./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 20:25:47,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 20:25:48,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 20:25:48,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 20:25:48,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 20:25:48,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 20:25:48,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 20:25:48,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 20:25:48,041 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 20:25:48,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 20:25:48,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 20:25:48,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 20:25:48,043 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 20:25:48,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 20:25:48,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 20:25:48,046 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 20:25:48,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 20:25:48,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 20:25:48,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 20:25:48,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 20:25:48,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 20:25:48,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 20:25:48,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 20:25:48,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 20:25:48,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 20:25:48,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 20:25:48,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 20:25:48,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 20:25:48,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 20:25:48,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 20:25:48,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 20:25:48,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 20:25:48,052 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 20:25:48,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 20:25:48,053 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 20:25:48,053 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 20:25:48,055 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 20:25:48,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-13 20:25:48,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 20:25:48,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 20:25:48,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 20:25:48,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 20:25:48,284 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 20:25:48,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2024-08-13 20:25:49,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 20:25:49,710 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 20:25:49,711 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-equiv.wvr.c [2024-08-13 20:25:49,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/49db72703/9fefdf530b6140b191794d0a92c32078/FLAG7c9cff2ca [2024-08-13 20:25:49,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/49db72703/9fefdf530b6140b191794d0a92c32078 [2024-08-13 20:25:49,730 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 20:25:49,731 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 20:25:49,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/parallel-parallel-sum-equiv.wvr.yml/witness.yml [2024-08-13 20:25:49,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 20:25:49,814 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 20:25:49,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 20:25:49,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 20:25:49,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 20:25:49,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 08:25:49" (1/2) ... [2024-08-13 20:25:49,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72135fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 08:25:49, skipping insertion in model container [2024-08-13 20:25:49,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 08:25:49" (1/2) ... [2024-08-13 20:25:49,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4408a525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 08:25:49, skipping insertion in model container [2024-08-13 20:25:49,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 08:25:49" (2/2) ... [2024-08-13 20:25:49,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72135fd7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:49, skipping insertion in model container [2024-08-13 20:25:49,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 08:25:49" (2/2) ... [2024-08-13 20:25:49,824 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 20:25:49,846 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 20:25:49,847 INFO L97 edCorrectnessWitness]: Location invariant before [L93-L93] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-08-13 20:25:49,847 INFO L97 edCorrectnessWitness]: Location invariant before [L92-L92] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-08-13 20:25:49,848 INFO L97 edCorrectnessWitness]: Location invariant before [L139-L139] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-08-13 20:25:49,848 INFO L97 edCorrectnessWitness]: Location invariant before [L140-L140] ((! multithreaded || n_1 <= 2147483646) && (! multithreaded || (((((((((((((((((((((((((((2147483649LL + (long long )n_1) + (long long )s_2 >= 0LL && (2147483649LL + (long long )n_1) + (long long )s_6 >= 0LL) && (2147483649LL + (long long )i_3) + (long long )n_1 >= 0LL) && (2147483649LL + (long long )i_7) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_3) + (long long )n_1 >= 0LL) && (2147483648LL - (long long )i_7) + (long long )n_1 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_2 >= 0LL) && (3221225470LL - (long long )n_1) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )s_6 >= 0LL) && (4294967295LL - (long long )i_3) + (long long )i_7 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_2 >= 0LL) && (4294967295LL - (long long )i_7) + (long long )s_6 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_2 >= 0LL) && (2147483648LL + (long long )n_1) - (long long )s_6 >= 0LL) && (3221225470LL + (long long )i_3) - (long long )n_1 >= 0LL) && (3221225470LL + (long long )i_7) - (long long )n_1 >= 0LL) && (4294967295LL + (long long )i_3) - (long long )i_7 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_2 >= 0LL) && (3221225469LL - (long long )n_1) - (long long )s_6 >= 0LL) && (3221225469LL - (long long )i_3) - (long long )n_1 >= 0LL) && (3221225469LL - (long long )i_7) - (long long )n_1 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )s_6 >= 0LL) && (4294967294LL - (long long )i_3) - (long long )i_7 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_2 >= 0LL) && (4294967294LL - (long long )i_7) - (long long )s_6 >= 0LL))) && (! multithreaded || n_1 <= 2147483646) [2024-08-13 20:25:49,848 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 20:25:49,848 INFO L106 edCorrectnessWitness]: ghost_update [L138-L138] multithreaded = 1; [2024-08-13 20:25:49,870 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 20:25:50,006 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 20:25:50,013 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-13 20:25:50,109 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 20:25:50,122 INFO L206 MainTranslator]: Completed translation [2024-08-13 20:25:50,122 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50 WrapperNode [2024-08-13 20:25:50,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 20:25:50,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 20:25:50,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 20:25:50,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 20:25:50,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,168 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 258 [2024-08-13 20:25:50,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 20:25:50,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 20:25:50,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 20:25:50,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 20:25:50,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 20:25:50,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 20:25:50,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 20:25:50,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 20:25:50,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (1/1) ... [2024-08-13 20:25:50,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 20:25:50,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:50,236 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) [2024-08-13 20:25:50,238 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 [2024-08-13 20:25:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 20:25:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-13 20:25:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-13 20:25:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-13 20:25:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-13 20:25:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-13 20:25:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-13 20:25:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-13 20:25:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-13 20:25:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-08-13 20:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-08-13 20:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 20:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 20:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 20:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-13 20:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 20:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 20:25:50,268 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 20:25:50,362 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 20:25:50,363 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 20:25:50,708 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 20:25:50,708 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 20:25:50,958 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 20:25:50,960 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-13 20:25:50,960 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 08:25:50 BoogieIcfgContainer [2024-08-13 20:25:50,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 20:25:50,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 20:25:50,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 20:25:50,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 20:25:50,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 08:25:49" (1/4) ... [2024-08-13 20:25:50,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bfd13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 08:25:50, skipping insertion in model container [2024-08-13 20:25:50,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 08:25:49" (2/4) ... [2024-08-13 20:25:50,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bfd13f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 08:25:50, skipping insertion in model container [2024-08-13 20:25:50,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 08:25:50" (3/4) ... [2024-08-13 20:25:50,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bfd13f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 08:25:50, skipping insertion in model container [2024-08-13 20:25:50,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 08:25:50" (4/4) ... [2024-08-13 20:25:50,969 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-08-13 20:25:50,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 20:25:50,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-08-13 20:25:50,985 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 20:25:51,046 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-08-13 20:25:51,081 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 20:25:51,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 20:25:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:51,083 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) [2024-08-13 20:25:51,087 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 [2024-08-13 20:25:51,109 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 20:25:51,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-08-13 20:25:51,121 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3a2ef47b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 20:25:51,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-13 20:25:51,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:25:51,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:25:51,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1722462088, now seen corresponding path program 1 times [2024-08-13 20:25:51,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:25:51,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498744795] [2024-08-13 20:25:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:51,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:25:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:51,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:25:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498744795] [2024-08-13 20:25:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498744795] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 20:25:51,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 20:25:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 20:25:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445154235] [2024-08-13 20:25:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:25:52,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 20:25:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:25:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 20:25:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-13 20:25:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:52,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:25:52,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:25:52,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:52,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 20:25:52,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:25:52,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:25:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1450277460, now seen corresponding path program 1 times [2024-08-13 20:25:52,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:25:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496022599] [2024-08-13 20:25:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:25:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:52,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:25:52,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496022599] [2024-08-13 20:25:52,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496022599] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:25:52,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132586651] [2024-08-13 20:25:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:52,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:52,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:52,526 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) [2024-08-13 20:25:52,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-13 20:25:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:52,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2024-08-13 20:25:52,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:25:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:52,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:25:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:53,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132586651] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:25:53,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:25:53,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2024-08-13 20:25:53,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186176020] [2024-08-13 20:25:53,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:25:53,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-13 20:25:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:25:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-13 20:25:53,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-08-13 20:25:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:53,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:25:53,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:25:53,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:53,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:54,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-13 20:25:54,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-08-13 20:25:54,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:25:54,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:25:54,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1278910575, now seen corresponding path program 1 times [2024-08-13 20:25:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:25:54,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312245158] [2024-08-13 20:25:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:54,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:25:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:25:54,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312245158] [2024-08-13 20:25:54,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312245158] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:25:54,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188942009] [2024-08-13 20:25:54,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:54,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:54,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:54,754 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) [2024-08-13 20:25:54,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-13 20:25:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:54,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-13 20:25:54,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:25:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:54,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:25:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:54,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188942009] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-13 20:25:54,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-13 20:25:54,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-08-13 20:25:54,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279865648] [2024-08-13 20:25:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:25:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 20:25:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:25:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 20:25:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-08-13 20:25:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:54,992 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:25:54,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:25:54,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:54,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:54,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:55,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-13 20:25:55,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:55,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:25:55,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:25:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1003007159, now seen corresponding path program 1 times [2024-08-13 20:25:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:25:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113752206] [2024-08-13 20:25:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:55,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:25:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:55,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:25:55,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113752206] [2024-08-13 20:25:55,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113752206] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:25:55,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704803847] [2024-08-13 20:25:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:55,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:55,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:55,710 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) [2024-08-13 20:25:55,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-13 20:25:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:55,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjunts are in the unsatisfiable core [2024-08-13 20:25:55,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:25:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:55,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:25:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:58,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704803847] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:25:58,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:25:58,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 19 [2024-08-13 20:25:58,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564988453] [2024-08-13 20:25:58,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:25:58,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-08-13 20:25:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:25:58,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-08-13 20:25:58,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-08-13 20:25:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:58,010 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:25:58,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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) [2024-08-13 20:25:58,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:58,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:58,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:58,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:25:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:25:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:25:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:25:59,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-13 20:25:59,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:59,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:25:59,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:25:59,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1224323853, now seen corresponding path program 1 times [2024-08-13 20:25:59,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:25:59,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61873919] [2024-08-13 20:25:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:59,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:25:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:25:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:25:59,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:25:59,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61873919] [2024-08-13 20:25:59,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61873919] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:25:59,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555188327] [2024-08-13 20:25:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:25:59,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:25:59,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:25:59,975 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) [2024-08-13 20:25:59,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-13 20:26:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:00,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjunts are in the unsatisfiable core [2024-08-13 20:26:00,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:00,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:01,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555188327] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:01,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:01,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2024-08-13 20:26:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32606770] [2024-08-13 20:26:01,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:01,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-08-13 20:26:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-08-13 20:26:01,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2024-08-13 20:26:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:01,575 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:01,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 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) [2024-08-13 20:26:01,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:01,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:01,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:01,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:01,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:05,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-13 20:26:05,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:05,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:05,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:05,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1666371844, now seen corresponding path program 1 times [2024-08-13 20:26:05,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:05,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233382155] [2024-08-13 20:26:05,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:05,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:05,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:05,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233382155] [2024-08-13 20:26:05,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233382155] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:05,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282730501] [2024-08-13 20:26:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:05,429 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) [2024-08-13 20:26:05,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-13 20:26:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:05,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-13 20:26:05,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:05,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282730501] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-13 20:26:05,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2024-08-13 20:26:05,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850776688] [2024-08-13 20:26:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:26:05,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-13 20:26:05,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-13 20:26:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-08-13 20:26:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:05,723 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:05,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:05,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:06,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-13 20:26:06,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:06,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:06,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash -918934975, now seen corresponding path program 1 times [2024-08-13 20:26:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152448230] [2024-08-13 20:26:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:06,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:07,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152448230] [2024-08-13 20:26:07,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152448230] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812253166] [2024-08-13 20:26:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:07,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:07,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:07,300 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) [2024-08-13 20:26:07,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-13 20:26:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:07,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 30 conjunts are in the unsatisfiable core [2024-08-13 20:26:07,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:07,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812253166] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:09,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 26 [2024-08-13 20:26:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403976667] [2024-08-13 20:26:09,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-13 20:26:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-13 20:26:09,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-08-13 20:26:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:09,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:09,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2024-08-13 20:26:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:09,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:09,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:09,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:09,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:09,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:09,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-13 20:26:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-13 20:26:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-13 20:26:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-08-13 20:26:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-08-13 20:26:21,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-13 20:26:21,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-08-13 20:26:21,286 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-08-13 20:26:21,287 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (1/2) [2024-08-13 20:26:21,289 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 20:26:21,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 20:26:21,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:21,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 20:26:21,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-08-13 20:26:21,301 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 20:26:21,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 20:26:21,302 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3a2ef47b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 20:26:21,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-13 20:26:21,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:21,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1892978476, now seen corresponding path program 1 times [2024-08-13 20:26:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:21,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169373605] [2024-08-13 20:26:21,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:21,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:21,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169373605] [2024-08-13 20:26:21,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169373605] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 20:26:21,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 20:26:21,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-13 20:26:21,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437357126] [2024-08-13 20:26:21,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:26:21,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 20:26:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 20:26:21,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-13 20:26:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:21,664 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:21,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:26:21,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:21,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-13 20:26:21,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:21,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2138980576, now seen corresponding path program 1 times [2024-08-13 20:26:21,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:21,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620511584] [2024-08-13 20:26:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:22,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:22,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:22,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620511584] [2024-08-13 20:26:22,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620511584] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:22,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991003181] [2024-08-13 20:26:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:22,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:22,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:22,196 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) [2024-08-13 20:26:22,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-13 20:26:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:22,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjunts are in the unsatisfiable core [2024-08-13 20:26:22,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:22,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:22,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:22,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991003181] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:22,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:22,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-08-13 20:26:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331124504] [2024-08-13 20:26:22,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:22,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-13 20:26:22,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-13 20:26:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-08-13 20:26:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:22,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:22,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 20:26:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:23,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:23,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:23,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:23,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1978092795, now seen corresponding path program 1 times [2024-08-13 20:26:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:23,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767633715] [2024-08-13 20:26:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:23,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:23,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:23,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767633715] [2024-08-13 20:26:23,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767633715] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:23,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353567235] [2024-08-13 20:26:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:23,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:23,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:23,873 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) [2024-08-13 20:26:23,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-13 20:26:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:23,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-13 20:26:23,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:24,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353567235] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:24,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-13 20:26:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-08-13 20:26:24,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367155646] [2024-08-13 20:26:24,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:26:24,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 20:26:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:24,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 20:26:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-08-13 20:26:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:24,073 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:24,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-08-13 20:26:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:24,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:24,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:24,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-13 20:26:24,341 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:24,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash 314242133, now seen corresponding path program 1 times [2024-08-13 20:26:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691856829] [2024-08-13 20:26:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:24,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691856829] [2024-08-13 20:26:24,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691856829] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835985611] [2024-08-13 20:26:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:24,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:24,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:24,802 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) [2024-08-13 20:26:24,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-13 20:26:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:24,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-13 20:26:24,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:25,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:25,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:26,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835985611] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:26,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:26,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 18 [2024-08-13 20:26:26,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512716802] [2024-08-13 20:26:26,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:26,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-08-13 20:26:26,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:26,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-08-13 20:26:26,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-08-13 20:26:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:26,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:26,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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) [2024-08-13 20:26:26,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:26,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:26,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:26,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:28,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:28,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:28,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:28,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash -890620575, now seen corresponding path program 1 times [2024-08-13 20:26:28,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:28,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211171243] [2024-08-13 20:26:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:28,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:28,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:28,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211171243] [2024-08-13 20:26:28,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211171243] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115554653] [2024-08-13 20:26:28,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:28,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:28,652 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) [2024-08-13 20:26:28,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-13 20:26:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:28,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjunts are in the unsatisfiable core [2024-08-13 20:26:28,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:28,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:30,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115554653] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:30,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:30,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 23 [2024-08-13 20:26:30,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053995350] [2024-08-13 20:26:30,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:30,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-13 20:26:30,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-13 20:26:30,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-08-13 20:26:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:30,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:30,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 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) [2024-08-13 20:26:30,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:30,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:30,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:30,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:30,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:33,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:33,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-08-13 20:26:33,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:33,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1102322375, now seen corresponding path program 1 times [2024-08-13 20:26:33,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:33,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604677291] [2024-08-13 20:26:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:33,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:33,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:33,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604677291] [2024-08-13 20:26:33,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604677291] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:33,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729094300] [2024-08-13 20:26:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:33,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:33,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:33,518 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) [2024-08-13 20:26:33,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-13 20:26:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:33,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-13 20:26:33,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:33,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:33,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729094300] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:33,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-13 20:26:33,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2024-08-13 20:26:33,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846427601] [2024-08-13 20:26:33,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 20:26:33,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-13 20:26:33,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:33,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-13 20:26:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-08-13 20:26:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:33,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:33,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:33,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:34,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-13 20:26:34,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-08-13 20:26:34,316 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 20:26:34,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 20:26:34,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1329716927, now seen corresponding path program 1 times [2024-08-13 20:26:34,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 20:26:34,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598679168] [2024-08-13 20:26:34,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:34,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 20:26:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:34,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 20:26:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598679168] [2024-08-13 20:26:34,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598679168] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 20:26:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300576134] [2024-08-13 20:26:34,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 20:26:34,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 20:26:34,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 20:26:35,000 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) [2024-08-13 20:26:35,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-13 20:26:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 20:26:35,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-13 20:26:35,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 20:26:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:35,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 20:26:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 20:26:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300576134] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 20:26:37,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 20:26:37,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 27 [2024-08-13 20:26:37,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203827716] [2024-08-13 20:26:37,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 20:26:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-08-13 20:26:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 20:26:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-08-13 20:26:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2024-08-13 20:26:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:37,426 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 20:26:37,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 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) [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:37,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 20:26:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 20:26:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-13 20:26:48,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-13 20:26:48,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-13 20:26:48,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-08-13 20:26:48,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-08-13 20:26:48,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:48,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-13 20:26:48,486 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-08-13 20:26:48,486 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (2/2) [2024-08-13 20:26:48,487 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-13 20:26:48,487 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-13 20:26:48,489 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-08-13 20:26:48,489 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-08-13 20:26:48,490 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 08:26:48 BasicIcfg [2024-08-13 20:26:48,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-13 20:26:48,490 INFO L158 Benchmark]: Toolchain (without parser) took 58676.25ms. Allocated memory was 182.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 147.9MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-08-13 20:26:48,490 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 20:26:48,491 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 20:26:48,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.93ms. Allocated memory is still 182.5MB. Free memory was 146.8MB in the beginning and 128.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-08-13 20:26:48,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.49ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 125.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 20:26:48,491 INFO L158 Benchmark]: Boogie Preprocessor took 35.29ms. Allocated memory is still 182.5MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 20:26:48,491 INFO L158 Benchmark]: RCFGBuilder took 754.95ms. Allocated memory is still 182.5MB. Free memory was 123.8MB in the beginning and 132.8MB in the end (delta: -9.0MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-08-13 20:26:48,492 INFO L158 Benchmark]: TraceAbstraction took 57528.42ms. Allocated memory was 182.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 132.8MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-08-13 20:26:48,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.93ms. Allocated memory is still 182.5MB. Free memory was 146.8MB in the beginning and 128.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.49ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 125.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.29ms. Allocated memory is still 182.5MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 754.95ms. Allocated memory is still 182.5MB. Free memory was 123.8MB in the beginning and 132.8MB in the end (delta: -9.0MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * TraceAbstraction took 57528.42ms. Allocated memory was 182.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 132.8MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1080422, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 87277, dependent conditional: 87207, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1000633, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 7488, dependent conditional: 7418, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1000633, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 7488, dependent conditional: 7418, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 44133, dependent unconditional: 156864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 35416, dependent unconditional: 165581, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 35416, dependent unconditional: 165581, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3301, independent: 2924, independent conditional: 296, independent unconditional: 2628, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3301, independent: 2613, independent conditional: 0, independent unconditional: 2613, dependent: 688, dependent conditional: 0, dependent unconditional: 688, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 688, independent: 311, independent conditional: 296, independent unconditional: 15, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 688, independent: 311, independent conditional: 296, independent unconditional: 15, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2926, independent: 1588, independent conditional: 1513, independent unconditional: 76, dependent: 1338, dependent conditional: 1036, dependent unconditional: 302, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1194142, independent: 990221, independent conditional: 149080, independent unconditional: 841141, dependent: 200620, dependent conditional: 35129, dependent unconditional: 165491, unknown: 3301, unknown conditional: 583, unknown unconditional: 2718] , Statistics on independence cache: Total cache size (in pairs): 3301, Positive cache size: 2924, Positive conditional cache size: 296, Positive unconditional cache size: 2628, Negative cache size: 377, Negative conditional cache size: 287, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8717, Maximal queried relation: 6, Independence queries for same thread: 79789 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 4835, Number of trivial persistent sets: 3825, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3062, independent: 2992, independent conditional: 0, independent unconditional: 2992, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1080422, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 87277, dependent conditional: 87207, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1000633, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 7488, dependent conditional: 7418, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1000633, independent: 993145, independent conditional: 990153, independent unconditional: 2992, dependent: 7488, dependent conditional: 7418, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 44133, dependent unconditional: 156864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 35416, dependent unconditional: 165581, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1194142, independent: 993145, independent conditional: 149376, independent unconditional: 843769, dependent: 200997, dependent conditional: 35416, dependent unconditional: 165581, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3301, independent: 2924, independent conditional: 296, independent unconditional: 2628, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3301, independent: 2613, independent conditional: 0, independent unconditional: 2613, dependent: 688, dependent conditional: 0, dependent unconditional: 688, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 688, independent: 311, independent conditional: 296, independent unconditional: 15, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 688, independent: 311, independent conditional: 296, independent unconditional: 15, dependent: 377, dependent conditional: 287, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2926, independent: 1588, independent conditional: 1513, independent unconditional: 76, dependent: 1338, dependent conditional: 1036, dependent unconditional: 302, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1194142, independent: 990221, independent conditional: 149080, independent unconditional: 841141, dependent: 200620, dependent conditional: 35129, dependent unconditional: 165491, unknown: 3301, unknown conditional: 583, unknown unconditional: 2718] , Statistics on independence cache: Total cache size (in pairs): 3301, Positive cache size: 2924, Positive conditional cache size: 296, Positive unconditional cache size: 2628, Negative cache size: 377, Negative conditional cache size: 287, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8717, Maximal queried relation: 6, Independence queries for same thread: 79789 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 843984, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 69054, dependent conditional: 68984, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 780344, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 5414, dependent conditional: 5344, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 780344, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 5414, dependent conditional: 5344, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 28565, dependent unconditional: 124864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 22438, dependent unconditional: 130991, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 22438, dependent unconditional: 130991, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3376, independent: 3029, independent conditional: 272, independent unconditional: 2757, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3376, independent: 2743, independent conditional: 0, independent unconditional: 2743, dependent: 633, dependent conditional: 0, dependent unconditional: 633, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 633, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 633, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2573, independent: 1389, independent conditional: 1336, independent unconditional: 52, dependent: 1184, dependent conditional: 853, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 928359, independent: 771901, independent conditional: 119178, independent unconditional: 652723, dependent: 153082, dependent conditional: 22181, dependent unconditional: 130901, unknown: 3376, unknown conditional: 529, unknown unconditional: 2847] , Statistics on independence cache: Total cache size (in pairs): 3376, Positive cache size: 3029, Positive conditional cache size: 272, Positive unconditional cache size: 2757, Negative cache size: 347, Negative conditional cache size: 257, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6127, Maximal queried relation: 6, Independence queries for same thread: 63640 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.5s, Number of persistent set computation: 3993, Number of trivial persistent sets: 3144, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3203, independent: 3133, independent conditional: 0, independent unconditional: 3133, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 843984, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 69054, dependent conditional: 68984, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 780344, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 5414, dependent conditional: 5344, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 780344, independent: 774930, independent conditional: 771797, independent unconditional: 3133, dependent: 5414, dependent conditional: 5344, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 28565, dependent unconditional: 124864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 22438, dependent unconditional: 130991, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 928359, independent: 774930, independent conditional: 119450, independent unconditional: 655480, dependent: 153429, dependent conditional: 22438, dependent unconditional: 130991, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3376, independent: 3029, independent conditional: 272, independent unconditional: 2757, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3376, independent: 2743, independent conditional: 0, independent unconditional: 2743, dependent: 633, dependent conditional: 0, dependent unconditional: 633, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 633, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 633, independent: 286, independent conditional: 272, independent unconditional: 14, dependent: 347, dependent conditional: 257, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2573, independent: 1389, independent conditional: 1336, independent unconditional: 52, dependent: 1184, dependent conditional: 853, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 928359, independent: 771901, independent conditional: 119178, independent unconditional: 652723, dependent: 153082, dependent conditional: 22181, dependent unconditional: 130901, unknown: 3376, unknown conditional: 529, unknown unconditional: 2847] , Statistics on independence cache: Total cache size (in pairs): 3376, Positive cache size: 3029, Positive conditional cache size: 272, Positive unconditional cache size: 2757, Negative cache size: 347, Negative conditional cache size: 257, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6127, Maximal queried relation: 6, Independence queries for same thread: 63640 - PositiveResult [Line: 92]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 93]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 139]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 140]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork1 with 1 thread instances CFG has 9 procedures, 101 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 30.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 17.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 13314 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1217 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 101 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 27.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 16.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 537 ConstructedInterpolants, 0 QuantifiedInterpolants, 13216 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1241 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 23/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-13 20:26:48,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Ended with exit code 0 [2024-08-13 20:26:48,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-08-13 20:26:48,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE