./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.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-local/popl20-more-array-sum-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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/popl20-more-array-sum-alt.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-more-array-sum-alt.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-dev-e94c40d-m [2024-09-24 07:44:18,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-24 07:44:19,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-24 07:44:19,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-24 07:44:19,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-24 07:44:19,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-24 07:44:19,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-24 07:44:19,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-24 07:44:19,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-24 07:44:19,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-24 07:44:19,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-24 07:44:19,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-24 07:44:19,046 INFO L153 SettingsManager]: * Use SBE=true [2024-09-24 07:44:19,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-24 07:44:19,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-24 07:44:19,051 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-24 07:44:19,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-24 07:44:19,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-24 07:44:19,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-24 07:44:19,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-24 07:44:19,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-24 07:44:19,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-24 07:44:19,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-24 07:44:19,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-24 07:44:19,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-24 07:44:19,054 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-24 07:44:19,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-24 07:44:19,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-24 07:44:19,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-24 07:44:19,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-24 07:44:19,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 07:44:19,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-24 07:44:19,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-24 07:44:19,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-24 07:44:19,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-24 07:44:19,055 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-24 07:44:19,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-24 07:44:19,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-24 07:44:19,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-24 07:44:19,056 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-24 07:44:19,056 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-24 07:44:19,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-24 07:44:19,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-24 07:44:19,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-24 07:44:19,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-24 07:44:19,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-24 07:44:19,362 INFO L274 PluginConnector]: CDTParser initialized [2024-09-24 07:44:19,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c [2024-09-24 07:44:20,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-24 07:44:21,089 INFO L384 CDTParser]: Found 1 translation units. [2024-09-24 07:44:21,092 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt.wvr.c [2024-09-24 07:44:21,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/08e2c4a98/579e3d8669b3431f8dc24f57933f660c/FLAG9c950f209 [2024-09-24 07:44:21,425 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/08e2c4a98/579e3d8669b3431f8dc24f57933f660c [2024-09-24 07:44:21,428 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-24 07:44:21,428 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-24 07:44:21,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-more-array-sum-alt.wvr.yml/witness.yml [2024-09-24 07:44:21,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-24 07:44:21,582 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-24 07:44:21,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-24 07:44:21,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-24 07:44:21,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-24 07:44:21,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:44:21" (1/2) ... [2024-09-24 07:44:21,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ca6ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:44:21, skipping insertion in model container [2024-09-24 07:44:21,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:44:21" (1/2) ... [2024-09-24 07:44:21,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ce35666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:44:21, skipping insertion in model container [2024-09-24 07:44:21,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 07:44:21" (2/2) ... [2024-09-24 07:44:21,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ca6ef5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21, skipping insertion in model container [2024-09-24 07:44:21,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 07:44:21" (2/2) ... [2024-09-24 07:44:21,630 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-24 07:44:21,631 INFO L1541 ArrayList]: Location invariant before [L52-L52] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,631 INFO L1541 ArrayList]: Location invariant before [L75-L75] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,631 INFO L1541 ArrayList]: Location invariant before [L62-L62] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,631 INFO L1541 ArrayList]: Location invariant before [L78-L78] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,634 INFO L1541 ArrayList]: Location invariant before [L49-L49] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,634 INFO L1541 ArrayList]: Location invariant before [L65-L65] ((((((((((((((((((((2147483647LL + (long long )M) + (long long )N >= 0LL) && ((2147483648LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )res2 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((2147483646LL - (long long )M) + (long long )N >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res1 >= 0LL)) && ((3221225471LL - (long long )N) + (long long )res2 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res1 >= 0LL)) && ((4294967294LL - (long long )M) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )res2 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res1 >= 0LL)) && ((4294967293LL - (long long )M) - (long long )res2 >= 0LL) [2024-09-24 07:44:21,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-24 07:44:21,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 07:44:21,837 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-24 07:44:21,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 07:44:21,954 INFO L204 MainTranslator]: Completed translation [2024-09-24 07:44:21,954 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21 WrapperNode [2024-09-24 07:44:21,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-24 07:44:21,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-24 07:44:21,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-24 07:44:21,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-24 07:44:21,962 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 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:21,972 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 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,010 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 208 [2024-09-24 07:44:22,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-24 07:44:22,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-24 07:44:22,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-24 07:44:22,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-24 07:44:22,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-24 07:44:22,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-24 07:44:22,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-24 07:44:22,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-24 07:44:22,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (1/1) ... [2024-09-24 07:44:22,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 07:44:22,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:22,085 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) [2024-09-24 07:44:22,089 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 [2024-09-24 07:44:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-24 07:44:22,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-24 07:44:22,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-24 07:44:22,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-24 07:44:22,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-24 07:44:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-24 07:44:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-24 07:44:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-24 07:44:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-24 07:44:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-24 07:44:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-24 07:44:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-24 07:44:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-24 07:44:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-24 07:44:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-24 07:44:22,147 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-24 07:44:22,290 INFO L242 CfgBuilder]: Building ICFG [2024-09-24 07:44:22,292 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-24 07:44:22,686 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-24 07:44:22,687 INFO L291 CfgBuilder]: Performing block encoding [2024-09-24 07:44:23,087 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-24 07:44:23,087 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-24 07:44:23,088 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:44:23 BoogieIcfgContainer [2024-09-24 07:44:23,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-24 07:44:23,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-24 07:44:23,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-24 07:44:23,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-24 07:44:23,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:44:21" (1/4) ... [2024-09-24 07:44:23,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1b97d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:44:23, skipping insertion in model container [2024-09-24 07:44:23,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 07:44:21" (2/4) ... [2024-09-24 07:44:23,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1b97d8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 07:44:23, skipping insertion in model container [2024-09-24 07:44:23,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 07:44:21" (3/4) ... [2024-09-24 07:44:23,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1b97d8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 07:44:23, skipping insertion in model container [2024-09-24 07:44:23,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:44:23" (4/4) ... [2024-09-24 07:44:23,107 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2024-09-24 07:44:23,132 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-24 07:44:23,132 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-24 07:44:23,132 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-24 07:44:23,201 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-24 07:44:23,242 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 07:44:23,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 07:44:23,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:23,245 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) [2024-09-24 07:44:23,247 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 [2024-09-24 07:44:23,280 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 07:44:23,292 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-09-24 07:44:23,300 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;@1e159fca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 07:44:23,301 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 07:44:23,476 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:23,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:23,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1670720947, now seen corresponding path program 1 times [2024-09-24 07:44:23,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:23,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339557946] [2024-09-24 07:44:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:23,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:23,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:23,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339557946] [2024-09-24 07:44:23,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339557946] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 07:44:23,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 07:44:23,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 07:44:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93531433] [2024-09-24 07:44:23,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 07:44:24,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 07:44:24,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 07:44:24,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 07:44:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:24,033 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:24,034 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-09-24 07:44:24,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:24,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-24 07:44:24,109 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:24,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:24,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1213365193, now seen corresponding path program 1 times [2024-09-24 07:44:24,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:24,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251809373] [2024-09-24 07:44:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:24,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:24,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251809373] [2024-09-24 07:44:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251809373] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494313453] [2024-09-24 07:44:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:24,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:24,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:24,888 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) [2024-09-24 07:44:24,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-24 07:44:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:24,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-24 07:44:25,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:25,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:44:26,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:26,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494313453] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:44:26,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:44:26,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2024-09-24 07:44:26,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073432093] [2024-09-24 07:44:26,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:44:26,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 07:44:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 07:44:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-09-24 07:44:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:26,569 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:26,569 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 07:44:26,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:26,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 07:44:27,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-24 07:44:27,192 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 [2024-09-24 07:44:27,193 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:27,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:27,193 INFO L85 PathProgramCache]: Analyzing trace with hash -768037197, now seen corresponding path program 2 times [2024-09-24 07:44:27,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:27,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116145786] [2024-09-24 07:44:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:27,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:27,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116145786] [2024-09-24 07:44:27,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116145786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785684543] [2024-09-24 07:44:27,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 07:44:27,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:27,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:27,867 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) [2024-09-24 07:44:27,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-24 07:44:27,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-24 07:44:27,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 07:44:27,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 07:44:27,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-24 07:44:28,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 07:44:28,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785684543] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 07:44:28,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 07:44:28,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-09-24 07:44:28,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315045337] [2024-09-24 07:44:28,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 07:44:28,337 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-24 07:44:28,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:28,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-24 07:44:28,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-24 07:44:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:28,338 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:28,338 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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) [2024-09-24 07:44:28,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:28,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 07:44:28,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:28,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-24 07:44:28,817 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 [2024-09-24 07:44:28,817 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:28,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:28,818 INFO L85 PathProgramCache]: Analyzing trace with hash 651478869, now seen corresponding path program 1 times [2024-09-24 07:44:28,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:28,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923477135] [2024-09-24 07:44:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:28,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:29,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:29,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923477135] [2024-09-24 07:44:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923477135] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:29,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311985358] [2024-09-24 07:44:29,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:29,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:29,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:29,697 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) [2024-09-24 07:44:29,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-24 07:44:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:29,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-24 07:44:29,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:30,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:44:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311985358] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:44:31,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:44:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 30 [2024-09-24 07:44:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002037213] [2024-09-24 07:44:31,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:44:31,209 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-24 07:44:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-24 07:44:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2024-09-24 07:44:31,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:31,211 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:31,212 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 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) [2024-09-24 07:44:31,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:31,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:31,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:31,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:31,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-24 07:44:32,083 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 [2024-09-24 07:44:32,084 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:32,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash -718030635, now seen corresponding path program 2 times [2024-09-24 07:44:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:32,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591440876] [2024-09-24 07:44:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:32,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:33,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:33,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591440876] [2024-09-24 07:44:33,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591440876] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:33,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156967959] [2024-09-24 07:44:33,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 07:44:33,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:33,216 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) [2024-09-24 07:44:33,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-24 07:44:33,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-24 07:44:33,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 07:44:33,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-24 07:44:33,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-24 07:44:33,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 07:44:33,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156967959] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 07:44:33,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 07:44:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 22 [2024-09-24 07:44:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978562559] [2024-09-24 07:44:33,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 07:44:33,656 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 07:44:33,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:33,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 07:44:33,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-09-24 07:44:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:33,658 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:33,658 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2024-09-24 07:44:33,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:33,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:33,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:33,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:33,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:34,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-24 07:44:34,215 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 [2024-09-24 07:44:34,216 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:34,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash -662178499, now seen corresponding path program 1 times [2024-09-24 07:44:34,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:34,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164956660] [2024-09-24 07:44:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:35,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:35,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164956660] [2024-09-24 07:44:35,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164956660] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:35,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823738504] [2024-09-24 07:44:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:35,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:35,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:35,421 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) [2024-09-24 07:44:35,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-24 07:44:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:35,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-09-24 07:44:35,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:36,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-09-24 07:44:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:36,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:44:37,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 07:44:37,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 78 [2024-09-24 07:44:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823738504] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:44:39,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:44:39,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 22] total 61 [2024-09-24 07:44:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254114945] [2024-09-24 07:44:39,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:44:39,350 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-24 07:44:39,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-24 07:44:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3391, Unknown=0, NotChecked=0, Total=3782 [2024-09-24 07:44:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:39,353 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:39,354 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 61 states have internal predecessors, (103), 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) [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:39,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:44:45,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-24 07:44:45,214 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 [2024-09-24 07:44:45,215 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:44:45,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:44:45,215 INFO L85 PathProgramCache]: Analyzing trace with hash -546389921, now seen corresponding path program 1 times [2024-09-24 07:44:45,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:44:45,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667259807] [2024-09-24 07:44:45,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:45,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:44:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 1 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:46,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:44:46,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667259807] [2024-09-24 07:44:46,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667259807] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:44:46,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675717745] [2024-09-24 07:44:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:44:46,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:44:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:44:46,936 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) [2024-09-24 07:44:46,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-24 07:44:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:44:47,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-09-24 07:44:47,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:44:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:48,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:44:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:44:51,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675717745] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:44:51,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:44:51,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32, 34] total 97 [2024-09-24 07:44:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407787808] [2024-09-24 07:44:51,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:44:51,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-09-24 07:44:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:44:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-09-24 07:44:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1725, Invalid=7781, Unknown=0, NotChecked=0, Total=9506 [2024-09-24 07:44:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:44:51,602 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:44:51,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.4795918367346939) internal successors, (145), 97 states have internal predecessors, (145), 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) [2024-09-24 07:44:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:44:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:44:51,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:44:51,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:44:51,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:44:51,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:45:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:45:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:45:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:45:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:45:01,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-24 07:45:01,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-24 07:45:01,879 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 [2024-09-24 07:45:01,880 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:45:01,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:45:01,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1326189463, now seen corresponding path program 1 times [2024-09-24 07:45:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:45:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446933477] [2024-09-24 07:45:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:45:01,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:45:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:45:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 2 proven. 1097 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:45:05,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:45:05,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446933477] [2024-09-24 07:45:05,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446933477] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:45:05,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712846807] [2024-09-24 07:45:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:45:05,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:45:05,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:45:05,428 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 07:45:05,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-24 07:45:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:45:05,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-24 07:45:05,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:45:09,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-09-24 07:45:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 8 proven. 1091 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:45:10,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:45:11,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 86 [2024-09-24 07:45:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 14 proven. 1085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:45:17,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712846807] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:45:17,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:45:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 62, 59] total 178 [2024-09-24 07:45:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975616659] [2024-09-24 07:45:17,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:45:17,446 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 179 states [2024-09-24 07:45:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:45:17,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2024-09-24 07:45:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9199, Invalid=22663, Unknown=0, NotChecked=0, Total=31862 [2024-09-24 07:45:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:45:17,456 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:45:17,456 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 179 states, 179 states have (on average 1.3798882681564246) internal successors, (247), 178 states have internal predecessors, (247), 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) [2024-09-24 07:45:17,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:45:17,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:17,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:45:17,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:45:17,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:17,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:45:17,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-09-24 07:45:17,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:45:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:45:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:45:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:45:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:45:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:45:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-09-24 07:45:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:45:30,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-24 07:45:30,377 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:45:30,378 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:45:30,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:45:30,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1357289821, now seen corresponding path program 2 times [2024-09-24 07:45:30,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:45:30,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601287074] [2024-09-24 07:45:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:45:30,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:45:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:45:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4504 backedges. 4 proven. 4500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:45:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:45:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601287074] [2024-09-24 07:45:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601287074] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:45:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950766069] [2024-09-24 07:45:39,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 07:45:39,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:45:39,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:45:39,082 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) [2024-09-24 07:45:39,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-24 07:45:39,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 07:45:39,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 07:45:39,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 1398 conjuncts, 220 conjuncts are in the unsatisfiable core [2024-09-24 07:45:39,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:45:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4504 backedges. 14 proven. 4490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:45:49,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:46:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4504 backedges. 29 proven. 4475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:46:05,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950766069] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:46:05,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:46:05,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 317 [2024-09-24 07:46:05,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118310140] [2024-09-24 07:46:05,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:46:05,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 318 states [2024-09-24 07:46:05,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:46:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 318 interpolants. [2024-09-24 07:46:05,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20395, Invalid=80411, Unknown=0, NotChecked=0, Total=100806 [2024-09-24 07:46:05,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:46:05,798 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:46:05,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 318 states, 318 states have (on average 1.2389937106918238) internal successors, (394), 317 states have internal predecessors, (394), 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) [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:46:05,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:46:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-09-24 07:46:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:46:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:46:30,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-24 07:46:30,389 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 [2024-09-24 07:46:30,390 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:46:30,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:46:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1266898035, now seen corresponding path program 3 times [2024-09-24 07:46:30,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:46:30,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010653317] [2024-09-24 07:46:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:46:30,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:46:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:46:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4636 backedges. 18 proven. 4618 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:46:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:46:39,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010653317] [2024-09-24 07:46:39,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010653317] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:46:39,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638135120] [2024-09-24 07:46:39,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-24 07:46:39,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:46:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:46:39,488 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) [2024-09-24 07:46:39,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-24 07:46:39,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-24 07:46:39,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 07:46:39,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-24 07:46:39,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:46:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4636 backedges. 28 proven. 95 refuted. 0 times theorem prover too weak. 4513 trivial. 0 not checked. [2024-09-24 07:46:40,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:46:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4636 backedges. 123 proven. 12 refuted. 0 times theorem prover too weak. 4501 trivial. 0 not checked. [2024-09-24 07:46:43,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638135120] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:46:43,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:46:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 7, 8] total 125 [2024-09-24 07:46:43,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571699116] [2024-09-24 07:46:43,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:46:43,047 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2024-09-24 07:46:43,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:46:43,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2024-09-24 07:46:43,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=15398, Unknown=0, NotChecked=0, Total=15750 [2024-09-24 07:46:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:46:43,050 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:46:43,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 1.7857142857142858) internal successors, (225), 125 states have internal predecessors, (225), 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) [2024-09-24 07:46:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:46:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:46:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:46:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:46:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2024-09-24 07:46:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:46:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:46:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:46:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:46:59,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-24 07:46:59,219 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 [2024-09-24 07:46:59,220 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:46:59,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:46:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1477916086, now seen corresponding path program 1 times [2024-09-24 07:46:59,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:46:59,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754185037] [2024-09-24 07:46:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:46:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:46:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:47:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4826 backedges. 108 proven. 10 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2024-09-24 07:47:00,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:47:00,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754185037] [2024-09-24 07:47:00,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754185037] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:47:00,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838264860] [2024-09-24 07:47:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:47:00,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:47:00,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:47:00,071 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) [2024-09-24 07:47:00,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-24 07:47:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:47:00,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-24 07:47:00,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:47:00,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4826 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2024-09-24 07:47:00,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:47:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4826 backedges. 108 proven. 10 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2024-09-24 07:47:01,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838264860] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:47:01,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:47:01,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-24 07:47:01,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35225295] [2024-09-24 07:47:01,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:47:01,825 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 07:47:01,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:47:01,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 07:47:01,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-24 07:47:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:47:01,826 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:47:01,826 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:47:01,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:47:01,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:47:01,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:47:01,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:47:01,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:47:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:47:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 07:47:02,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-24 07:47:02,245 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 [2024-09-24 07:47:02,245 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:47:02,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:47:02,246 INFO L85 PathProgramCache]: Analyzing trace with hash 82312652, now seen corresponding path program 2 times [2024-09-24 07:47:02,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:47:02,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555863228] [2024-09-24 07:47:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:47:02,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:47:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:47:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4757 backedges. 53 proven. 4704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:47:11,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:47:11,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555863228] [2024-09-24 07:47:11,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555863228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:47:11,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566858402] [2024-09-24 07:47:11,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 07:47:11,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:47:11,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:47:11,797 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) [2024-09-24 07:47:11,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-24 07:47:12,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 07:47:12,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 07:47:12,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 232 conjuncts are in the unsatisfiable core [2024-09-24 07:47:12,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:47:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4757 backedges. 39 proven. 4718 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:47:24,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:47:26,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 128 [2024-09-24 07:47:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4757 backedges. 76 proven. 4681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:47:42,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566858402] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:47:42,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:47:42,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 112, 112] total 339 [2024-09-24 07:47:42,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138712184] [2024-09-24 07:47:42,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:47:42,730 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 340 states [2024-09-24 07:47:42,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:47:42,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 340 interpolants. [2024-09-24 07:47:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22655, Invalid=92605, Unknown=0, NotChecked=0, Total=115260 [2024-09-24 07:47:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:47:42,738 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:47:42,738 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 340 states, 340 states have (on average 1.4205882352941177) internal successors, (483), 339 states have internal predecessors, (483), 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) [2024-09-24 07:47:42,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:47:42,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 07:47:42,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:50:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:50:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:50:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:50:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:50:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 07:50:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2024-09-24 07:50:08,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-24 07:50:08,893 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 [2024-09-24 07:50:08,894 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 07:50:08,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 07:50:08,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1885985201, now seen corresponding path program 1 times [2024-09-24 07:50:08,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 07:50:08,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536392278] [2024-09-24 07:50:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:50:08,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 07:50:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:50:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 19157 backedges. 130 proven. 19027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:50:38,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 07:50:38,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536392278] [2024-09-24 07:50:38,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536392278] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 07:50:38,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908994981] [2024-09-24 07:50:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 07:50:38,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 07:50:38,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 07:50:38,733 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) [2024-09-24 07:50:38,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-24 07:50:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 07:50:39,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 2934 conjuncts, 431 conjuncts are in the unsatisfiable core [2024-09-24 07:50:39,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 07:50:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 19157 backedges. 201 proven. 18956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:50:43,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 07:51:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 19157 backedges. 172 proven. 18985 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 07:51:39,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908994981] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 07:51:39,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 07:51:39,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [215, 214, 215] total 449 [2024-09-24 07:51:39,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67940678] [2024-09-24 07:51:39,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 07:51:39,462 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 451 states [2024-09-24 07:51:39,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 07:51:39,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 451 interpolants. [2024-09-24 07:51:39,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46453, Invalid=156497, Unknown=0, NotChecked=0, Total=202950 [2024-09-24 07:51:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 07:51:39,483 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 07:51:39,484 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 451 states, 450 states have (on average 1.48) internal successors, (666), 450 states have internal predecessors, (666), 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) [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2024-09-24 07:51:39,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2024-09-24 07:51:39,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 07:51:39,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2024-09-24 07:51:39,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15