,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:50:19,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:50:19,476 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:50:19,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:50:19,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:50:19,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:50:19,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:50:19,478 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:50:19,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:50:19,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:50:19,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:50:19,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:50:19,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:50:19,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:50:19,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:50:19,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:50:19,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:50:19,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:50:19,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:50:19,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:50:19,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:50:19,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:50:19,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:50:19,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:50:19,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:50:19,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:19,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:50:19,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:50:19,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:50:19,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:50:19,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:50:19,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:50:19,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:50:19,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:50:19,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:50:19,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:50:19,485 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:50:19,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:50:19,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:50:19,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:50:19,744 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:50:19,744 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:50:19,745 INFO L431 ainManager$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 [2024-01-29 22:50:19,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:50:19,868 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:50:19,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i [2024-01-29 22:50:20,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:50:21,113 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:50:21,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym-pthread.i [2024-01-29 22:50:21,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cb16545/684b56b68c6b4daa920189d85499abb3/FLAGd7fd59bcb [2024-01-29 22:50:21,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cb16545/684b56b68c6b4daa920189d85499abb3 [2024-01-29 22:50:21,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:50:21,148 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:50:21,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:21,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:50:21,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:50:21,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:19" (1/2) ... [2024-01-29 22:50:21,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13db879d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:21, skipping insertion in model container [2024-01-29 22:50:21,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:19" (1/2) ... [2024-01-29 22:50:21,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29a22f0e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:21, skipping insertion in model container [2024-01-29 22:50:21,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:21" (2/2) ... [2024-01-29 22:50:21,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13db879d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21, skipping insertion in model container [2024-01-29 22:50:21,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:21" (2/2) ... [2024-01-29 22:50:21,168 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:50:21,218 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:50:21,220 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] ((offset <= 2147483646) && (offset % 2 == 0)) && ((unsigned long )arg == 0UL) [2024-01-29 22:50:21,220 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (offset <= 2147483646) && (offset % 2 == 0) [2024-01-29 22:50:21,220 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483646 [2024-01-29 22:50:21,220 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] ((offset <= 2147483645) && (i <= 2147483646)) && (((-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)) [2024-01-29 22:50:21,221 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,221 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:21,221 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L703] offset <= 2147483645 [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (offset <= 2147483645) && ((int )max <= -1) [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (e == 0) [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && ((int )max != 0) [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (offset <= 2147483645) [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,222 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (i <= 2147483646) [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (((-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)) [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (e == 0) [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (((-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)) [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] (-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL) [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] -2147483646 <= i [2024-01-29 22:50:21,237 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] ((-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] (-2147483646 <= i) && (offset <= 2147483645) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L710] ((-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && (e == 0) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (offset <= 2147483645) && ((int )max <= -1) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (e == 0) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (offset <= 2147483645) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (i <= 2147483646) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && ((int )max != 0) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (((-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)) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (e == 0) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && ((int )max <= -1)) && (((-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)) [2024-01-29 22:50:21,238 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] ((0 <= (int )max) && (offset <= 2147483645)) && (e == 0) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (((0 <= (int )max) && (offset <= 2147483645)) && (e == 0)) && (((-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)) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (0 <= (int )max) && (offset <= 2147483645) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= (int )max [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] ((0 <= (int )max) && (offset <= 2147483645)) && (i <= 2147483646) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (((offset <= 2147483645) && (i <= 2147483646)) && ((int )max <= -1)) && (e == 0) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] ((offset <= 2147483645) && (i <= 2147483646)) && ((int )max <= -1) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] ((((offset <= 2147483645) && (i <= 2147483646)) && ((int )max <= -1)) && (e == 0)) && (((-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)) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] offset <= 2147483645 [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] ((((offset <= 2147483645) && (i <= 2147483646)) && ((int )max <= -1)) && (e == 0)) && ((int )max != 0) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (unsigned long )arg == 0UL [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] ((offset <= 2147483645) && (i <= 2147483646)) && ((((-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)) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,239 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] offset <= 2147483645 [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (unsigned long )arg == 0UL [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (unsigned long )arg == 0UL [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (offset <= 2147483645) && (e == 0) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((offset <= 2147483645) && (e == 0)) && (((-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)) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] offset <= 2147483645 [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (0 <= (int )max) && (i <= 2147483646) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((0 <= (int )max) && (i <= 2147483646)) && (((-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)) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= (int )max [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (0 <= (int )max) && (offset <= 2147483645) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((0 <= (int )max) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-29 22:50:21,240 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:21,241 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (offset <= 2147483645) && (((-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)) [2024-01-29 22:50:21,241 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (offset <= 2147483645) && (e == 0) [2024-01-29 22:50:21,241 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) [2024-01-29 22:50:21,300 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:50:21,595 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] [2024-01-29 22:50:21,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:21,616 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 [2024-01-29 22:50:21,689 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 [2024-01-29 22:50:21,699 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 [2024-01-29 22:50:21,708 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 [2024-01-29 22:50:21,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:21,742 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:50:21,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21 WrapperNode [2024-01-29 22:50:21,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:21,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:21,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:50:21,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:50:21,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,811 INFO L138 Inliner]: procedures = 165, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-01-29 22:50:21,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:21,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:50:21,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:50:21,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:50:21,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,839 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]. [2024-01-29 22:50:21,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:50:21,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:50:21,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:50:21,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:50:21,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (1/1) ... [2024-01-29 22:50:21,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:21,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:21,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:50:21,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:50:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:50:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 22:50:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:50:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:50:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:50:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:50:21,919 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:50:22,008 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:50:22,010 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:50:22,362 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:50:22,362 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:50:22,451 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:50:22,453 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 22:50:22,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:22 BoogieIcfgContainer [2024-01-29 22:50:22,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:50:22,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:50:22,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:50:22,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:50:22,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:19" (1/4) ... [2024-01-29 22:50:22,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a55335f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:50:22, skipping insertion in model container [2024-01-29 22:50:22,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:50:21" (2/4) ... [2024-01-29 22:50:22,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a55335f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:50:22, skipping insertion in model container [2024-01-29 22:50:22,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:21" (3/4) ... [2024-01-29 22:50:22,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a55335f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:50:22, skipping insertion in model container [2024-01-29 22:50:22,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:22" (4/4) ... [2024-01-29 22:50:22,464 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym-pthread.i [2024-01-29 22:50:22,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:50:22,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-01-29 22:50:22,480 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:50:22,563 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:22,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 250 flow [2024-01-29 22:50:22,665 INFO L124 PetriNetUnfolderBase]: 4/125 cut-off events. [2024-01-29 22:50:22,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:22,670 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. [2024-01-29 22:50:22,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 250 flow [2024-01-29 22:50:22,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 250 flow [2024-01-29 22:50:22,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:22,697 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;@75b98d19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:22,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2024-01-29 22:50:22,701 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:22,702 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 22:50:22,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:22,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:22,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:50:22,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-29 22:50:22,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1727226778, now seen corresponding path program 1 times [2024-01-29 22:50:22,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:22,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7157456] [2024-01-29 22:50:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:22,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:22,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:22,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7157456] [2024-01-29 22:50:22,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7157456] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:22,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:22,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:50:22,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104438153] [2024-01-29 22:50:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:22,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:50:22,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:50:23,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:50:23,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-29 22:50:23,018 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) [2024-01-29 22:50:23,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:23,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-29 22:50:23,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:23,147 INFO L124 PetriNetUnfolderBase]: 29/359 cut-off events. [2024-01-29 22:50:23,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:23,148 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. [2024-01-29 22:50:23,151 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 17 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-01-29 22:50:23,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 122 transitions, 286 flow [2024-01-29 22:50:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:50:23,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:50:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2024-01-29 22:50:23,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970189701897019 [2024-01-29 22:50:23,169 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 250 flow. Second operand 3 states and 331 transitions. [2024-01-29 22:50:23,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 122 transitions, 286 flow [2024-01-29 22:50:23,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 122 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:23,176 INFO L231 Difference]: Finished difference. Result has 124 places, 122 transitions, 258 flow [2024-01-29 22:50:23,178 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} [2024-01-29 22:50:23,182 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2024-01-29 22:50:23,183 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 122 transitions, 258 flow [2024-01-29 22:50:23,183 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) [2024-01-29 22:50:23,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:23,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:23,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:50:23,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-29 22:50:23,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:23,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2117158978, now seen corresponding path program 1 times [2024-01-29 22:50:23,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:23,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141452941] [2024-01-29 22:50:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:23,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:23,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141452941] [2024-01-29 22:50:23,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141452941] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067037500] [2024-01-29 22:50:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:23,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:23,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:23,311 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) [2024-01-29 22:50:23,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-29 22:50:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:23,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 22:50:23,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:23,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:23,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067037500] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:23,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:23,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-01-29 22:50:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836556685] [2024-01-29 22:50:23,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:23,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:50:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:50:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:50:23,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-29 22:50:23,434 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) [2024-01-29 22:50:23,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:23,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-29 22:50:23,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:23,515 INFO L124 PetriNetUnfolderBase]: 29/362 cut-off events. [2024-01-29 22:50:23,515 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:23,518 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. [2024-01-29 22:50:23,520 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 17 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-01-29 22:50:23,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 125 transitions, 314 flow [2024-01-29 22:50:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:50:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:50:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2024-01-29 22:50:23,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8712737127371274 [2024-01-29 22:50:23,525 INFO L175 Difference]: Start difference. First operand has 124 places, 122 transitions, 258 flow. Second operand 6 states and 643 transitions. [2024-01-29 22:50:23,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 125 transitions, 314 flow [2024-01-29 22:50:23,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 125 transitions, 310 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:23,529 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 290 flow [2024-01-29 22:50:23,530 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} [2024-01-29 22:50:23,530 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-01-29 22:50:23,530 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 290 flow [2024-01-29 22:50:23,531 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) [2024-01-29 22:50:23,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:23,531 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:23,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-29 22:50:23,742 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 [2024-01-29 22:50:23,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-29 22:50:23,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash -966479258, now seen corresponding path program 2 times [2024-01-29 22:50:23,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:23,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27258556] [2024-01-29 22:50:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:23,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:23,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27258556] [2024-01-29 22:50:23,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27258556] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:23,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372907805] [2024-01-29 22:50:23,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 22:50:23,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:23,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:23,861 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) [2024-01-29 22:50:23,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-29 22:50:23,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 22:50:23,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 22:50:23,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 22:50:23,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-29 22:50:23,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 22:50:23,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372907805] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:23,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 22:50:23,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 22:50:23,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126515898] [2024-01-29 22:50:23,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:23,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:23,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:23,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:23,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:23,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 123 [2024-01-29 22:50:23,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:23,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:23,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 123 [2024-01-29 22:50:23,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:24,045 INFO L124 PetriNetUnfolderBase]: 31/369 cut-off events. [2024-01-29 22:50:24,045 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:50:24,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 369 events. 31/369 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1444 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 437. Up to 63 conditions per place. [2024-01-29 22:50:24,047 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 24 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2024-01-29 22:50:24,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 125 transitions, 342 flow [2024-01-29 22:50:24,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2024-01-29 22:50:24,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8556910569105691 [2024-01-29 22:50:24,049 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 290 flow. Second operand 4 states and 421 transitions. [2024-01-29 22:50:24,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 125 transitions, 342 flow [2024-01-29 22:50:24,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 328 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:24,052 INFO L231 Difference]: Finished difference. Result has 130 places, 122 transitions, 274 flow [2024-01-29 22:50:24,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=130, PETRI_TRANSITIONS=122} [2024-01-29 22:50:24,053 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2024-01-29 22:50:24,053 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 274 flow [2024-01-29 22:50:24,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:24,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:24,087 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-29 22:50:24,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:24,299 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 [2024-01-29 22:50:24,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-29 22:50:24,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:24,300 INFO L85 PathProgramCache]: Analyzing trace with hash 103840177, now seen corresponding path program 1 times [2024-01-29 22:50:24,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:24,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096684201] [2024-01-29 22:50:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:24,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:24,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:24,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096684201] [2024-01-29 22:50:24,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096684201] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:24,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012192500] [2024-01-29 22:50:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:24,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:24,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:24,391 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) [2024-01-29 22:50:24,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-29 22:50:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:24,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 22:50:24,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:24,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012192500] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:24,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-01-29 22:50:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841983915] [2024-01-29 22:50:24,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:24,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-29 22:50:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:24,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-29 22:50:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-01-29 22:50:24,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 123 [2024-01-29 22:50:24,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 274 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) [2024-01-29 22:50:24,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:24,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 123 [2024-01-29 22:50:24,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:24,570 INFO L124 PetriNetUnfolderBase]: 29/359 cut-off events. [2024-01-29 22:50:24,570 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:50:24,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 359 events. 29/359 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1387 event pairs, 22 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 422. Up to 66 conditions per place. [2024-01-29 22:50:24,572 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 17 selfloop transitions, 7 changer transitions 0/124 dead transitions. [2024-01-29 22:50:24,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 124 transitions, 334 flow [2024-01-29 22:50:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 22:50:24,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 22:50:24,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 850 transitions. [2024-01-29 22:50:24,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2024-01-29 22:50:24,574 INFO L175 Difference]: Start difference. First operand has 130 places, 122 transitions, 274 flow. Second operand 8 states and 850 transitions. [2024-01-29 22:50:24,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 124 transitions, 334 flow [2024-01-29 22:50:24,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 124 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:50:24,576 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 307 flow [2024-01-29 22:50:24,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=307, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2024-01-29 22:50:24,577 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 15 predicate places. [2024-01-29 22:50:24,577 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 307 flow [2024-01-29 22:50:24,578 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) [2024-01-29 22:50:24,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:24,578 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-29 22:50:24,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:24,789 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 [2024-01-29 22:50:24,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 98 more)] === [2024-01-29 22:50:24,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 911732401, now seen corresponding path program 2 times [2024-01-29 22:50:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250783766] [2024-01-29 22:50:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:24,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:24,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:24,840 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:24,841 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (100 of 101 remaining) [2024-01-29 22:50:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 101 remaining) [2024-01-29 22:50:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 101 remaining) [2024-01-29 22:50:24,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 101 remaining) [2024-01-29 22:50:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 101 remaining) [2024-01-29 22:50:24,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 101 remaining) [2024-01-29 22:50:24,847 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 101 remaining) [2024-01-29 22:50:24,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 101 remaining) [2024-01-29 22:50:24,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 101 remaining) [2024-01-29 22:50:24,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 101 remaining) [2024-01-29 22:50:24,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 101 remaining) [2024-01-29 22:50:24,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 101 remaining) [2024-01-29 22:50:24,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 101 remaining) [2024-01-29 22:50:24,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 101 remaining) [2024-01-29 22:50:24,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 101 remaining) [2024-01-29 22:50:24,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 101 remaining) [2024-01-29 22:50:24,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 101 remaining) [2024-01-29 22:50:24,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 101 remaining) [2024-01-29 22:50:24,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 101 remaining) [2024-01-29 22:50:24,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 101 remaining) [2024-01-29 22:50:24,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (56 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 101 remaining) [2024-01-29 22:50:24,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 101 remaining) [2024-01-29 22:50:24,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 101 remaining) [2024-01-29 22:50:24,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 101 remaining) [2024-01-29 22:50:24,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 101 remaining) [2024-01-29 22:50:24,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 101 remaining) [2024-01-29 22:50:24,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 101 remaining) [2024-01-29 22:50:24,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 101 remaining) [2024-01-29 22:50:24,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 101 remaining) [2024-01-29 22:50:24,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 101 remaining) [2024-01-29 22:50:24,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 101 remaining) [2024-01-29 22:50:24,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 101 remaining) [2024-01-29 22:50:24,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 101 remaining) [2024-01-29 22:50:24,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 101 remaining) [2024-01-29 22:50:24,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 101 remaining) [2024-01-29 22:50:24,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 101 remaining) [2024-01-29 22:50:24,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (6 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 101 remaining) [2024-01-29 22:50:24,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 101 remaining) [2024-01-29 22:50:24,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:50:24,870 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 22:50:24,875 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 22:50:24,875 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 22:50:24,947 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:24,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 239 transitions, 488 flow [2024-01-29 22:50:24,993 INFO L124 PetriNetUnfolderBase]: 7/244 cut-off events. [2024-01-29 22:50:24,994 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:50:24,996 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. [2024-01-29 22:50:24,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 239 transitions, 488 flow [2024-01-29 22:50:25,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 239 transitions, 488 flow [2024-01-29 22:50:25,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:25,004 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;@75b98d19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:25,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2024-01-29 22:50:25,006 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:25,006 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 22:50:25,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:25,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:25,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:50:25,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-29 22:50:25,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1048366105, now seen corresponding path program 1 times [2024-01-29 22:50:25,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:25,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087207798] [2024-01-29 22:50:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:25,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087207798] [2024-01-29 22:50:25,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087207798] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:25,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:25,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:50:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335602360] [2024-01-29 22:50:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:25,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:50:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:50:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:50:25,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-29 22:50:25,037 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) [2024-01-29 22:50:25,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:25,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-29 22:50:25,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:25,603 INFO L124 PetriNetUnfolderBase]: 927/5985 cut-off events. [2024-01-29 22:50:25,604 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 22:50:25,615 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. [2024-01-29 22:50:25,647 INFO L140 encePairwiseOnDemand]: 233/239 looper letters, 30 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2024-01-29 22:50:25,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 237 transitions, 548 flow [2024-01-29 22:50:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:50:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:50:25,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2024-01-29 22:50:25,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9079497907949791 [2024-01-29 22:50:25,649 INFO L175 Difference]: Start difference. First operand has 237 places, 239 transitions, 488 flow. Second operand 3 states and 651 transitions. [2024-01-29 22:50:25,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 237 transitions, 548 flow [2024-01-29 22:50:25,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 237 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:25,653 INFO L231 Difference]: Finished difference. Result has 239 places, 237 transitions, 494 flow [2024-01-29 22:50:25,653 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} [2024-01-29 22:50:25,655 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 2 predicate places. [2024-01-29 22:50:25,656 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 237 transitions, 494 flow [2024-01-29 22:50:25,656 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) [2024-01-29 22:50:25,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:25,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:25,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:50:25,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-29 22:50:25,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:25,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1976551136, now seen corresponding path program 1 times [2024-01-29 22:50:25,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:25,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548809947] [2024-01-29 22:50:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548809947] [2024-01-29 22:50:25,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548809947] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918015675] [2024-01-29 22:50:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:25,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:25,683 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) [2024-01-29 22:50:25,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-29 22:50:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 22:50:25,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918015675] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:25,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:25,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-01-29 22:50:25,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547713335] [2024-01-29 22:50:25,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:25,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:50:25,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:50:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:50:25,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-29 22:50:25,765 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) [2024-01-29 22:50:25,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:25,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-29 22:50:25,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:26,367 INFO L124 PetriNetUnfolderBase]: 927/5988 cut-off events. [2024-01-29 22:50:26,367 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 22:50:26,376 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. [2024-01-29 22:50:26,396 INFO L140 encePairwiseOnDemand]: 236/239 looper letters, 30 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2024-01-29 22:50:26,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 240 transitions, 576 flow [2024-01-29 22:50:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:50:26,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:50:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1268 transitions. [2024-01-29 22:50:26,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8842398884239888 [2024-01-29 22:50:26,399 INFO L175 Difference]: Start difference. First operand has 239 places, 237 transitions, 494 flow. Second operand 6 states and 1268 transitions. [2024-01-29 22:50:26,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 240 transitions, 576 flow [2024-01-29 22:50:26,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 240 transitions, 572 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:26,403 INFO L231 Difference]: Finished difference. Result has 246 places, 240 transitions, 526 flow [2024-01-29 22:50:26,403 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} [2024-01-29 22:50:26,404 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 9 predicate places. [2024-01-29 22:50:26,404 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 240 transitions, 526 flow [2024-01-29 22:50:26,405 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) [2024-01-29 22:50:26,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:26,405 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:26,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-01-29 22:50:26,631 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 [2024-01-29 22:50:26,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-29 22:50:26,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1181963737, now seen corresponding path program 2 times [2024-01-29 22:50:26,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:26,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803247647] [2024-01-29 22:50:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:26,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803247647] [2024-01-29 22:50:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803247647] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453288785] [2024-01-29 22:50:26,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 22:50:26,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:26,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:26,712 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) [2024-01-29 22:50:26,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-29 22:50:26,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 22:50:26,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 22:50:26,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 22:50:26,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-29 22:50:26,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 22:50:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453288785] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:26,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 22:50:26,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 22:50:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330874208] [2024-01-29 22:50:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:26,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:26,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:26,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 239 [2024-01-29 22:50:26,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 240 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:26,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:26,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 239 [2024-01-29 22:50:26,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:27,386 INFO L124 PetriNetUnfolderBase]: 988/6631 cut-off events. [2024-01-29 22:50:27,387 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-29 22:50:27,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8183 conditions, 6631 events. 988/6631 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 67448 event pairs, 409 based on Foata normal form. 0/4193 useless extension candidates. Maximal degree in co-relation 8148. Up to 1412 conditions per place. [2024-01-29 22:50:27,422 INFO L140 encePairwiseOnDemand]: 234/239 looper letters, 50 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2024-01-29 22:50:27,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 253 transitions, 661 flow [2024-01-29 22:50:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:27,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 855 transitions. [2024-01-29 22:50:27,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8943514644351465 [2024-01-29 22:50:27,424 INFO L175 Difference]: Start difference. First operand has 246 places, 240 transitions, 526 flow. Second operand 4 states and 855 transitions. [2024-01-29 22:50:27,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 253 transitions, 661 flow [2024-01-29 22:50:27,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 253 transitions, 647 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:27,428 INFO L231 Difference]: Finished difference. Result has 245 places, 237 transitions, 510 flow [2024-01-29 22:50:27,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=510, PETRI_PLACES=245, PETRI_TRANSITIONS=237} [2024-01-29 22:50:27,429 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 8 predicate places. [2024-01-29 22:50:27,429 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 237 transitions, 510 flow [2024-01-29 22:50:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:27,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:27,430 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:27,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:27,659 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 [2024-01-29 22:50:27,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-29 22:50:27,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2013828979, now seen corresponding path program 1 times [2024-01-29 22:50:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:27,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617192265] [2024-01-29 22:50:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:27,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617192265] [2024-01-29 22:50:27,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617192265] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:27,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749285468] [2024-01-29 22:50:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:27,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:27,812 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) [2024-01-29 22:50:27,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-29 22:50:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:27,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 22:50:27,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749285468] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:27,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-01-29 22:50:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223895020] [2024-01-29 22:50:27,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:27,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-29 22:50:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-29 22:50:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-01-29 22:50:27,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 239 [2024-01-29 22:50:27,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 237 transitions, 510 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) [2024-01-29 22:50:27,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:27,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 239 [2024-01-29 22:50:27,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:28,607 INFO L124 PetriNetUnfolderBase]: 927/5976 cut-off events. [2024-01-29 22:50:28,608 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-29 22:50:28,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7436 conditions, 5976 events. 927/5976 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 59405 event pairs, 728 based on Foata normal form. 2/3770 useless extension candidates. Maximal degree in co-relation 7399. Up to 1390 conditions per place. [2024-01-29 22:50:28,635 INFO L140 encePairwiseOnDemand]: 236/239 looper letters, 30 selfloop transitions, 7 changer transitions 0/239 dead transitions. [2024-01-29 22:50:28,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 239 transitions, 596 flow [2024-01-29 22:50:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 22:50:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 22:50:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1679 transitions. [2024-01-29 22:50:28,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781380753138075 [2024-01-29 22:50:28,638 INFO L175 Difference]: Start difference. First operand has 245 places, 237 transitions, 510 flow. Second operand 8 states and 1679 transitions. [2024-01-29 22:50:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 239 transitions, 596 flow [2024-01-29 22:50:28,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 239 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:50:28,642 INFO L231 Difference]: Finished difference. Result has 252 places, 239 transitions, 543 flow [2024-01-29 22:50:28,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=543, PETRI_PLACES=252, PETRI_TRANSITIONS=239} [2024-01-29 22:50:28,642 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, 15 predicate places. [2024-01-29 22:50:28,643 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 239 transitions, 543 flow [2024-01-29 22:50:28,644 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) [2024-01-29 22:50:28,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:28,644 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:28,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:28,855 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 [2024-01-29 22:50:28,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 148 more)] === [2024-01-29 22:50:28,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1823779923, now seen corresponding path program 2 times [2024-01-29 22:50:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:28,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467864016] [2024-01-29 22:50:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:28,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:28,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:28,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:28,880 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (150 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (149 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (148 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (147 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (146 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (145 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (144 of 151 remaining) [2024-01-29 22:50:28,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (143 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (142 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (141 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (140 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (139 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (138 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (137 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (136 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (135 of 151 remaining) [2024-01-29 22:50:28,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (134 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (133 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 151 remaining) [2024-01-29 22:50:28,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 151 remaining) [2024-01-29 22:50:28,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 151 remaining) [2024-01-29 22:50:28,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (106 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 151 remaining) [2024-01-29 22:50:28,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (99 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 151 remaining) [2024-01-29 22:50:28,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 151 remaining) [2024-01-29 22:50:28,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 151 remaining) [2024-01-29 22:50:28,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 151 remaining) [2024-01-29 22:50:28,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (55 of 151 remaining) [2024-01-29 22:50:28,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 151 remaining) [2024-01-29 22:50:28,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err49ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 151 remaining) [2024-01-29 22:50:28,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 151 remaining) [2024-01-29 22:50:28,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 151 remaining) [2024-01-29 22:50:28,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 151 remaining) [2024-01-29 22:50:28,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONERROR_FUNCTION (6 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err44ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err45ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err46ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 151 remaining) [2024-01-29 22:50:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err47ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 151 remaining) [2024-01-29 22:50:28,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err48ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 151 remaining) [2024-01-29 22:50:28,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:50:28,898 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 22:50:28,904 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 22:50:28,904 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:50:28,925 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-29 22:50:28,933 INFO L503 ceAbstractionStarter]: Automizer considered 49 witness invariants [2024-01-29 22:50:28,933 INFO L504 ceAbstractionStarter]: WitnessConsidered=49 [2024-01-29 22:50:28,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:50:28 BasicIcfg [2024-01-29 22:50:28,934 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:50:28,935 INFO L158 Benchmark]: Toolchain (without parser) took 7786.99ms. Allocated memory was 142.6MB in the beginning and 601.9MB in the end (delta: 459.3MB). Free memory was 64.4MB in the beginning and 348.1MB in the end (delta: -283.7MB). Peak memory consumption was 176.0MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,935 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:28,935 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:28,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.45ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 64.3MB in the beginning and 131.9MB in the end (delta: -67.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.33ms. Allocated memory is still 184.5MB. Free memory was 131.9MB in the beginning and 128.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,936 INFO L158 Benchmark]: Boogie Preprocessor took 40.30ms. Allocated memory is still 184.5MB. Free memory was 128.8MB in the beginning and 125.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,937 INFO L158 Benchmark]: RCFGBuilder took 600.72ms. Allocated memory is still 184.5MB. Free memory was 125.6MB in the beginning and 79.5MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,937 INFO L158 Benchmark]: TraceAbstraction took 6477.22ms. Allocated memory was 184.5MB in the beginning and 601.9MB in the end (delta: 417.3MB). Free memory was 79.5MB in the beginning and 348.1MB in the end (delta: -268.6MB). Peak memory consumption was 148.7MB. Max. memory is 16.1GB. [2024-01-29 22:50:28,938 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 0.17ms. Allocated memory is still 142.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.45ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 64.3MB in the beginning and 131.9MB in the end (delta: -67.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.33ms. Allocated memory is still 184.5MB. Free memory was 131.9MB in the beginning and 128.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.30ms. Allocated memory is still 184.5MB. Free memory was 128.8MB in the beginning and 125.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.72ms. Allocated memory is still 184.5MB. Free memory was 125.6MB in the beginning and 79.5MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6477.22ms. Allocated memory was 184.5MB in the beginning and 601.9MB in the end (delta: 417.3MB). Free memory was 79.5MB in the beginning and 348.1MB in the end (delta: -268.6MB). Peak memory consumption was 148.7MB. 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 183 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 183 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=307occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s 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: 3.9s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 300 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=543occurred 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, 0.3s 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! [2024-01-29 22:50:28,964 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