./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-07 21:18:06,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-07 21:18:06,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-07 21:18:06,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-07 21:18:06,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-07 21:18:06,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-07 21:18:06,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-07 21:18:06,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-07 21:18:06,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-07 21:18:06,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-07 21:18:06,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-07 21:18:06,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-07 21:18:06,347 INFO L153 SettingsManager]: * Use SBE=true [2024-09-07 21:18:06,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-07 21:18:06,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-07 21:18:06,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-07 21:18:06,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-07 21:18:06,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-07 21:18:06,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-07 21:18:06,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-07 21:18:06,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-07 21:18:06,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-07 21:18:06,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-07 21:18:06,354 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-07 21:18:06,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-07 21:18:06,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-07 21:18:06,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-07 21:18:06,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-07 21:18:06,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:18:06,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-07 21:18:06,356 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-07 21:18:06,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-07 21:18:06,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-07 21:18:06,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-07 21:18:06,357 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-07 21:18:06,357 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-07 21:18:06,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-07 21:18:06,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-07 21:18:06,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-07 21:18:06,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-07 21:18:06,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-07 21:18:06,630 INFO L274 PluginConnector]: CDTParser initialized [2024-09-07 21:18:06,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2024-09-07 21:18:07,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-07 21:18:08,109 INFO L384 CDTParser]: Found 1 translation units. [2024-09-07 21:18:08,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2024-09-07 21:18:08,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ceee0e82/a9b435e8d472419484d3e1ce7056048f/FLAGdafc36600 [2024-09-07 21:18:08,499 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ceee0e82/a9b435e8d472419484d3e1ce7056048f [2024-09-07 21:18:08,501 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-07 21:18:08,503 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-07 21:18:08,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/parallel-parallel-sum-2.wvr.yml/witness.yml [2024-09-07 21:18:08,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-07 21:18:08,586 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-07 21:18:08,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-07 21:18:08,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-07 21:18:08,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-07 21:18:08,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:18:08" (1/2) ... [2024-09-07 21:18:08,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b486ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:18:08, skipping insertion in model container [2024-09-07 21:18:08,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:18:08" (1/2) ... [2024-09-07 21:18:08,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ddca81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:18:08, skipping insertion in model container [2024-09-07 21:18:08,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:08" (2/2) ... [2024-09-07 21:18:08,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b486ec9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:08, skipping insertion in model container [2024-09-07 21:18:08,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:08" (2/2) ... [2024-09-07 21:18:08,620 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-07 21:18:08,620 INFO L1541 ArrayList]: Location invariant before [L128-L128] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,621 INFO L1541 ArrayList]: Location invariant before [L162-L162] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,621 INFO L1541 ArrayList]: Location invariant before [L82-L82] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,621 INFO L1541 ArrayList]: Location invariant before [L81-L81] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,621 INFO L1541 ArrayList]: Location invariant before [L127-L127] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,622 INFO L1541 ArrayList]: Location invariant before [L161-L161] ((! multithreaded || n <= 2147483646) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i1) + (long long )n >= 0LL && (2147483648LL + (long long )i2) + (long long )n >= 0LL) && (2147483649LL + (long long )n) + (long long )s11 >= 0LL) && (2147483649LL + (long long )n) + (long long )s21 >= 0LL) && (2147483649LL + (long long )n) + (long long )s12 >= 0LL) && (2147483649LL + (long long )n) + (long long )s22 >= 0LL) && (2147483649LL + (long long )n) + (long long )x1 >= 0LL) && (2147483649LL + (long long )n) + (long long )x2 >= 0LL) && (4294967294LL + (long long )i1) + (long long )i2 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i1) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i1) + (long long )x2 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s11 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s21 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s12 >= 0LL) && (4294967295LL + (long long )i2) + (long long )s22 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x1 >= 0LL) && (4294967295LL + (long long )i2) + (long long )x2 >= 0LL) && (2147483647LL - (long long )i1) + (long long )n >= 0LL) && (2147483647LL - (long long )i2) + (long long )n >= 0LL) && (3221225470LL - (long long )n) + (long long )s11 >= 0LL) && (3221225470LL - (long long )n) + (long long )s21 >= 0LL) && (3221225470LL - (long long )n) + (long long )s12 >= 0LL) && (3221225470LL - (long long )n) + (long long )s22 >= 0LL) && (3221225470LL - (long long )n) + (long long )x1 >= 0LL) && (3221225470LL - (long long )n) + (long long )x2 >= 0LL) && (4294967293LL - (long long )i1) + (long long )i2 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i1) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i1) + (long long )x2 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s11 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s21 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s12 >= 0LL) && (4294967294LL - (long long )i2) + (long long )s22 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x1 >= 0LL) && (4294967294LL - (long long )i2) + (long long )x2 >= 0LL) && (2147483648LL + (long long )n) - (long long )s11 >= 0LL) && (2147483648LL + (long long )n) - (long long )s21 >= 0LL) && (2147483648LL + (long long )n) - (long long )s12 >= 0LL) && (2147483648LL + (long long )n) - (long long )s22 >= 0LL) && (2147483648LL + (long long )n) - (long long )x1 >= 0LL) && (2147483648LL + (long long )n) - (long long )x2 >= 0LL) && (3221225469LL + (long long )i1) - (long long )n >= 0LL) && (3221225469LL + (long long )i2) - (long long )n >= 0LL) && (4294967293LL + (long long )i1) - (long long )i2 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i1) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i1) - (long long )x2 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s11 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s21 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s12 >= 0LL) && (4294967294LL + (long long )i2) - (long long )s22 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x1 >= 0LL) && (4294967294LL + (long long )i2) - (long long )x2 >= 0LL) && (3221225468LL - (long long )i1) - (long long )n >= 0LL) && (3221225468LL - (long long )i2) - (long long )n >= 0LL) && (3221225469LL - (long long )n) - (long long )s11 >= 0LL) && (3221225469LL - (long long )n) - (long long )s21 >= 0LL) && (3221225469LL - (long long )n) - (long long )s12 >= 0LL) && (3221225469LL - (long long )n) - (long long )s22 >= 0LL) && (3221225469LL - (long long )n) - (long long )x1 >= 0LL) && (3221225469LL - (long long )n) - (long long )x2 >= 0LL) && (4294967292LL - (long long )i1) - (long long )i2 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i1) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i1) - (long long )x2 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s11 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s21 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s12 >= 0LL) && (4294967293LL - (long long )i2) - (long long )s22 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x1 >= 0LL) && (4294967293LL - (long long )i2) - (long long )x2 >= 0LL))) && (! multithreaded || n <= 2147483646) [2024-09-07 21:18:08,622 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-07 21:18:08,622 INFO L1541 ArrayList]: ghost_update [L160-L160] multithreaded = 1; [2024-09-07 21:18:08,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-07 21:18:08,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:18:08,820 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-07 21:18:09,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:18:09,149 INFO L204 MainTranslator]: Completed translation [2024-09-07 21:18:09,149 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09 WrapperNode [2024-09-07 21:18:09,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-07 21:18:09,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-07 21:18:09,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-07 21:18:09,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-07 21:18:09,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,256 INFO L138 Inliner]: procedures = 28, calls = 59, calls flagged for inlining = 23, calls inlined = 33, statements flattened = 394 [2024-09-07 21:18:09,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-07 21:18:09,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-07 21:18:09,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-07 21:18:09,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-07 21:18:09,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-07 21:18:09,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-07 21:18:09,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-07 21:18:09,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-07 21:18:09,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (1/1) ... [2024-09-07 21:18:09,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:18:09,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:09,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-07 21:18:09,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-07 21:18:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-07 21:18:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-07 21:18:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-07 21:18:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-07 21:18:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-07 21:18:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-07 21:18:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-07 21:18:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-07 21:18:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-07 21:18:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-07 21:18:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-07 21:18:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-07 21:18:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-07 21:18:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-07 21:18:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-09-07 21:18:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-09-07 21:18:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-07 21:18:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-07 21:18:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-07 21:18:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-07 21:18:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-07 21:18:09,418 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-07 21:18:09,536 INFO L242 CfgBuilder]: Building ICFG [2024-09-07 21:18:09,538 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-07 21:18:10,153 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-07 21:18:10,153 INFO L291 CfgBuilder]: Performing block encoding [2024-09-07 21:18:10,552 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-07 21:18:10,555 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-07 21:18:10,555 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:18:10 BoogieIcfgContainer [2024-09-07 21:18:10,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-07 21:18:10,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-07 21:18:10,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-07 21:18:10,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-07 21:18:10,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 09:18:08" (1/4) ... [2024-09-07 21:18:10,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7100fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 09:18:10, skipping insertion in model container [2024-09-07 21:18:10,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:18:08" (2/4) ... [2024-09-07 21:18:10,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7100fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:18:10, skipping insertion in model container [2024-09-07 21:18:10,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:18:09" (3/4) ... [2024-09-07 21:18:10,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7100fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:18:10, skipping insertion in model container [2024-09-07 21:18:10,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:18:10" (4/4) ... [2024-09-07 21:18:10,564 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2024-09-07 21:18:10,579 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-07 21:18:10,579 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-07 21:18:10,579 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-07 21:18:10,755 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-09-07 21:18:10,789 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:10,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-07 21:18:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:10,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-07 21:18:10,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-07 21:18:10,820 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-07 21:18:10,832 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork2 ======== [2024-09-07 21:18:10,839 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;@4a093d06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:18:10,840 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-07 21:18:11,200 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:11,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash 68454086, now seen corresponding path program 1 times [2024-09-07 21:18:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:11,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562317676] [2024-09-07 21:18:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:14,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562317676] [2024-09-07 21:18:14,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562317676] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:14,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:18:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-07 21:18:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215860529] [2024-09-07 21:18:14,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:14,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:18:14,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:18:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-07 21:18:14,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:14,065 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:14,066 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:14,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:14,985 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-07 21:18:14,985 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:14,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:14,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1087409311, now seen corresponding path program 1 times [2024-09-07 21:18:14,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:14,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120577676] [2024-09-07 21:18:14,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:14,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-07 21:18:16,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:16,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120577676] [2024-09-07 21:18:16,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120577676] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:16,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:18:16,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-07 21:18:16,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931007070] [2024-09-07 21:18:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:16,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:18:16,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:16,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:18:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-07 21:18:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:16,902 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:16,902 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:16,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:16,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:17,866 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-07 21:18:17,867 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:17,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash -240813861, now seen corresponding path program 1 times [2024-09-07 21:18:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:17,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140935746] [2024-09-07 21:18:17,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:17,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:18,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-07 21:18:18,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:18,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140935746] [2024-09-07 21:18:18,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140935746] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:18,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:18:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-07 21:18:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309933587] [2024-09-07 21:18:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:18,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-07 21:18:18,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-07 21:18:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-07 21:18:18,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:18,029 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:18,029 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:18,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:18,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:18,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:18,105 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-07 21:18:18,105 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:18,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash -665865937, now seen corresponding path program 1 times [2024-09-07 21:18:18,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:18,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106357744] [2024-09-07 21:18:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:18,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-07 21:18:18,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:18,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106357744] [2024-09-07 21:18:18,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106357744] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:18,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041344213] [2024-09-07 21:18:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:18,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:18,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:18,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:18,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-07 21:18:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:18,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-07 21:18:18,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-07 21:18:18,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-07 21:18:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041344213] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:18,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-07 21:18:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339501169] [2024-09-07 21:18:18,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:18,648 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-07 21:18:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-07 21:18:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-07 21:18:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:18,649 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:18,650 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:18,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:18,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:18,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:18,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:18,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:18,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-07 21:18:18,984 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:18,984 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:18,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash -957578405, now seen corresponding path program 2 times [2024-09-07 21:18:18,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:18,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313565947] [2024-09-07 21:18:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:19,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:19,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313565947] [2024-09-07 21:18:19,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313565947] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:19,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141463621] [2024-09-07 21:18:19,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:18:19,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:19,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:19,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-07 21:18:19,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-07 21:18:19,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:18:19,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-07 21:18:19,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-07 21:18:20,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-07 21:18:20,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141463621] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-07 21:18:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-07 21:18:20,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494207277] [2024-09-07 21:18:20,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:20,062 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:18:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:20,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:18:20,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-07 21:18:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:20,064 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:20,064 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:20,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:20,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:20,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:20,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:21,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:21,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:21,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-07 21:18:21,308 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 [2024-09-07 21:18:21,309 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:21,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1681666865, now seen corresponding path program 1 times [2024-09-07 21:18:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:21,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209110800] [2024-09-07 21:18:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:21,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209110800] [2024-09-07 21:18:21,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209110800] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915716250] [2024-09-07 21:18:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:21,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:21,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:21,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:21,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-07 21:18:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:21,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-07 21:18:21,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:21,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:21,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:21,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915716250] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:21,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:18:21,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 13 [2024-09-07 21:18:21,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823383967] [2024-09-07 21:18:21,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:21,894 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-07 21:18:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-07 21:18:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-07 21:18:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:21,895 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:21,895 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:21,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:21,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:22,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-07 21:18:22,327 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 [2024-09-07 21:18:22,328 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:22,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:22,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1955388734, now seen corresponding path program 1 times [2024-09-07 21:18:22,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:22,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598497960] [2024-09-07 21:18:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:22,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:24,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:24,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598497960] [2024-09-07 21:18:24,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598497960] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:24,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194047465] [2024-09-07 21:18:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:24,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:24,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:24,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:24,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-07 21:18:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:24,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-07 21:18:24,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:25,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:18:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:44,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194047465] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:18:44,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:18:44,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2024-09-07 21:18:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661661281] [2024-09-07 21:18:44,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:18:44,122 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-07 21:18:44,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:44,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-07 21:18:44,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2024-09-07 21:18:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:44,124 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:44,124 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 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) [2024-09-07 21:18:44,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:44,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:44,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:44,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:44,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:44,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:44,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:48,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-07 21:18:48,509 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 [2024-09-07 21:18:48,510 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:48,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:48,510 INFO L85 PathProgramCache]: Analyzing trace with hash -147335230, now seen corresponding path program 2 times [2024-09-07 21:18:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:48,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422020762] [2024-09-07 21:18:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:48,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:50,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422020762] [2024-09-07 21:18:50,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422020762] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292092992] [2024-09-07 21:18:50,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:18:50,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:50,989 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:50,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-07 21:18:51,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-07 21:18:51,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:18:51,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-07 21:18:51,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-07 21:18:52,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-07 21:18:52,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292092992] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:18:52,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-07 21:18:52,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2024-09-07 21:18:52,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314742529] [2024-09-07 21:18:52,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:18:52,432 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-07 21:18:52,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:18:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-07 21:18:52,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-09-07 21:18:52,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:52,433 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:18:52,433 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:18:52,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:52,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:52,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:52,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:18:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:18:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:18:52,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-07 21:18:52,940 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 [2024-09-07 21:18:52,941 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:18:52,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:18:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1732786110, now seen corresponding path program 3 times [2024-09-07 21:18:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:18:52,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517817383] [2024-09-07 21:18:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:18:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:18:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:18:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:18:55,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:18:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517817383] [2024-09-07 21:18:55,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517817383] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:18:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121622171] [2024-09-07 21:18:55,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-07 21:18:55,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:18:55,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:18:55,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:18:55,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-07 21:18:55,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-07 21:18:55,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:18:55,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-07 21:18:55,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:18:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-07 21:18:56,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:19:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-07 21:19:11,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121622171] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:19:11,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:19:11,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 6] total 24 [2024-09-07 21:19:11,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393794769] [2024-09-07 21:19:11,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:19:11,752 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-07 21:19:11,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:19:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-07 21:19:11,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2024-09-07 21:19:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:19:11,753 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:19:11,753 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:19:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:19:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:19:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:11,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:19:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:19:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:19:22,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-07 21:19:22,441 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 [2024-09-07 21:19:22,441 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:19:22,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:19:22,442 INFO L85 PathProgramCache]: Analyzing trace with hash -443440170, now seen corresponding path program 1 times [2024-09-07 21:19:22,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:19:22,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568094321] [2024-09-07 21:19:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:19:22,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:19:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:19:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:19:24,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:19:24,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568094321] [2024-09-07 21:19:24,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568094321] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:19:24,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659638529] [2024-09-07 21:19:24,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:19:24,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:19:24,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:19:24,458 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) [2024-09-07 21:19:24,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-07 21:19:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:19:24,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-07 21:19:24,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:19:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:19:25,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:19:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:19:42,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659638529] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:19:42,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:19:42,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 33 [2024-09-07 21:19:42,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359249791] [2024-09-07 21:19:42,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:19:42,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-07 21:19:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:19:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-07 21:19:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-09-07 21:19:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:19:42,070 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:19:42,070 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.8823529411764706) internal successors, (132), 34 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:19:42,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:19:42,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:20:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:20:05,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-07 21:20:05,243 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 [2024-09-07 21:20:05,244 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:20:05,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:20:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1927477718, now seen corresponding path program 2 times [2024-09-07 21:20:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:20:05,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352656633] [2024-09-07 21:20:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:20:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:20:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:20:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:20:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:20:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352656633] [2024-09-07 21:20:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352656633] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:20:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685093603] [2024-09-07 21:20:08,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:20:08,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:20:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:20:08,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:20:08,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-07 21:20:08,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-07 21:20:08,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:20:08,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-07 21:20:08,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:20:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-07 21:20:09,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-07 21:20:09,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685093603] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:20:09,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-07 21:20:09,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 24 [2024-09-07 21:20:09,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908231446] [2024-09-07 21:20:09,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:20:09,395 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-07 21:20:09,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:20:09,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-07 21:20:09,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2024-09-07 21:20:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:20:09,396 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:20:09,396 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:20:09,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:20:09,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:20:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:20:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:20:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:10,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-07 21:20:10,303 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 [2024-09-07 21:20:10,304 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:20:10,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:20:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1084560074, now seen corresponding path program 1 times [2024-09-07 21:20:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:20:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084477733] [2024-09-07 21:20:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:20:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:20:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:20:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:20:13,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:20:13,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084477733] [2024-09-07 21:20:13,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084477733] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:20:13,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344808641] [2024-09-07 21:20:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:20:13,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:20:13,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:20:13,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:20:13,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-07 21:20:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:20:13,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-09-07 21:20:13,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:20:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:20:15,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:20:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:20:36,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344808641] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:20:36,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:20:36,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 60 [2024-09-07 21:20:36,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163961996] [2024-09-07 21:20:36,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:20:36,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-07 21:20:36,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:20:36,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-07 21:20:36,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=3097, Unknown=0, NotChecked=0, Total=3782 [2024-09-07 21:20:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:20:36,586 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:20:36,586 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 3.0491803278688523) internal successors, (186), 61 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:36,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:20:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:20:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-07 21:20:53,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-07 21:20:54,069 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 [2024-09-07 21:20:54,069 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:20:54,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:20:54,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1908490550, now seen corresponding path program 2 times [2024-09-07 21:20:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:20:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491586043] [2024-09-07 21:20:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:20:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:20:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:20:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:20:59,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:20:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491586043] [2024-09-07 21:20:59,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491586043] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:20:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098948578] [2024-09-07 21:20:59,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:20:59,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:20:59,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:20:59,164 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:20:59,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-07 21:20:59,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-07 21:20:59,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:20:59,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-07 21:20:59,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:21:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:21:03,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:21:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 4 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:21:23,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098948578] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:21:23,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:21:23,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 108 [2024-09-07 21:21:23,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904514879] [2024-09-07 21:21:23,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:21:23,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2024-09-07 21:21:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:21:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2024-09-07 21:21:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2379, Invalid=9611, Unknown=0, NotChecked=0, Total=11990 [2024-09-07 21:21:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:21:23,443 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:21:23,443 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 109 states have (on average 2.146788990825688) internal successors, (234), 109 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-09-07 21:21:23,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:22:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-07 21:22:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-07 21:22:40,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-07 21:22:40,788 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 [2024-09-07 21:22:40,789 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:22:40,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:22:40,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1189746378, now seen corresponding path program 3 times [2024-09-07 21:22:40,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:22:40,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318468877] [2024-09-07 21:22:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:22:40,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:22:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:22:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 0 proven. 1957 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:22:50,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:22:50,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318468877] [2024-09-07 21:22:50,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318468877] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:22:50,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274736513] [2024-09-07 21:22:50,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-07 21:22:50,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:22:50,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:22:50,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:22:50,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-07 21:22:50,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-07 21:22:50,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:22:50,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-07 21:22:50,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:22:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2024-09-07 21:22:53,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:23:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2024-09-07 21:23:10,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274736513] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-07 21:23:10,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-07 21:23:10,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [68, 6] total 80 [2024-09-07 21:23:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045342991] [2024-09-07 21:23:10,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:23:10,063 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-07 21:23:10,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:23:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-07 21:23:10,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=6425, Unknown=0, NotChecked=0, Total=6642 [2024-09-07 21:23:10,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:23:10,065 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:23:10,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:23:10,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:10,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:23:10,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:23:10,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:10,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-09-07 21:23:10,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-07 21:23:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-07 21:23:26,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-07 21:23:26,677 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 [2024-09-07 21:23:26,677 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:23:26,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:23:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1090941939, now seen corresponding path program 1 times [2024-09-07 21:23:26,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:23:26,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147625349] [2024-09-07 21:23:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:23:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:23:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:23:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1830 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:23:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:23:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147625349] [2024-09-07 21:23:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147625349] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:23:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457004064] [2024-09-07 21:23:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:23:29,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:23:29,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:23:29,908 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:23:29,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-07 21:23:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:23:30,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-09-07 21:23:30,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:23:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1891 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:23:34,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:23:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1953 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:23:38,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457004064] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:23:38,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:23:38,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 196 [2024-09-07 21:23:38,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555789778] [2024-09-07 21:23:38,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:23:38,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2024-09-07 21:23:38,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:23:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2024-09-07 21:23:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10106, Invalid=28506, Unknown=0, NotChecked=0, Total=38612 [2024-09-07 21:23:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:23:38,256 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:23:38,257 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 1.7106598984771573) internal successors, (337), 196 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-07 21:23:38,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-07 21:23:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:23:42,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:23:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-07 21:23:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-07 21:23:42,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-07 21:23:42,219 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 [2024-09-07 21:23:42,220 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:23:42,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:23:42,221 INFO L85 PathProgramCache]: Analyzing trace with hash -634395526, now seen corresponding path program 1 times [2024-09-07 21:23:42,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:23:42,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348322089] [2024-09-07 21:23:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:23:42,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:23:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:23:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:23:52,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:23:52,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348322089] [2024-09-07 21:23:52,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348322089] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:23:52,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412887747] [2024-09-07 21:23:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:23:52,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:23:52,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:23:52,630 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:23:52,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-07 21:23:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:23:52,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-09-07 21:23:52,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:24:06,455 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 [2024-09-07 21:24:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:24:06,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:24:17,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-07 21:24:17,890 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 759 treesize of output 515 [2024-09-07 21:25:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412887747] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:25:20,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:25:20,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68, 69] total 206 [2024-09-07 21:25:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249181567] [2024-09-07 21:25:20,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:25:20,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2024-09-07 21:25:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2024-09-07 21:25:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8669, Invalid=34387, Unknown=0, NotChecked=0, Total=43056 [2024-09-07 21:25:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:20,806 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:20,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 208 states, 207 states have (on average 1.608695652173913) internal successors, (333), 207 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-07 21:25:20,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2024-09-07 21:25:20,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:30,958 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification. DAG size of input: 573 DAG size of output: 551 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:03,644 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 387 DAG size of output: 362 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:09,638 WARN L293 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 382 DAG size of output: 357 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:15,811 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 378 DAG size of output: 352 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:21,972 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 373 DAG size of output: 347 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:28,397 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 368 DAG size of output: 342 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:34,818 WARN L293 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 363 DAG size of output: 337 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:26:40,920 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 358 DAG size of output: 332 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-07 21:29:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:29:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:29:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-07 21:29:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-09-07 21:29:30,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-07 21:29:31,014 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 [2024-09-07 21:29:31,014 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-07 21:29:31,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:29:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1714473862, now seen corresponding path program 2 times [2024-09-07 21:29:31,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:29:31,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630121181] [2024-09-07 21:29:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:29:31,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:29:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:29:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8003 backedges. 0 proven. 8003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:29:57,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:29:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630121181] [2024-09-07 21:29:57,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630121181] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:29:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314715879] [2024-09-07 21:29:57,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:29:57,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:29:57,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:29:57,310 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) [2024-09-07 21:29:57,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-07 21:29:57,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-07 21:29:57,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:29:57,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 295 conjuncts are in the unsatisfiable core [2024-09-07 21:29:57,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:30:29,778 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 [2024-09-07 21:30:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 8003 backedges. 0 proven. 8003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:30:30,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:30:43,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-07 21:30:43,317 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 759 treesize of output 515 Killed by 15