./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-bad-dot-product.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-bad-dot-product.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 15:05:56,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:05:57,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 15:05:57,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:05:57,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:05:57,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:05:57,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:05:57,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:05:57,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:05:57,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:05:57,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:05:57,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:05:57,052 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:05:57,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:05:57,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:05:57,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:05:57,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 15:05:57,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:05:57,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:05:57,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:05:57,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:05:57,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:05:57,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:05:57,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:05:57,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:05:57,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:05:57,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:05:57,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:05:57,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:05:57,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:05:57,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:05:57,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 15:05:57,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:05:57,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:05:57,062 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:05:57,062 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:05:57,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:05:57,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:05:57,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:05:57,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:05:57,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:05:57,359 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:05:57,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2024-09-08 15:05:58,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:05:59,056 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:05:59,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2024-09-08 15:05:59,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7563115f2/d4da14e4f1f24367b44b917511966845/FLAGb66c2099e [2024-09-08 15:05:59,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7563115f2/d4da14e4f1f24367b44b917511966845 [2024-09-08 15:05:59,436 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:05:59,436 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:05:59,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-bad-dot-product.wvr.yml/witness.yml [2024-09-08 15:05:59,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:05:59,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:05:59,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:05:59,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:05:59,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:05:59,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:05:59" (1/2) ... [2024-09-08 15:05:59,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3da178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:05:59, skipping insertion in model container [2024-09-08 15:05:59,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:05:59" (1/2) ... [2024-09-08 15:05:59,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@494ca835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:05:59, skipping insertion in model container [2024-09-08 15:05:59,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:05:59" (2/2) ... [2024-09-08 15:05:59,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3da178 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:05:59, skipping insertion in model container [2024-09-08 15:05:59,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:05:59" (2/2) ... [2024-09-08 15:05:59,617 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:05:59,620 INFO L1541 ArrayList]: Location invariant before [L79-L79] ((((((((((((((((((((((((((((((((((((-1LL + (long long )N) + (long long )size >= 0LL) && ((2147483646LL + (long long )M) + (long long )N >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )M) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res1) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res2) + (long long )size >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )size >= 0LL)) && ((2147483645LL - (long long )M) + (long long )N >= 0LL)) && ((2147483646LL - (long long )M) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res1) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res2) + (long long )size >= 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)) && ((1073741822LL + (long long )N) - (long long )size >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((3221225470LL + (long long )M) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res1) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res2) - (long long )size >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((2147483646LL - (long long )N) - (long long )size >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225469LL - (long long )M) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res1) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res2) - (long long )size >= 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) [2024-09-08 15:05:59,621 INFO L1541 ArrayList]: Location invariant before [L66-L66] ((((((((((((((((((((((((((((((((((((-1LL + (long long )N) + (long long )size >= 0LL) && ((2147483646LL + (long long )M) + (long long )N >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )M) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res1) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res2) + (long long )size >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )size >= 0LL)) && ((2147483645LL - (long long )M) + (long long )N >= 0LL)) && ((2147483646LL - (long long )M) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res1) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res2) + (long long )size >= 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)) && ((1073741822LL + (long long )N) - (long long )size >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((3221225470LL + (long long )M) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res1) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res2) - (long long )size >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((2147483646LL - (long long )N) - (long long )size >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225469LL - (long long )M) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res1) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res2) - (long long )size >= 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) [2024-09-08 15:05:59,621 INFO L1541 ArrayList]: Location invariant before [L53-L53] ((((((((((((((((((((((((((((((((((((-1LL + (long long )N) + (long long )size >= 0LL) && ((2147483646LL + (long long )M) + (long long )N >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res1 >= 0LL)) && ((2147483647LL + (long long )N) + (long long )res2 >= 0LL)) && ((2147483647LL + (long long )M) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res1) + (long long )size >= 0LL)) && ((2147483648LL + (long long )res2) + (long long )size >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res1 >= 0LL)) && ((4294967295LL + (long long )M) + (long long )res2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )size >= 0LL)) && ((2147483645LL - (long long )M) + (long long )N >= 0LL)) && ((2147483646LL - (long long )M) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res1) + (long long )size >= 0LL)) && ((2147483647LL - (long long )res2) + (long long )size >= 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)) && ((1073741822LL + (long long )N) - (long long )size >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res1 >= 0LL)) && ((2147483646LL + (long long )N) - (long long )res2 >= 0LL)) && ((3221225470LL + (long long )M) - (long long )N >= 0LL)) && ((3221225470LL + (long long )M) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res1) - (long long )size >= 0LL)) && ((3221225471LL + (long long )res2) - (long long )size >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res1 >= 0LL)) && ((4294967294LL + (long long )M) - (long long )res2 >= 0LL)) && ((2147483646LL - (long long )N) - (long long )size >= 0LL)) && ((3221225469LL - (long long )M) - (long long )N >= 0LL)) && ((3221225469LL - (long long )M) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res1) - (long long )size >= 0LL)) && ((3221225470LL - (long long )res2) - (long long )size >= 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) [2024-09-08 15:05:59,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:05:59,838 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c[2904,2917] [2024-09-08 15:05:59,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:05:59,862 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:05:59,985 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c[2904,2917] [2024-09-08 15:05:59,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:06:00,035 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:06:00,036 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00 WrapperNode [2024-09-08 15:06:00,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:06:00,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:06:00,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:06:00,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:06:00,045 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 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,056 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 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,117 INFO L138 Inliner]: procedures = 25, calls = 40, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 278 [2024-09-08 15:06:00,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:06:00,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:06:00,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:06:00,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:06:00,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:06:00,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:06:00,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:06:00,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:06:00,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (1/1) ... [2024-09-08 15:06:00,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:06:00,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:00,226 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) [2024-09-08 15:06:00,228 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 [2024-09-08 15:06:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:06:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:06:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:06:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:06:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 15:06:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:06:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:06:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:06:00,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:06:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 15:06:00,284 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 15:06:00,403 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:06:00,406 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:06:00,929 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:06:00,929 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:06:01,352 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:06:01,353 INFO L318 CfgBuilder]: Removed 8 assume(true) statements. [2024-09-08 15:06:01,354 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:06:01 BoogieIcfgContainer [2024-09-08 15:06:01,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:06:01,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:06:01,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:06:01,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:06:01,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:05:59" (1/4) ... [2024-09-08 15:06:01,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae5ac8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:06:01, skipping insertion in model container [2024-09-08 15:06:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:05:59" (2/4) ... [2024-09-08 15:06:01,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae5ac8c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:06:01, skipping insertion in model container [2024-09-08 15:06:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:06:00" (3/4) ... [2024-09-08 15:06:01,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae5ac8c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:06:01, skipping insertion in model container [2024-09-08 15:06:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:06:01" (4/4) ... [2024-09-08 15:06:01,365 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2024-09-08 15:06:01,386 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:06:01,386 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-08 15:06:01,387 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:06:01,462 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 15:06:01,510 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:06:01,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:06:01,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:01,512 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) [2024-09-08 15:06:01,514 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 [2024-09-08 15:06:01,551 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:06:01,600 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-09-08 15:06:01,607 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;@37214f11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:06:01,608 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 15:06:01,765 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:01,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1435967913, now seen corresponding path program 1 times [2024-09-08 15:06:01,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:01,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542455890] [2024-09-08 15:06:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:01,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:06:02,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:02,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542455890] [2024-09-08 15:06:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542455890] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:06:02,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:06:02,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:06:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469953770] [2024-09-08 15:06:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:06:02,047 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-08 15:06:02,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-08 15:06:02,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-08 15:06:02,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,076 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:02,077 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-09-08 15:06:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,154 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 15:06:02,155 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:02,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash 35624272, now seen corresponding path program 1 times [2024-09-08 15:06:02,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:02,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613010227] [2024-09-08 15:06:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:02,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:06:02,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:02,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613010227] [2024-09-08 15:06:02,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613010227] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:06:02,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:06:02,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:06:02,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475527794] [2024-09-08 15:06:02,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:06:02,485 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:06:02,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:06:02,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:06:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,488 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:02,489 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-09-08 15:06:02,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:02,635 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 15:06:02,636 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:02,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1882312636, now seen corresponding path program 1 times [2024-09-08 15:06:02,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:02,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793954322] [2024-09-08 15:06:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:06:02,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793954322] [2024-09-08 15:06:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793954322] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864838408] [2024-09-08 15:06:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:02,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:02,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:02,960 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) [2024-09-08 15:06:02,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 15:06:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:03,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:06:03,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:06:03,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:06:03,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864838408] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:03,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-08 15:06:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823499770] [2024-09-08 15:06:03,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:03,362 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:06:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:06:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:06:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,368 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:03,368 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 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) [2024-09-08 15:06:03,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:03,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:03,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 15:06:03,805 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,SelfDestructingSolverStorable2 [2024-09-08 15:06:03,806 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:03,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -999890224, now seen corresponding path program 2 times [2024-09-08 15:06:03,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:03,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230143447] [2024-09-08 15:06:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:03,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:06:03,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:03,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230143447] [2024-09-08 15:06:03,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230143447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:06:03,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:06:03,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:06:03,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250420786] [2024-09-08 15:06:03,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:06:03,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:06:03,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:03,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:06:03,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:06:03,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,914 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:03,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-09-08 15:06:03,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:03,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:03,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:03,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:04,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 15:06:04,061 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:04,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2010501618, now seen corresponding path program 1 times [2024-09-08 15:06:04,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:04,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752860076] [2024-09-08 15:06:04,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:04,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:06:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:04,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752860076] [2024-09-08 15:06:04,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752860076] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657769391] [2024-09-08 15:06:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:04,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:04,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:04,559 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) [2024-09-08 15:06:04,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 15:06:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:04,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:06:04,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:06:04,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:06:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657769391] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:05,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-09-08 15:06:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598473299] [2024-09-08 15:06:05,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:05,116 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-08 15:06:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-08 15:06:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-09-08 15:06:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:05,121 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:05,122 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.32) internal successors, (108), 24 states have internal predecessors, (108), 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) [2024-09-08 15:06:05,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:05,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:05,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:05,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:05,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:05,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:05,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:05,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:05,606 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:05,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1923105926, now seen corresponding path program 2 times [2024-09-08 15:06:05,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:05,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971572044] [2024-09-08 15:06:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:06:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971572044] [2024-09-08 15:06:05,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971572044] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129078384] [2024-09-08 15:06:05,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:06:05,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:05,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:05,861 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) [2024-09-08 15:06:05,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 15:06:05,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:06:05,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:05,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:06:05,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:06,099 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 25 treesize of output 9 [2024-09-08 15:06:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-08 15:06:06,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:06,160 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 25 treesize of output 9 [2024-09-08 15:06:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-08 15:06:06,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129078384] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:06,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:06,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2024-09-08 15:06:06,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120786211] [2024-09-08 15:06:06,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:06,243 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 15:06:06,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:06,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 15:06:06,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-09-08 15:06:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:06,245 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:06,246 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 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) [2024-09-08 15:06:06,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:06,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:06,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:06,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:06,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:06,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:06,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:06,843 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:06,844 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:06,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:06,844 INFO L85 PathProgramCache]: Analyzing trace with hash -374182415, now seen corresponding path program 1 times [2024-09-08 15:06:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:06,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210604152] [2024-09-08 15:06:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:06,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:06:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210604152] [2024-09-08 15:06:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210604152] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:07,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181567892] [2024-09-08 15:06:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:07,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:07,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:07,175 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) [2024-09-08 15:06:07,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 15:06:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:07,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 15:06:07,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:06:07,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:06:07,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181567892] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:07,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:07,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2024-09-08 15:06:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912479558] [2024-09-08 15:06:07,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:07,809 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-08 15:06:07,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:07,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-08 15:06:07,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-09-08 15:06:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:07,811 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:07,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.518518518518518) internal successors, (122), 26 states have internal predecessors, (122), 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) [2024-09-08 15:06:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:07,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:07,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:07,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:07,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:07,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:08,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:08,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:08,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:08,261 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-08 15:06:08,262 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:08,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 409240837, now seen corresponding path program 2 times [2024-09-08 15:06:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327401261] [2024-09-08 15:06:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:08,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:06:08,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:08,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327401261] [2024-09-08 15:06:08,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327401261] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:08,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020279912] [2024-09-08 15:06:08,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:06:08,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:08,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:08,545 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) [2024-09-08 15:06:08,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 15:06:08,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:06:08,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:08,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-08 15:06:08,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:09,434 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 25 treesize of output 9 [2024-09-08 15:06:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-08 15:06:09,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:06:09,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020279912] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:06:09,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:06:09,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 16 [2024-09-08 15:06:09,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936994309] [2024-09-08 15:06:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:06:09,538 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-08 15:06:09,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:09,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-08 15:06:09,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-08 15:06:09,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:09,539 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:09,539 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:06:09,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:09,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:09,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:09,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:09,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:09,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:09,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:09,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:09,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 15:06:09,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:09,943 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:09,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:09,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1702450079, now seen corresponding path program 1 times [2024-09-08 15:06:09,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219793766] [2024-09-08 15:06:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219793766] [2024-09-08 15:06:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219793766] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838631426] [2024-09-08 15:06:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:10,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:10,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:10,207 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) [2024-09-08 15:06:10,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 15:06:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:10,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 15:06:10,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 32 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:10,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:10,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838631426] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:10,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:10,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-09-08 15:06:10,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186674993] [2024-09-08 15:06:10,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:10,708 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-08 15:06:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:10,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-08 15:06:10,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2024-09-08 15:06:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:10,709 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:10,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 23 states have internal predecessors, (116), 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) [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:10,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:10,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:11,157 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,SelfDestructingSolverStorable8 [2024-09-08 15:06:11,157 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:11,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash 988865114, now seen corresponding path program 1 times [2024-09-08 15:06:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140452255] [2024-09-08 15:06:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 64 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:11,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140452255] [2024-09-08 15:06:11,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140452255] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:11,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604499224] [2024-09-08 15:06:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:11,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:11,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:11,434 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) [2024-09-08 15:06:11,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 15:06:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:11,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-08 15:06:11,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 15:06:11,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 15:06:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604499224] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:12,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:12,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2024-09-08 15:06:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225564401] [2024-09-08 15:06:12,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:12,134 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-08 15:06:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:12,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-08 15:06:12,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2024-09-08 15:06:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:12,136 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:12,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.878787878787879) internal successors, (161), 32 states have internal predecessors, (161), 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) [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:12,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:12,581 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:12,581 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:12,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:12,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2049767826, now seen corresponding path program 2 times [2024-09-08 15:06:12,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:12,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414272804] [2024-09-08 15:06:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 54 proven. 42 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:12,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414272804] [2024-09-08 15:06:12,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414272804] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877692887] [2024-09-08 15:06:12,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:06:12,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:12,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:12,946 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) [2024-09-08 15:06:12,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 15:06:13,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:06:13,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:13,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 15:06:13,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 81 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:13,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 81 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:06:13,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877692887] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:13,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:13,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-09-08 15:06:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135971589] [2024-09-08 15:06:13,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:13,599 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-08 15:06:13,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:13,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-08 15:06:13,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=890, Unknown=0, NotChecked=0, Total=1122 [2024-09-08 15:06:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:13,601 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:13,601 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.147058823529412) internal successors, (141), 33 states have internal predecessors, (141), 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) [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:13,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:13,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:13,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:13,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:13,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:13,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 15:06:14,016 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:14,017 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:14,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1758108454, now seen corresponding path program 3 times [2024-09-08 15:06:14,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:14,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772559373] [2024-09-08 15:06:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:14,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-09-08 15:06:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:14,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772559373] [2024-09-08 15:06:14,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772559373] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:14,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348284984] [2024-09-08 15:06:14,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:06:14,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:14,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:14,280 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) [2024-09-08 15:06:14,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 15:06:14,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 15:06:14,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:14,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-08 15:06:14,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:14,543 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 23 treesize of output 7 [2024-09-08 15:06:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-09-08 15:06:14,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:14,605 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 25 treesize of output 9 [2024-09-08 15:06:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-09-08 15:06:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348284984] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:14,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-08 15:06:14,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205927582] [2024-09-08 15:06:14,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:14,713 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-08 15:06:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:14,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-08 15:06:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-09-08 15:06:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:14,714 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:14,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 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) [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:14,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:14,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:14,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:14,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:14,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:14,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:14,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:15,058 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,SelfDestructingSolverStorable11 [2024-09-08 15:06:15,059 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:15,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash -627330260, now seen corresponding path program 4 times [2024-09-08 15:06:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021662176] [2024-09-08 15:06:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:15,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-09-08 15:06:16,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021662176] [2024-09-08 15:06:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021662176] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968642064] [2024-09-08 15:06:16,495 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:06:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:16,497 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) [2024-09-08 15:06:16,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 15:06:16,588 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:06:16,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:16,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-08 15:06:16,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:17,143 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 19 treesize of output 7 [2024-09-08 15:06:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 2 proven. 82 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-08 15:06:17,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:17,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:06:17,318 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 25 treesize of output 17 [2024-09-08 15:06:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-08 15:06:17,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968642064] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:17,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:17,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 11] total 39 [2024-09-08 15:06:17,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453678702] [2024-09-08 15:06:17,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:17,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-08 15:06:17,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-08 15:06:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2024-09-08 15:06:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:17,499 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:17,499 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.3333333333333335) internal successors, (130), 39 states have internal predecessors, (130), 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) [2024-09-08 15:06:17,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:17,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:17,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:17,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:17,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:17,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:17,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:20,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:20,220 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:20,220 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:20,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash -494003036, now seen corresponding path program 5 times [2024-09-08 15:06:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:20,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335480622] [2024-09-08 15:06:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 151 proven. 60 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-08 15:06:20,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335480622] [2024-09-08 15:06:20,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335480622] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146450063] [2024-09-08 15:06:20,671 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 15:06:20,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:20,674 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) [2024-09-08 15:06:20,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 15:06:20,920 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-08 15:06:20,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:20,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 15:06:20,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 182 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 15:06:21,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 182 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 15:06:21,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146450063] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:21,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:21,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2024-09-08 15:06:21,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384749355] [2024-09-08 15:06:21,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:21,927 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-08 15:06:21,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-08 15:06:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=2129, Unknown=0, NotChecked=0, Total=2550 [2024-09-08 15:06:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:21,930 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:21,930 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.784313725490196) internal successors, (244), 50 states have internal predecessors, (244), 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) [2024-09-08 15:06:21,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:21,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:21,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:21,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:21,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:21,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:22,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:22,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-08 15:06:22,426 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,SelfDestructingSolverStorable13 [2024-09-08 15:06:22,426 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:22,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1117963848, now seen corresponding path program 6 times [2024-09-08 15:06:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278746322] [2024-09-08 15:06:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-08 15:06:24,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:24,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278746322] [2024-09-08 15:06:24,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278746322] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:24,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879422105] [2024-09-08 15:06:24,092 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 15:06:24,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:24,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:24,094 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) [2024-09-08 15:06:24,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 15:06:24,281 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-08 15:06:24,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:24,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-08 15:06:24,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:25,137 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 15 treesize of output 7 [2024-09-08 15:06:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 3 proven. 182 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 15:06:25,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:25,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:06:25,286 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 23 treesize of output 15 [2024-09-08 15:06:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-09-08 15:06:25,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879422105] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:25,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:25,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 22, 11] total 47 [2024-09-08 15:06:25,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819838174] [2024-09-08 15:06:25,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:25,509 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-08 15:06:25,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:25,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-08 15:06:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2021, Unknown=0, NotChecked=0, Total=2162 [2024-09-08 15:06:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:25,511 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:25,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.617021276595745) internal successors, (170), 47 states have internal predecessors, (170), 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) [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:25,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:25,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:25,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:25,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:25,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:29,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-08 15:06:29,312 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-08 15:06:29,312 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:29,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:29,313 INFO L85 PathProgramCache]: Analyzing trace with hash 885429822, now seen corresponding path program 2 times [2024-09-08 15:06:29,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:29,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314101066] [2024-09-08 15:06:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:29,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 76 proven. 241 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:06:29,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:29,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314101066] [2024-09-08 15:06:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314101066] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:29,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587342333] [2024-09-08 15:06:29,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:06:29,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:29,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:29,819 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:06:29,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 15:06:29,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:06:29,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:29,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-08 15:06:29,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 84 proven. 233 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:06:30,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 93 proven. 224 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:06:30,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587342333] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:30,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:30,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 48 [2024-09-08 15:06:30,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619886243] [2024-09-08 15:06:30,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:30,806 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-08 15:06:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-08 15:06:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-09-08 15:06:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:30,808 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:30,808 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.3061224489795915) internal successors, (211), 48 states have internal predecessors, (211), 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) [2024-09-08 15:06:30,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:30,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:30,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:30,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:30,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:30,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:31,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-08 15:06:31,363 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-08 15:06:31,363 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:31,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2043587494, now seen corresponding path program 7 times [2024-09-08 15:06:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:31,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081424108] [2024-09-08 15:06:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:31,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 355 proven. 87 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-08 15:06:31,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:31,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081424108] [2024-09-08 15:06:31,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081424108] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:31,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852842621] [2024-09-08 15:06:31,926 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 15:06:31,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:31,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:31,928 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:06:31,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 15:06:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:32,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-08 15:06:32,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 388 proven. 45 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-08 15:06:32,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 388 proven. 45 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-08 15:06:33,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852842621] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:33,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:33,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 62 [2024-09-08 15:06:33,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393115522] [2024-09-08 15:06:33,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:33,174 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-09-08 15:06:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-09-08 15:06:33,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=625, Invalid=3281, Unknown=0, NotChecked=0, Total=3906 [2024-09-08 15:06:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:33,177 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:33,177 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.698412698412699) internal successors, (296), 62 states have internal predecessors, (296), 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) [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:33,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:33,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:06:33,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:33,685 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 15:06:33,685 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:33,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:33,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1597907642, now seen corresponding path program 8 times [2024-09-08 15:06:33,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:33,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664744479] [2024-09-08 15:06:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:33,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 329 proven. 128 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 15:06:34,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:34,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664744479] [2024-09-08 15:06:34,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664744479] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:34,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030570364] [2024-09-08 15:06:34,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:06:34,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:34,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:34,451 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:06:34,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 15:06:34,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:06:34,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:34,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-08 15:06:34,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 398 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 15:06:35,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:35,800 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 398 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-08 15:06:35,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030570364] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:35,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:35,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 59 [2024-09-08 15:06:35,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224461821] [2024-09-08 15:06:35,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:35,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-09-08 15:06:35,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:35,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-09-08 15:06:35,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=2861, Unknown=0, NotChecked=0, Total=3540 [2024-09-08 15:06:35,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:35,804 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:35,805 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.1) internal successors, (246), 59 states have internal predecessors, (246), 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) [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:35,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:35,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:35,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:35,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:06:35,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:06:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 15:06:36,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-08 15:06:36,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-08 15:06:36,278 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:06:36,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:06:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash 666734118, now seen corresponding path program 9 times [2024-09-08 15:06:36,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:06:36,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233215526] [2024-09-08 15:06:36,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:06:36,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:06:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:06:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 329 proven. 139 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 15:06:36,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:06:36,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233215526] [2024-09-08 15:06:36,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233215526] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:06:36,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496351238] [2024-09-08 15:06:36,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:06:36,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:06:36,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:06:36,978 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:06:36,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-08 15:06:37,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 15:06:37,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:06:37,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-08 15:06:37,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:06:38,243 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 25 treesize of output 9 [2024-09-08 15:06:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-08 15:06:38,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:06:40,250 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 25 treesize of output 9 [2024-09-08 15:06:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-08 15:06:44,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496351238] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:06:44,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:06:44,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 8, 8] total 42 [2024-09-08 15:06:44,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234775235] [2024-09-08 15:06:44,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:06:44,812 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-08 15:06:44,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:06:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-08 15:06:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1542, Unknown=0, NotChecked=0, Total=1806 [2024-09-08 15:06:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:44,813 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:06:44,813 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.27906976744186) internal successors, (184), 42 states have internal predecessors, (184), 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) [2024-09-08 15:06:44,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:06:44,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 15:06:44,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.