./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-07 21:18:10,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-07 21:18:10,075 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-07 21:18:10,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-07 21:18:10,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-07 21:18:10,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-07 21:18:10,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-07 21:18:10,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-07 21:18:10,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-07 21:18:10,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-07 21:18:10,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-07 21:18:10,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-07 21:18:10,111 INFO L153 SettingsManager]: * Use SBE=true [2024-09-07 21:18:10,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-07 21:18:10,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-07 21:18:10,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-07 21:18:10,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-07 21:18:10,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-07 21:18:10,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-07 21:18:10,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-07 21:18:10,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-07 21:18:10,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-07 21:18:10,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-07 21:18:10,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-07 21:18:10,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-07 21:18:10,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-07 21:18:10,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-07 21:18:10,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-07 21:18:10,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-07 21:18:10,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-07 21:18:10,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:18:10,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-07 21:18:10,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-07 21:18:10,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-07 21:18:10,117 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-07 21:18:10,118 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-07 21:18:10,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-07 21:18:10,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-07 21:18:10,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-07 21:18:10,119 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-07 21:18:10,119 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-07 21:18:10,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-07 21:18:10,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-07 21:18:10,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-07 21:18:10,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-07 21:18:10,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-07 21:18:10,332 INFO L274 PluginConnector]: CDTParser initialized [2024-09-07 21:18:10,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2024-09-07 21:18:11,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-07 21:18:11,646 INFO L384 CDTParser]: Found 1 translation units. [2024-09-07 21:18:11,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2024-09-07 21:18:11,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9d1f68b69/5bbfb8ce5dce488bbec0ea5021112e52/FLAG37119249d [2024-09-07 21:18:12,050 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9d1f68b69/5bbfb8ce5dce488bbec0ea5021112e52 [2024-09-07 21:18:12,052 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-07 21:18:12,052 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-07 21:18:12,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml [2024-09-07 21:18:12,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-07 21:18:12,112 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-07 21:18:12,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-07 21:18:12,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-07 21:18:12,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-07 21:18:12,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:18:12" (1/2) ... [2024-09-07 21:18:12,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e83602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:18:12, skipping insertion in model container [2024-09-07 21:18:12,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:18:12" (1/2) ... [2024-09-07 21:18:12,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@132a2f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:18:12, skipping insertion in model container [2024-09-07 21:18:12,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:12" (2/2) ... [2024-09-07 21:18:12,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e83602 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12, skipping insertion in model container [2024-09-07 21:18:12,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:12" (2/2) ... [2024-09-07 21:18:12,134 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-07 21:18:12,135 INFO L1541 ArrayList]: Location invariant before [L92-L92] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-09-07 21:18:12,135 INFO L1541 ArrayList]: Location invariant before [L93-L93] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-09-07 21:18:12,135 INFO L1541 ArrayList]: Location invariant before [L139-L139] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-09-07 21:18:12,135 INFO L1541 ArrayList]: Location invariant before [L140-L140] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-09-07 21:18:12,136 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-07 21:18:12,136 INFO L1541 ArrayList]: ghost_update [L138-L138] multithreaded = 1; [2024-09-07 21:18:12,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-07 21:18:12,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:18:12,310 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-07 21:18:12,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:18:12,443 INFO L204 MainTranslator]: Completed translation [2024-09-07 21:18:12,447 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12 WrapperNode [2024-09-07 21:18:12,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-07 21:18:12,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-07 21:18:12,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-07 21:18:12,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-07 21:18:12,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,492 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 260 [2024-09-07 21:18:12,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-07 21:18:12,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-07 21:18:12,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-07 21:18:12,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-07 21:18:12,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-07 21:18:12,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-07 21:18:12,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-07 21:18:12,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-07 21:18:12,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (1/1) ... [2024-09-07 21:18:12,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:18:12,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:12,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-07 21:18:12,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-07 21:18:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-07 21:18:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-07 21:18:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-07 21:18:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-07 21:18:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-07 21:18:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-07 21:18:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-07 21:18:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-07 21:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-07 21:18:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-07 21:18:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-07 21:18:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-07 21:18:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-07 21:18:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-07 21:18:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-07 21:18:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-07 21:18:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-07 21:18:12,606 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-07 21:18:12,693 INFO L242 CfgBuilder]: Building ICFG [2024-09-07 21:18:12,695 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-07 21:18:13,044 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-07 21:18:13,044 INFO L291 CfgBuilder]: Performing block encoding [2024-09-07 21:18:13,293 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-07 21:18:13,293 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-07 21:18:13,294 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:18:13 BoogieIcfgContainer [2024-09-07 21:18:13,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-07 21:18:13,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-07 21:18:13,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-07 21:18:13,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-07 21:18:13,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 09:18:12" (1/4) ... [2024-09-07 21:18:13,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d38e233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 09:18:13, skipping insertion in model container [2024-09-07 21:18:13,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:12" (2/4) ... [2024-09-07 21:18:13,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d38e233 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:18:13, skipping insertion in model container [2024-09-07 21:18:13,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:12" (3/4) ... [2024-09-07 21:18:13,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d38e233 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:18:13, skipping insertion in model container [2024-09-07 21:18:13,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:18:13" (4/4) ... [2024-09-07 21:18:13,302 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-09-07 21:18:13,316 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-07 21:18:13,316 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-07 21:18:13,316 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-07 21:18:13,376 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-09-07 21:18:13,414 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:13,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-07 21:18:13,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:13,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-07 21:18:13,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-07 21:18:13,447 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-07 21:18:13,459 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-07 21:18:13,465 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@55a8af8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:13,465 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-07 21:18:13,681 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:13,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1897355458, now seen corresponding path program 1 times [2024-09-07 21:18:13,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160408926] [2024-09-07 21:18:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:14,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:14,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160408926] [2024-09-07 21:18:14,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160408926] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:14,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:18:14,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-07 21:18:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289776319] [2024-09-07 21:18:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:14,554 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:18:14,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:18:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-07 21:18:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:14,574 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:14,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-09-07 21:18:14,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:14,626 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-07 21:18:14,626 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:14,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:14,628 INFO L85 PathProgramCache]: Analyzing trace with hash 966679548, now seen corresponding path program 1 times [2024-09-07 21:18:14,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:14,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272058388] [2024-09-07 21:18:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:14,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272058388] [2024-09-07 21:18:15,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272058388] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527540285] [2024-09-07 21:18:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:15,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:15,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:15,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:15,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-07 21:18:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:15,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-07 21:18:15,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:15,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:16,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527540285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:16,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:16,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-07 21:18:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24907298] [2024-09-07 21:18:16,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:16,191 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-07 21:18:16,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-07 21:18:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-07 21:18:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:16,193 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:16,193 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 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) [2024-09-07 21:18:16,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:16,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:17,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-07 21:18:17,224 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-07 21:18:17,225 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:17,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:17,225 INFO L85 PathProgramCache]: Analyzing trace with hash 513933075, now seen corresponding path program 1 times [2024-09-07 21:18:17,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:17,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636644377] [2024-09-07 21:18:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:17,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:17,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636644377] [2024-09-07 21:18:17,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636644377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33441997] [2024-09-07 21:18:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:17,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:17,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:17,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:17,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-07 21:18:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:17,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-07 21:18:17,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:17,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:17,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33441997] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:17,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:18:17,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-09-07 21:18:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342199720] [2024-09-07 21:18:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:17,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-07 21:18:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:17,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-07 21:18:17,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-07 21:18:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:17,598 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:17,598 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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) [2024-09-07 21:18:17,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:17,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:17,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:17,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:17,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:17,888 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:17,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1847415302, now seen corresponding path program 1 times [2024-09-07 21:18:17,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143137762] [2024-09-07 21:18:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:18,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:18,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143137762] [2024-09-07 21:18:18,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143137762] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:18,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596640751] [2024-09-07 21:18:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:18,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:18,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:18,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:18,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-07 21:18:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:18,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-07 21:18:18,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:18,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:20,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596640751] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:20,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:20,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 18 [2024-09-07 21:18:20,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595082932] [2024-09-07 21:18:20,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:20,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-07 21:18:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:20,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-07 21:18:20,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-09-07 21:18:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:20,365 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:20,365 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:20,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:20,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:20,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:20,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:21,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:21,740 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:21,741 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:21,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1133492761, now seen corresponding path program 1 times [2024-09-07 21:18:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3258952] [2024-09-07 21:18:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:22,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3258952] [2024-09-07 21:18:22,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3258952] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267754805] [2024-09-07 21:18:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:22,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:22,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:22,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:22,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-07 21:18:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:22,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-07 21:18:22,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:22,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267754805] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:23,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 23 [2024-09-07 21:18:23,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624352173] [2024-09-07 21:18:23,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:23,693 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-07 21:18:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-07 21:18:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-09-07 21:18:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:23,694 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:23,694 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 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) [2024-09-07 21:18:23,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:23,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:23,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:23,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:23,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:26,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-07 21:18:26,736 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:26,737 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:26,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:26,737 INFO L85 PathProgramCache]: Analyzing trace with hash -229274137, now seen corresponding path program 1 times [2024-09-07 21:18:26,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:26,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585363808] [2024-09-07 21:18:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:26,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:26,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:26,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585363808] [2024-09-07 21:18:26,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585363808] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:26,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244369619] [2024-09-07 21:18:26,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:26,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:26,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:26,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:26,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-07 21:18:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:26,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-07 21:18:26,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:27,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:27,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244369619] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:27,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:18:27,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2024-09-07 21:18:27,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788074619] [2024-09-07 21:18:27,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:27,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-07 21:18:27,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:27,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-07 21:18:27,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-09-07 21:18:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:27,136 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:27,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 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) [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:27,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:18:27,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:27,704 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:27,705 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:27,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1528929752, now seen corresponding path program 1 times [2024-09-07 21:18:27,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:27,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317300434] [2024-09-07 21:18:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:28,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:28,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317300434] [2024-09-07 21:18:28,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317300434] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:28,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915851891] [2024-09-07 21:18:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:28,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:28,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:28,313 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:28,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-07 21:18:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:28,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-07 21:18:28,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:28,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:30,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915851891] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:30,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:30,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 26 [2024-09-07 21:18:30,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754157687] [2024-09-07 21:18:30,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:30,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-07 21:18:30,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-07 21:18:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-09-07 21:18:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:30,518 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:30,519 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.3703703703703702) internal successors, (91), 27 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:18:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:18:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:18:40,571 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-07 21:18:40,571 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-07 21:18:40,571 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-07 21:18:40,571 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-07 21:18:40,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-07 21:18:40,772 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-07 21:18:40,777 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-07 21:18:40,778 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (1/2) [2024-09-07 21:18:40,780 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:40,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-07 21:18:40,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:40,782 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-07 21:18:40,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-09-07 21:18:40,786 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-07 21:18:40,787 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork2 ======== [2024-09-07 21:18:40,787 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@55a8af8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:40,787 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-07 21:18:40,854 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:40,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash 350557628, now seen corresponding path program 1 times [2024-09-07 21:18:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995247859] [2024-09-07 21:18:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:40,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:41,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:41,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:41,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995247859] [2024-09-07 21:18:41,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995247859] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:41,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:18:41,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-07 21:18:41,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814395331] [2024-09-07 21:18:41,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:41,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:18:41,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:41,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:18:41,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-07 21:18:41,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:41,170 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:41,170 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-09-07 21:18:41,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:41,204 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-07 21:18:41,205 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:41,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash 927189438, now seen corresponding path program 1 times [2024-09-07 21:18:41,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:41,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979267716] [2024-09-07 21:18:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:41,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979267716] [2024-09-07 21:18:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979267716] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277294703] [2024-09-07 21:18:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:41,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:41,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:41,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-07 21:18:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:41,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-07 21:18:41,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:41,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:42,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277294703] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:42,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:42,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2024-09-07 21:18:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787882254] [2024-09-07 21:18:42,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:42,229 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-07 21:18:42,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:42,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-07 21:18:42,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-07 21:18:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:42,230 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:42,230 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 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) [2024-09-07 21:18:42,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:42,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:42,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:42,994 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:42,995 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:42,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1570098512, now seen corresponding path program 1 times [2024-09-07 21:18:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:42,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056030007] [2024-09-07 21:18:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:43,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056030007] [2024-09-07 21:18:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056030007] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787484759] [2024-09-07 21:18:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:43,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:43,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:43,090 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:43,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-07 21:18:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:43,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-07 21:18:43,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:43,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:43,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787484759] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:43,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:18:43,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-09-07 21:18:43,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631437551] [2024-09-07 21:18:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:43,282 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-07 21:18:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:43,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-07 21:18:43,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-07 21:18:43,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:43,283 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:43,283 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-09-07 21:18:43,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:43,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:43,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:43,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:43,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-07 21:18:43,550 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:43,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2068864362, now seen corresponding path program 1 times [2024-09-07 21:18:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:43,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722966739] [2024-09-07 21:18:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:43,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:43,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:43,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722966739] [2024-09-07 21:18:43,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722966739] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:43,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457123035] [2024-09-07 21:18:43,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:43,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:43,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:43,831 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:43,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-07 21:18:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:43,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-07 21:18:43,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:44,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457123035] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:45,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 19 [2024-09-07 21:18:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101310306] [2024-09-07 21:18:45,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:45,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-07 21:18:45,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-07 21:18:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-09-07 21:18:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:45,809 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:45,809 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:45,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:45,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:45,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:45,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:46,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:47,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:47,055 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:47,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:47,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1436460263, now seen corresponding path program 1 times [2024-09-07 21:18:47,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:47,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993985441] [2024-09-07 21:18:47,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:47,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:47,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993985441] [2024-09-07 21:18:47,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993985441] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:47,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350580138] [2024-09-07 21:18:47,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:47,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:47,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:47,388 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:47,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-07 21:18:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:47,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-07 21:18:47,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:47,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:48,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350580138] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:48,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:48,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 23 [2024-09-07 21:18:48,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802718870] [2024-09-07 21:18:48,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:48,867 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-07 21:18:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:48,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-07 21:18:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-09-07 21:18:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:48,868 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:48,868 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 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) [2024-09-07 21:18:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:48,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:52,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:52,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-07 21:18:52,258 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:52,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:52,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1799734737, now seen corresponding path program 1 times [2024-09-07 21:18:52,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:52,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349653541] [2024-09-07 21:18:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:52,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349653541] [2024-09-07 21:18:52,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349653541] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320611531] [2024-09-07 21:18:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:52,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:52,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:52,360 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:52,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-07 21:18:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:52,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-07 21:18:52,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:52,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:52,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320611531] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:52,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:18:52,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2024-09-07 21:18:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109177935] [2024-09-07 21:18:52,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:52,588 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-07 21:18:52,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:52,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-07 21:18:52,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-09-07 21:18:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:52,589 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:52,589 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:52,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:53,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:18:53,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:53,284 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-07 21:18:53,284 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:53,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash -239467346, now seen corresponding path program 1 times [2024-09-07 21:18:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:53,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262157880] [2024-09-07 21:18:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:53,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262157880] [2024-09-07 21:18:53,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262157880] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:53,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661546834] [2024-09-07 21:18:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:53,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:53,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:53,816 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:53,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-07 21:18:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:53,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-07 21:18:53,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:54,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661546834] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:55,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:55,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 26 [2024-09-07 21:18:55,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763960279] [2024-09-07 21:18:55,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:55,974 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-07 21:18:55,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:55,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-07 21:18:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-09-07 21:18:55,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:55,975 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:55,975 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.3703703703703702) internal successors, (91), 27 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:55,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:18:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:19:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:19:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-07 21:19:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-07 21:19:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-07 21:19:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:19:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:19:05,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-07 21:19:05,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-07 21:19:05,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-07 21:19:05,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork2Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-07 21:19:05,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-07 21:19:05,709 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-07 21:19:05,711 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-07 21:19:05,711 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE (2/2) [2024-09-07 21:19:05,711 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-07 21:19:05,711 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-07 21:19:05,713 INFO L469 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-09-07 21:19:05,713 INFO L470 ceAbstractionStarter]: WitnessConsidered=4 [2024-09-07 21:19:05,714 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 09:19:05 BasicIcfg [2024-09-07 21:19:05,714 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-07 21:19:05,714 INFO L158 Benchmark]: Toolchain (without parser) took 53602.93ms. Allocated memory was 180.4MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 106.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-09-07 21:19:05,714 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.95ms. Allocated memory is still 180.4MB. Free memory was 105.9MB in the beginning and 149.0MB in the end (delta: -43.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.58ms. Allocated memory is still 180.4MB. Free memory was 149.0MB in the beginning and 146.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: Boogie Preprocessor took 39.83ms. Allocated memory is still 180.4MB. Free memory was 146.4MB in the beginning and 144.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: RCFGBuilder took 760.03ms. Allocated memory is still 180.4MB. Free memory was 144.0MB in the beginning and 143.6MB in the end (delta: 423.5kB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. [2024-09-07 21:19:05,715 INFO L158 Benchmark]: TraceAbstraction took 52419.13ms. Allocated memory was 180.4MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 142.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-09-07 21:19:05,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.95ms. Allocated memory is still 180.4MB. Free memory was 105.9MB in the beginning and 149.0MB in the end (delta: -43.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.58ms. Allocated memory is still 180.4MB. Free memory was 149.0MB in the beginning and 146.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.83ms. Allocated memory is still 180.4MB. Free memory was 146.4MB in the beginning and 144.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 760.03ms. Allocated memory is still 180.4MB. Free memory was 144.0MB in the beginning and 143.6MB in the end (delta: 423.5kB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. * TraceAbstraction took 52419.13ms. Allocated memory was 180.4MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 142.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 857435, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 70243, dependent conditional: 70171, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 792608, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 5416, dependent conditional: 5344, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 792608, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 5416, dependent conditional: 5344, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 155174, dependent conditional: 155102, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 121193, independent unconditional: 665999, dependent: 155174, dependent conditional: 22286, dependent unconditional: 132888, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 121193, independent unconditional: 665999, dependent: 155174, dependent conditional: 22286, dependent unconditional: 132888, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3525, independent: 3210, independent conditional: 272, independent unconditional: 2938, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3525, independent: 2924, independent conditional: 0, independent unconditional: 2924, dependent: 601, dependent conditional: 0, dependent unconditional: 601, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 601, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 601, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2333, independent: 1287, independent conditional: 1160, independent unconditional: 126, dependent: 1046, dependent conditional: 752, dependent unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 942366, independent: 783982, independent conditional: 120921, independent unconditional: 663061, dependent: 154859, dependent conditional: 22063, dependent unconditional: 132796, unknown: 3525, unknown conditional: 495, unknown unconditional: 3030] , Statistics on independence cache: Total cache size (in pairs): 3525, Positive cache size: 3210, Positive conditional cache size: 272, Positive unconditional cache size: 2938, Negative cache size: 315, Negative conditional cache size: 223, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 795489, Maximal queried relation: 6, Independence queries for same thread: 64827, Persistent sets #1 benchmarks: Persistent set computation time: 0.6s, Number of persistent set computation: 4128, Number of trivial persistent sets: 3238, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3398, independent: 3326, independent conditional: 0, independent unconditional: 3326, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 857435, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 70243, dependent conditional: 70171, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 792608, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 5416, dependent conditional: 5344, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 792608, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 5416, dependent conditional: 5344, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 783866, independent unconditional: 3326, dependent: 155174, dependent conditional: 155102, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 121193, independent unconditional: 665999, dependent: 155174, dependent conditional: 22286, dependent unconditional: 132888, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 942366, independent: 787192, independent conditional: 121193, independent unconditional: 665999, dependent: 155174, dependent conditional: 22286, dependent unconditional: 132888, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3525, independent: 3210, independent conditional: 272, independent unconditional: 2938, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3525, independent: 2924, independent conditional: 0, independent unconditional: 2924, dependent: 601, dependent conditional: 0, dependent unconditional: 601, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 601, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 601, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 315, dependent conditional: 223, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2333, independent: 1287, independent conditional: 1160, independent unconditional: 126, dependent: 1046, dependent conditional: 752, dependent unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 942366, independent: 783982, independent conditional: 120921, independent unconditional: 663061, dependent: 154859, dependent conditional: 22063, dependent unconditional: 132796, unknown: 3525, unknown conditional: 495, unknown unconditional: 3030] , Statistics on independence cache: Total cache size (in pairs): 3525, Positive cache size: 3210, Positive conditional cache size: 272, Positive unconditional cache size: 2938, Negative cache size: 315, Negative conditional cache size: 223, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 795489, Maximal queried relation: 6, Independence queries for same thread: 64827 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1099232, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 88928, dependent conditional: 88856, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1017872, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 7568, dependent conditional: 7496, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1017872, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 7568, dependent conditional: 7496, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 204110, dependent conditional: 204038, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 151964, independent unconditional: 858340, dependent: 204110, dependent conditional: 35603, dependent unconditional: 168507, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 151964, independent unconditional: 858340, dependent: 204110, dependent conditional: 35603, dependent unconditional: 168507, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3452, independent: 3107, independent conditional: 297, independent unconditional: 2810, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3452, independent: 2795, independent conditional: 0, independent unconditional: 2795, dependent: 657, dependent conditional: 0, dependent unconditional: 657, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 657, independent: 312, independent conditional: 297, independent unconditional: 15, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 657, independent: 312, independent conditional: 297, independent unconditional: 15, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2606, independent: 1601, independent conditional: 1545, independent unconditional: 56, dependent: 1005, dependent conditional: 744, dependent unconditional: 261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1214414, independent: 1007197, independent conditional: 151667, independent unconditional: 855530, dependent: 203765, dependent conditional: 35350, dependent unconditional: 168415, unknown: 3452, unknown conditional: 550, unknown unconditional: 2902] , Statistics on independence cache: Total cache size (in pairs): 3452, Positive cache size: 3107, Positive conditional cache size: 297, Positive unconditional cache size: 2810, Negative cache size: 345, Negative conditional cache size: 253, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1023585, Maximal queried relation: 6, Independence queries for same thread: 81360, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 5037, Number of trivial persistent sets: 3968, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3262, independent: 3190, independent conditional: 0, independent unconditional: 3190, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1099232, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 88928, dependent conditional: 88856, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1017872, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 7568, dependent conditional: 7496, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1017872, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 7568, dependent conditional: 7496, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 1007114, independent unconditional: 3190, dependent: 204110, dependent conditional: 204038, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 151964, independent unconditional: 858340, dependent: 204110, dependent conditional: 35603, dependent unconditional: 168507, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1214414, independent: 1010304, independent conditional: 151964, independent unconditional: 858340, dependent: 204110, dependent conditional: 35603, dependent unconditional: 168507, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3452, independent: 3107, independent conditional: 297, independent unconditional: 2810, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3452, independent: 2795, independent conditional: 0, independent unconditional: 2795, dependent: 657, dependent conditional: 0, dependent unconditional: 657, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 657, independent: 312, independent conditional: 297, independent unconditional: 15, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 657, independent: 312, independent conditional: 297, independent unconditional: 15, dependent: 345, dependent conditional: 253, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2606, independent: 1601, independent conditional: 1545, independent unconditional: 56, dependent: 1005, dependent conditional: 744, dependent unconditional: 261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1214414, independent: 1007197, independent conditional: 151667, independent unconditional: 855530, dependent: 203765, dependent conditional: 35350, dependent unconditional: 168415, unknown: 3452, unknown conditional: 550, unknown unconditional: 2902] , Statistics on independence cache: Total cache size (in pairs): 3452, Positive cache size: 3107, Positive conditional cache size: 297, Positive unconditional cache size: 2810, Negative cache size: 345, Negative conditional cache size: 253, Negative unconditional cache size: 92, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1023585, Maximal queried relation: 6, Independence queries for same thread: 81360 - PositiveResult [Line: 139]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 140]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 92]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 93]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 104 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 27.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 15.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 95, 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, 9.7s InterpolantComputationTime, 395 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 567 ConstructedInterpolants, 0 QuantifiedInterpolants, 13904 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1241 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23/99 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 for errors in thread instance: thread1Thread1of1ForFork2 with 1 thread instances CFG has 9 procedures, 104 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 15.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 96, 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, 0.1s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 13964 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1217 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-07 21:19:05,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Ended with exit code 0 [2024-09-07 21:19:05,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-09-07 21:19:06,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE