./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 e94c40da Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/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-dev-e94c40d-m [2024-09-23 00:30:00,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 00:30:00,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 00:30:00,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 00:30:00,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 00:30:00,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 00:30:00,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 00:30:00,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 00:30:00,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 00:30:00,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 00:30:00,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 00:30:00,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 00:30:00,293 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 00:30:00,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 00:30:00,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 00:30:00,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 00:30:00,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 00:30:00,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 00:30:00,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 00:30:00,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 00:30:00,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 00:30:00,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 00:30:00,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 00:30:00,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 00:30:00,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 00:30:00,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 00:30:00,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 00:30:00,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 00:30:00,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 00:30:00,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 00:30:00,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:30:00,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 00:30:00,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 00:30:00,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 00:30:00,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 00:30:00,305 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 00:30:00,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 00:30:00,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 00:30:00,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 00:30:00,306 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 00:30:00,306 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 00:30:00,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-23 00:30:00,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 00:30:00,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 00:30:00,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 00:30:00,571 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 00:30:00,571 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 00:30:00,572 INFO L431 ainManager$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 [2024-09-23 00:30:00,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 00:30:00,673 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 00:30:00,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2024-09-23 00:30:02,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 00:30:02,236 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 00:30:02,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2024-09-23 00:30:02,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ae1674e1/62baae07c81e48b78b3207ab0673857d/FLAG2a6e4b607 [2024-09-23 00:30:02,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ae1674e1/62baae07c81e48b78b3207ab0673857d [2024-09-23 00:30:02,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 00:30:02,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 00:30:02,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 00:30:02,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 00:30:02,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 00:30:02,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:30:00" (1/2) ... [2024-09-23 00:30:02,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233967cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:30:02, skipping insertion in model container [2024-09-23 00:30:02,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:30:00" (1/2) ... [2024-09-23 00:30:02,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ad5bc3c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:30:02, skipping insertion in model container [2024-09-23 00:30:02,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:30:02" (2/2) ... [2024-09-23 00:30:02,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233967cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02, skipping insertion in model container [2024-09-23 00:30:02,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:30:02" (2/2) ... [2024-09-23 00:30:02,287 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 00:30:02,287 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) [2024-09-23 00:30:02,288 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) [2024-09-23 00:30:02,288 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) [2024-09-23 00:30:02,288 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) [2024-09-23 00:30:02,289 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) [2024-09-23 00:30:02,289 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) [2024-09-23 00:30:02,289 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-23 00:30:02,289 INFO L1541 ArrayList]: ghost_update [L160-L160] multithreaded = 1; [2024-09-23 00:30:02,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 00:30:02,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:30:02,506 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 [2024-09-23 00:30:02,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:30:02,743 INFO L204 MainTranslator]: Completed translation [2024-09-23 00:30:02,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02 WrapperNode [2024-09-23 00:30:02,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 00:30:02,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 00:30:02,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 00:30:02,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 00:30:02,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,823 INFO L138 Inliner]: procedures = 28, calls = 59, calls flagged for inlining = 23, calls inlined = 33, statements flattened = 394 [2024-09-23 00:30:02,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 00:30:02,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 00:30:02,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 00:30:02,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 00:30:02,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 00:30:02,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 00:30:02,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 00:30:02,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 00:30:02,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (1/1) ... [2024-09-23 00:30:02,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:30:02,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:02,933 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) [2024-09-23 00:30:02,935 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 [2024-09-23 00:30:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 00:30:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-23 00:30:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-23 00:30:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-23 00:30:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-23 00:30:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-23 00:30:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-23 00:30:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-23 00:30:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-23 00:30:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-23 00:30:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-23 00:30:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 00:30:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-23 00:30:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-23 00:30:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-09-23 00:30:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-09-23 00:30:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 00:30:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 00:30:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-23 00:30:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 00:30:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 00:30:02,991 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 00:30:03,112 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 00:30:03,113 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 00:30:03,955 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 00:30:03,955 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 00:30:04,339 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 00:30:04,339 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-23 00:30:04,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:30:04 BoogieIcfgContainer [2024-09-23 00:30:04,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 00:30:04,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 00:30:04,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 00:30:04,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 00:30:04,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:30:00" (1/4) ... [2024-09-23 00:30:04,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bef960 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 12:30:04, skipping insertion in model container [2024-09-23 00:30:04,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 12:30:02" (2/4) ... [2024-09-23 00:30:04,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bef960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:30:04, skipping insertion in model container [2024-09-23 00:30:04,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:30:02" (3/4) ... [2024-09-23 00:30:04,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bef960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:30:04, skipping insertion in model container [2024-09-23 00:30:04,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:30:04" (4/4) ... [2024-09-23 00:30:04,351 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2024-09-23 00:30:04,368 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 00:30:04,369 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-23 00:30:04,369 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 00:30:04,576 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-09-23 00:30:04,622 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:30:04,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 00:30:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:04,625 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) [2024-09-23 00:30:04,627 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 [2024-09-23 00:30:04,662 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 00:30:04,675 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork2 ======== [2024-09-23 00:30:04,681 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;@390af1a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:30:04,683 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-23 00:30:05,153 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:05,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash 68454086, now seen corresponding path program 1 times [2024-09-23 00:30:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:05,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118242742] [2024-09-23 00:30:05,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:05,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:08,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:08,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118242742] [2024-09-23 00:30:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118242742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:30:08,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 00:30:08,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 00:30:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238251414] [2024-09-23 00:30:08,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:08,627 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 00:30:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:08,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 00:30:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-23 00:30:08,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:08,656 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:08,658 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) [2024-09-23 00:30:08,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:09,857 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 00:30:09,857 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:09,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1087409311, now seen corresponding path program 1 times [2024-09-23 00:30:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116432653] [2024-09-23 00:30:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-23 00:30:12,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:12,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116432653] [2024-09-23 00:30:12,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116432653] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:30:12,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 00:30:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 00:30:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207487053] [2024-09-23 00:30:12,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:12,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 00:30:12,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 00:30:12,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 00:30:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:12,033 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:12,033 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) [2024-09-23 00:30:12,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:12,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:13,089 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-23 00:30:13,089 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:13,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash -240813861, now seen corresponding path program 1 times [2024-09-23 00:30:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:13,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187102510] [2024-09-23 00:30:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:13,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:30:13,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:13,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187102510] [2024-09-23 00:30:13,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187102510] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:30:13,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 00:30:13,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 00:30:13,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869992823] [2024-09-23 00:30:13,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:13,328 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 00:30:13,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:13,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 00:30:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 00:30:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:13,329 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:13,329 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) [2024-09-23 00:30:13,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:13,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:13,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:13,428 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-23 00:30:13,429 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:13,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -665865937, now seen corresponding path program 1 times [2024-09-23 00:30:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:13,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297087013] [2024-09-23 00:30:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:13,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:30:13,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297087013] [2024-09-23 00:30:13,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297087013] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:13,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025814237] [2024-09-23 00:30:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:13,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:13,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:13,696 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) [2024-09-23 00:30:13,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-23 00:30:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:13,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 00:30:13,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:30:13,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:30:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:30:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025814237] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:30:14,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:30:14,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-23 00:30:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225578720] [2024-09-23 00:30:14,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:30:14,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-23 00:30:14,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-23 00:30:14,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-23 00:30:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:14,023 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:14,023 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) [2024-09-23 00:30:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:14,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:14,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-23 00:30:14,392 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 [2024-09-23 00:30:14,393 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:14,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:14,393 INFO L85 PathProgramCache]: Analyzing trace with hash -957578405, now seen corresponding path program 2 times [2024-09-23 00:30:14,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:14,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051870878] [2024-09-23 00:30:14,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:14,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051870878] [2024-09-23 00:30:14,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051870878] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139510850] [2024-09-23 00:30:14,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:30:14,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:14,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:14,839 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) [2024-09-23 00:30:14,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-23 00:30:14,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 00:30:14,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:30:14,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-23 00:30:14,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:30:15,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 00:30:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139510850] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:30:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 00:30:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-23 00:30:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946078310] [2024-09-23 00:30:15,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:15,812 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 00:30:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:15,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 00:30:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-23 00:30:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:15,813 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:15,813 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) [2024-09-23 00:30:15,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:15,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:15,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:15,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:15,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:16,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-23 00:30:17,051 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 [2024-09-23 00:30:17,052 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:17,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1681666865, now seen corresponding path program 1 times [2024-09-23 00:30:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:17,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263440436] [2024-09-23 00:30:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:17,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:17,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:17,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263440436] [2024-09-23 00:30:17,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263440436] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:17,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850817127] [2024-09-23 00:30:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:17,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:17,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:17,377 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) [2024-09-23 00:30:17,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-23 00:30:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:17,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 00:30:17,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:17,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:30:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:17,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850817127] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:17,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-23 00:30:17,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 13 [2024-09-23 00:30:17,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063100306] [2024-09-23 00:30:17,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:17,753 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 00:30:17,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 00:30:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-23 00:30:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:17,754 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:17,754 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) [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:17,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:18,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:18,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-23 00:30:18,204 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 [2024-09-23 00:30:18,205 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:18,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1955388734, now seen corresponding path program 1 times [2024-09-23 00:30:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:18,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15953182] [2024-09-23 00:30:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:18,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:21,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:21,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15953182] [2024-09-23 00:30:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15953182] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:21,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131166981] [2024-09-23 00:30:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:21,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:21,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:21,487 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) [2024-09-23 00:30:21,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-23 00:30:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:21,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-23 00:30:21,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:22,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:30:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:41,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131166981] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:30:41,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:30:41,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2024-09-23 00:30:41,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833692932] [2024-09-23 00:30:41,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:30:41,134 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-23 00:30:41,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-23 00:30:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2024-09-23 00:30:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:41,136 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:41,136 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) [2024-09-23 00:30:41,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:41,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:41,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:41,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:41,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:41,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:41,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:30:45,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-23 00:30:45,940 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 [2024-09-23 00:30:45,941 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:45,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash -147335230, now seen corresponding path program 2 times [2024-09-23 00:30:45,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:45,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843677824] [2024-09-23 00:30:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:45,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843677824] [2024-09-23 00:30:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843677824] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:48,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640002688] [2024-09-23 00:30:48,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:30:48,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:48,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:48,952 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) [2024-09-23 00:30:48,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-23 00:30:49,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 00:30:49,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:30:49,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-23 00:30:49,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 00:30:50,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 00:30:50,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640002688] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:30:50,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 00:30:50,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2024-09-23 00:30:50,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247905773] [2024-09-23 00:30:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:30:50,587 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-23 00:30:50,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:30:50,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-23 00:30:50,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-09-23 00:30:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:50,588 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:30:50,588 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) [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:30:50,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:30:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:30:50,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-23 00:30:51,104 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 [2024-09-23 00:30:51,104 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:30:51,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:30:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1732786110, now seen corresponding path program 3 times [2024-09-23 00:30:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:30:51,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798891352] [2024-09-23 00:30:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:30:51,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:30:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:30:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:30:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:30:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798891352] [2024-09-23 00:30:54,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798891352] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:30:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134340061] [2024-09-23 00:30:54,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-23 00:30:54,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:30:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:30:54,042 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) [2024-09-23 00:30:54,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-23 00:30:54,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-23 00:30:54,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:30:54,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-23 00:30:54,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:30:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 00:30:55,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:31:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 00:31:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134340061] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-23 00:31:09,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-23 00:31:09,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 6] total 24 [2024-09-23 00:31:09,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543101786] [2024-09-23 00:31:09,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:31:09,681 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-23 00:31:09,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:31:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-23 00:31:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2024-09-23 00:31:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:31:09,682 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:31:09,683 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) [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:09,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:31:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:31:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:31:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:31:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:31:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:31:21,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-23 00:31:21,918 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 [2024-09-23 00:31:21,919 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:31:21,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:31:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -443440170, now seen corresponding path program 1 times [2024-09-23 00:31:21,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:31:21,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326436248] [2024-09-23 00:31:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:31:21,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:31:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:31:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:31:24,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:31:24,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326436248] [2024-09-23 00:31:24,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326436248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:31:24,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883559343] [2024-09-23 00:31:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:31:24,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:31:24,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:31:24,325 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) [2024-09-23 00:31:24,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-23 00:31:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:31:24,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-23 00:31:24,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:31:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:31:25,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:31:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:31:42,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883559343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:31:42,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:31:42,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 33 [2024-09-23 00:31:42,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260926455] [2024-09-23 00:31:42,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:31:42,017 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-23 00:31:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:31:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-23 00:31:42,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-09-23 00:31:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:31:42,018 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:31:42,018 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) [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:31:42,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:32:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:32:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:32:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:32:06,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-23 00:32:06,220 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 [2024-09-23 00:32:06,221 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:32:06,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:32:06,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1927477718, now seen corresponding path program 2 times [2024-09-23 00:32:06,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:32:06,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809957347] [2024-09-23 00:32:06,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:32:06,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:32:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:32:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:32:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:32:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809957347] [2024-09-23 00:32:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809957347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:32:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395315102] [2024-09-23 00:32:09,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:32:09,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:32:09,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:32:09,153 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) [2024-09-23 00:32:09,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-23 00:32:09,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 00:32:09,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:32:09,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-23 00:32:09,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:32:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-23 00:32:10,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 00:32:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395315102] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:32:10,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 00:32:10,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 24 [2024-09-23 00:32:10,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932095175] [2024-09-23 00:32:10,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:32:10,505 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-23 00:32:10,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:32:10,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-23 00:32:10,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2024-09-23 00:32:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:32:10,506 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:32:10,506 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) [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:32:10,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:32:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:32:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:32:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:11,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-23 00:32:11,507 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 [2024-09-23 00:32:11,508 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:32:11,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:32:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1084560074, now seen corresponding path program 1 times [2024-09-23 00:32:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:32:11,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810881312] [2024-09-23 00:32:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:32:11,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:32:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:32:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:32:14,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:32:14,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810881312] [2024-09-23 00:32:14,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810881312] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:32:14,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855094043] [2024-09-23 00:32:14,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:32:14,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:32:14,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:32:14,707 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) [2024-09-23 00:32:14,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-23 00:32:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:32:14,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-09-23 00:32:14,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:32:17,092 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:32:17,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:32:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:32:38,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855094043] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:32:38,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:32:38,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 60 [2024-09-23 00:32:38,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624624792] [2024-09-23 00:32:38,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:32:38,617 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-23 00:32:38,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:32:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-23 00:32:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=3097, Unknown=0, NotChecked=0, Total=3782 [2024-09-23 00:32:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:32:38,620 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:32:38,620 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) [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:32:38,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:32:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:32:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:32:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:32:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-23 00:32:58,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-23 00:32:58,544 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 [2024-09-23 00:32:58,544 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:32:58,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:32:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1908490550, now seen corresponding path program 2 times [2024-09-23 00:32:58,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:32:58,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786450884] [2024-09-23 00:32:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:32:58,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:32:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:33:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:33:03,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:33:03,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786450884] [2024-09-23 00:33:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786450884] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:33:03,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183445666] [2024-09-23 00:33:03,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:33:03,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:33:03,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:33:03,825 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) [2024-09-23 00:33:03,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-23 00:33:03,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-23 00:33:03,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:33:04,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-23 00:33:04,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:33:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:33:08,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:33:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 4 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:33:27,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183445666] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:33:27,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:33:27,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 108 [2024-09-23 00:33:27,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974185793] [2024-09-23 00:33:27,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:33:27,769 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2024-09-23 00:33:27,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:33:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2024-09-23 00:33:27,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2379, Invalid=9611, Unknown=0, NotChecked=0, Total=11990 [2024-09-23 00:33:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:33:27,773 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:33:27,773 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) [2024-09-23 00:33:27,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:33:27,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:33:27,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-09-23 00:33:27,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:34:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:34:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-23 00:34:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-23 00:34:55,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-23 00:34:55,536 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 [2024-09-23 00:34:55,537 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:34:55,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:34:55,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1189746378, now seen corresponding path program 3 times [2024-09-23 00:34:55,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:34:55,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738328251] [2024-09-23 00:34:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:34:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:34:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:35:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 0 proven. 1957 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:35:05,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:35:05,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738328251] [2024-09-23 00:35:05,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738328251] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:35:05,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917237710] [2024-09-23 00:35:05,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-23 00:35:05,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:35:05,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:35:05,729 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) [2024-09-23 00:35:05,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-23 00:35:05,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-23 00:35:05,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:35:05,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-23 00:35:05,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:35:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2024-09-23 00:35:08,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:35:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2024-09-23 00:35:24,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917237710] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-23 00:35:24,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-23 00:35:24,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [68, 6] total 80 [2024-09-23 00:35:24,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270653729] [2024-09-23 00:35:24,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:35:24,624 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-23 00:35:24,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:35:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-23 00:35:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=6425, Unknown=0, NotChecked=0, Total=6642 [2024-09-23 00:35:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:35:24,625 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:35:24,626 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) [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-09-23 00:35:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:35:42,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-23 00:35:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-23 00:35:42,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-23 00:35:43,021 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 [2024-09-23 00:35:43,021 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:35:43,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:35:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1090941939, now seen corresponding path program 1 times [2024-09-23 00:35:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:35:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826317150] [2024-09-23 00:35:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:35:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:35:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:35:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1830 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:35:46,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:35:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826317150] [2024-09-23 00:35:46,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826317150] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:35:46,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198314207] [2024-09-23 00:35:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:35:46,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:35:46,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:35:46,563 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) [2024-09-23 00:35:46,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-23 00:35:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:35:46,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-09-23 00:35:46,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:35:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1891 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:35:50,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:35:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1953 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:35:55,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198314207] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:35:55,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:35:55,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 196 [2024-09-23 00:35:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857731202] [2024-09-23 00:35:55,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:35:55,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2024-09-23 00:35:55,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:35:55,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2024-09-23 00:35:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10106, Invalid=28506, Unknown=0, NotChecked=0, Total=38612 [2024-09-23 00:35:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:35:55,165 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:35:55,165 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) [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:35:55,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-23 00:35:55,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:35:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-23 00:35:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-23 00:35:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-23 00:35:59,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-23 00:35:59,409 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 [2024-09-23 00:35:59,410 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:35:59,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:35:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash -634395526, now seen corresponding path program 1 times [2024-09-23 00:35:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:35:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848523516] [2024-09-23 00:35:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:35:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:35:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:36:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:36:10,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:36:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848523516] [2024-09-23 00:36:10,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848523516] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:36:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200626353] [2024-09-23 00:36:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:36:10,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:36:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:36:10,427 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) [2024-09-23 00:36:10,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-23 00:36:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:36:10,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-09-23 00:36:10,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:36:23,346 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 [2024-09-23 00:36:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:36:23,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:36:35,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 00:36:35,576 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 [2024-09-23 00:37:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 0 proven. 1955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:37:38,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200626353] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:37:38,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:37:38,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68, 69] total 206 [2024-09-23 00:37:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375567632] [2024-09-23 00:37:38,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:37:38,139 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2024-09-23 00:37:38,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:37:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2024-09-23 00:37:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8669, Invalid=34387, Unknown=0, NotChecked=0, Total=43056 [2024-09-23 00:37:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:37:38,146 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:37:38,146 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) [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:37:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-23 00:37:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-09-23 00:37:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-23 00:37:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2024-09-23 00:37:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:37:48,538 WARN L293 SmtUtils]: Spent 8.86s 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) [2024-09-23 00:38:21,113 WARN L293 SmtUtils]: Spent 6.14s 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) [2024-09-23 00:38:28,044 WARN L293 SmtUtils]: Spent 6.00s 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) [2024-09-23 00:38:34,768 WARN L293 SmtUtils]: Spent 5.87s 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) [2024-09-23 00:38:41,228 WARN L293 SmtUtils]: Spent 5.66s 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) [2024-09-23 00:38:47,660 WARN L293 SmtUtils]: Spent 5.62s 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) [2024-09-23 00:38:53,974 WARN L293 SmtUtils]: Spent 5.51s 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) [2024-09-23 00:39:00,202 WARN L293 SmtUtils]: Spent 5.37s 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) [2024-09-23 00:39:06,247 WARN L293 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 353 DAG size of output: 327 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 00:39:12,089 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 348 DAG size of output: 322 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 00:39:17,920 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 343 DAG size of output: 317 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 00:42:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-23 00:42:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-09-23 00:42:11,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-23 00:42:11,469 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 [2024-09-23 00:42:11,470 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread4Thread1of1ForFork2Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:42:11,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:42:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1714473862, now seen corresponding path program 2 times [2024-09-23 00:42:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:42:11,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247344356] [2024-09-23 00:42:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:42:11,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:42:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:42:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 8003 backedges. 0 proven. 8003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:42:38,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:42:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247344356] [2024-09-23 00:42:38,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247344356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:42:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658805734] [2024-09-23 00:42:38,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:42:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:42:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:42:38,808 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) [2024-09-23 00:42:38,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-23 00:42:39,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-23 00:42:39,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:42:39,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 295 conjuncts are in the unsatisfiable core [2024-09-23 00:42:39,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:43:14,647 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 [2024-09-23 00:43:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8003 backedges. 0 proven. 8003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:43:15,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... Killed by 15