./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-min-max-inc-dec.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-min-max-inc-dec.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 09:03:43,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 09:03:43,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 09:03:43,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 09:03:43,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 09:03:43,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 09:03:43,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 09:03:43,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 09:03:43,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 09:03:43,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 09:03:43,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 09:03:43,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 09:03:43,253 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 09:03:43,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 09:03:43,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 09:03:43,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 09:03:43,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 09:03:43,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 09:03:43,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 09:03:43,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 09:03:43,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 09:03:43,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 09:03:43,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 09:03:43,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 09:03:43,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 09:03:43,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 09:03:43,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 09:03:43,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 09:03:43,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 09:03:43,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 09:03:43,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:03:43,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 09:03:43,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 09:03:43,259 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 09:03:43,259 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 09:03:43,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 09:03:43,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 09:03:43,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 09:03:43,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 09:03:43,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 09:03:43,469 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 09:03:43,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 09:03:44,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 09:03:44,836 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 09:03:44,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 09:03:44,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/618cf165b/c77d03d4636b419bb9ac76e5fba11d7c/FLAGfddcb592c [2024-09-08 09:03:44,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/618cf165b/c77d03d4636b419bb9ac76e5fba11d7c [2024-09-08 09:03:44,862 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 09:03:44,863 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 09:03:44,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-min-max-inc-dec.wvr.yml/witness.yml [2024-09-08 09:03:44,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 09:03:44,933 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 09:03:44,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 09:03:44,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 09:03:44,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 09:03:44,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:03:44" (1/2) ... [2024-09-08 09:03:44,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0e9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:03:44, skipping insertion in model container [2024-09-08 09:03:44,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:03:44" (1/2) ... [2024-09-08 09:03:44,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d6ee83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:03:44, skipping insertion in model container [2024-09-08 09:03:44,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:03:44" (2/2) ... [2024-09-08 09:03:44,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0e9b6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:44, skipping insertion in model container [2024-09-08 09:03:44,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:03:44" (2/2) ... [2024-09-08 09:03:44,961 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 09:03:44,962 INFO L1541 ArrayList]: Location invariant before [L127-L127] ((! multithreaded || 1 <= N) && (! multithreaded || ((((((((((((-1LL + (long long )N) + (long long )v_assert >= 0LL && (-1LL + (long long )N) + (long long )b1 >= 0LL) && (-1LL + (long long )N) + (long long )b2 >= 0LL) && (1073741823LL - (long long )N) + (long long )v_assert >= 0LL) && (1073741823LL - (long long )N) + (long long )b1 >= 0LL) && (1073741823LL - (long long )N) + (long long )b2 >= 0LL) && (1073741824LL - (long long )N) - (long long )v_assert >= 0LL) && (1073741824LL - (long long )N) - (long long )b1 >= 0LL) && (1073741824LL - (long long )N) - (long long )b2 >= 0LL) && (long long )N - (long long )v_assert >= 0LL) && (long long )N - (long long )b1 >= 0LL) && (long long )N - (long long )b2 >= 0LL))) && (! multithreaded || 1 <= N) [2024-09-08 09:03:44,962 INFO L1541 ArrayList]: Location invariant before [L126-L126] ((! multithreaded || 1 <= N) && (! multithreaded || ((((((((((((-1LL + (long long )N) + (long long )v_assert >= 0LL && (-1LL + (long long )N) + (long long )b1 >= 0LL) && (-1LL + (long long )N) + (long long )b2 >= 0LL) && (1073741823LL - (long long )N) + (long long )v_assert >= 0LL) && (1073741823LL - (long long )N) + (long long )b1 >= 0LL) && (1073741823LL - (long long )N) + (long long )b2 >= 0LL) && (1073741824LL - (long long )N) - (long long )v_assert >= 0LL) && (1073741824LL - (long long )N) - (long long )b1 >= 0LL) && (1073741824LL - (long long )N) - (long long )b2 >= 0LL) && (long long )N - (long long )v_assert >= 0LL) && (long long )N - (long long )b1 >= 0LL) && (long long )N - (long long )b2 >= 0LL))) && (! multithreaded || 1 <= N) [2024-09-08 09:03:44,963 INFO L1541 ArrayList]: Location invariant before [L124-L124] ((! multithreaded || 1 <= N) && (! multithreaded || ((((((((((((-1LL + (long long )N) + (long long )v_assert >= 0LL && (-1LL + (long long )N) + (long long )b1 >= 0LL) && (-1LL + (long long )N) + (long long )b2 >= 0LL) && (1073741823LL - (long long )N) + (long long )v_assert >= 0LL) && (1073741823LL - (long long )N) + (long long )b1 >= 0LL) && (1073741823LL - (long long )N) + (long long )b2 >= 0LL) && (1073741824LL - (long long )N) - (long long )v_assert >= 0LL) && (1073741824LL - (long long )N) - (long long )b1 >= 0LL) && (1073741824LL - (long long )N) - (long long )b2 >= 0LL) && (long long )N - (long long )v_assert >= 0LL) && (long long )N - (long long )b1 >= 0LL) && (long long )N - (long long )b2 >= 0LL))) && (! multithreaded || 1 <= N) [2024-09-08 09:03:44,963 INFO L1541 ArrayList]: Location invariant before [L125-L125] ((! multithreaded || 1 <= N) && (! multithreaded || ((((((((((((-1LL + (long long )N) + (long long )v_assert >= 0LL && (-1LL + (long long )N) + (long long )b1 >= 0LL) && (-1LL + (long long )N) + (long long )b2 >= 0LL) && (1073741823LL - (long long )N) + (long long )v_assert >= 0LL) && (1073741823LL - (long long )N) + (long long )b1 >= 0LL) && (1073741823LL - (long long )N) + (long long )b2 >= 0LL) && (1073741824LL - (long long )N) - (long long )v_assert >= 0LL) && (1073741824LL - (long long )N) - (long long )b1 >= 0LL) && (1073741824LL - (long long )N) - (long long )b2 >= 0LL) && (long long )N - (long long )v_assert >= 0LL) && (long long )N - (long long )b1 >= 0LL) && (long long )N - (long long )b2 >= 0LL))) && (! multithreaded || 1 <= N) [2024-09-08 09:03:44,963 INFO L1541 ArrayList]: Location invariant before [L123-L123] ((! multithreaded || 1 <= N) && (! multithreaded || ((((((((((((-1LL + (long long )N) + (long long )v_assert >= 0LL && (-1LL + (long long )N) + (long long )b1 >= 0LL) && (-1LL + (long long )N) + (long long )b2 >= 0LL) && (1073741823LL - (long long )N) + (long long )v_assert >= 0LL) && (1073741823LL - (long long )N) + (long long )b1 >= 0LL) && (1073741823LL - (long long )N) + (long long )b2 >= 0LL) && (1073741824LL - (long long )N) - (long long )v_assert >= 0LL) && (1073741824LL - (long long )N) - (long long )b1 >= 0LL) && (1073741824LL - (long long )N) - (long long )b2 >= 0LL) && (long long )N - (long long )v_assert >= 0LL) && (long long )N - (long long )b1 >= 0LL) && (long long )N - (long long )b2 >= 0LL))) && (! multithreaded || 1 <= N) [2024-09-08 09:03:44,963 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 09:03:44,963 INFO L1541 ArrayList]: ghost_update [L122-L122] multithreaded = 1; [2024-09-08 09:03:44,984 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 09:03:45,155 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 09:03:45,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:03:45,170 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 09:03:45,229 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 09:03:45,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:03:45,256 INFO L204 MainTranslator]: Completed translation [2024-09-08 09:03:45,257 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45 WrapperNode [2024-09-08 09:03:45,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 09:03:45,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 09:03:45,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 09:03:45,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 09:03:45,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,340 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 163 [2024-09-08 09:03:45,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 09:03:45,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 09:03:45,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 09:03:45,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 09:03:45,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 09:03:45,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 09:03:45,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 09:03:45,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 09:03:45,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (1/1) ... [2024-09-08 09:03:45,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:03:45,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:45,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 09:03:45,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 09:03:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 09:03:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 09:03:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 09:03:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 09:03:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-08 09:03:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-08 09:03:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 09:03:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-08 09:03:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-08 09:03:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 09:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 09:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 09:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 09:03:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 09:03:45,454 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 09:03:45,545 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 09:03:45,547 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 09:03:45,850 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 09:03:45,851 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 09:03:46,028 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 09:03:46,029 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-08 09:03:46,029 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:03:46 BoogieIcfgContainer [2024-09-08 09:03:46,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 09:03:46,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 09:03:46,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 09:03:46,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 09:03:46,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:03:44" (1/4) ... [2024-09-08 09:03:46,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321645b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:03:46, skipping insertion in model container [2024-09-08 09:03:46,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:03:44" (2/4) ... [2024-09-08 09:03:46,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321645b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 09:03:46, skipping insertion in model container [2024-09-08 09:03:46,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:03:45" (3/4) ... [2024-09-08 09:03:46,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321645b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 09:03:46, skipping insertion in model container [2024-09-08 09:03:46,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:03:46" (4/4) ... [2024-09-08 09:03:46,038 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-09-08 09:03:46,051 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 09:03:46,051 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-08 09:03:46,051 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 09:03:46,108 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-09-08 09:03:46,142 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:03:46,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 09:03:46,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:46,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 09:03:46,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 09:03:46,175 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 09:03:46,184 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 09:03:46,190 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a0dc25f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:03:46,190 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-09-08 09:03:46,309 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:03:46,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:03:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2033473219, now seen corresponding path program 1 times [2024-09-08 09:03:46,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:03:46,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877482747] [2024-09-08 09:03:46,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:03:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:46,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:03:46,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877482747] [2024-09-08 09:03:46,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877482747] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:03:46,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:03:46,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 09:03:46,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486297305] [2024-09-08 09:03:46,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:03:46,619 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 09:03:46,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:03:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 09:03:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 09:03:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:46,639 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:03:46,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2024-09-08 09:03:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:46,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:46,664 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 09:03:46,665 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:03:46,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:03:46,666 INFO L85 PathProgramCache]: Analyzing trace with hash 730726396, now seen corresponding path program 1 times [2024-09-08 09:03:46,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:03:46,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146798972] [2024-09-08 09:03:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:03:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:47,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:03:47,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146798972] [2024-09-08 09:03:47,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146798972] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:03:47,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571813336] [2024-09-08 09:03:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:47,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:47,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:47,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:03:47,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 09:03:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:47,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-08 09:03:47,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:03:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:47,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:03:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:47,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571813336] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:03:47,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:03:47,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-08 09:03:47,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070672604] [2024-09-08 09:03:47,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:03:47,573 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 09:03:47,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:03:47,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 09:03:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-08 09:03:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:47,575 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:03:47,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:03:47,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:47,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:48,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:48,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:48,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 09:03:48,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-08 09:03:48,342 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:03:48,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:03:48,342 INFO L85 PathProgramCache]: Analyzing trace with hash 83049093, now seen corresponding path program 1 times [2024-09-08 09:03:48,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:03:48,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094867104] [2024-09-08 09:03:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:48,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:03:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 84 proven. 267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:03:49,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094867104] [2024-09-08 09:03:49,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094867104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:03:49,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103133801] [2024-09-08 09:03:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:49,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:49,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:03:49,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 09:03:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:50,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 09:03:50,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:03:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-09-08 09:03:50,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:03:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-09-08 09:03:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103133801] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:03:50,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:03:50,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 8, 8] total 50 [2024-09-08 09:03:50,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953638140] [2024-09-08 09:03:50,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:03:50,560 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-08 09:03:50,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:03:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-08 09:03:50,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=2266, Unknown=0, NotChecked=0, Total=2550 [2024-09-08 09:03:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:50,567 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:03:50,568 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 50 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:03:50,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:50,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:50,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:51,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 09:03:51,219 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:51,219 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:03:51,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:03:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1714773692, now seen corresponding path program 2 times [2024-09-08 09:03:51,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:03:51,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810942918] [2024-09-08 09:03:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:51,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:03:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 210 proven. 63 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-08 09:03:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:03:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810942918] [2024-09-08 09:03:51,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810942918] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:03:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953063636] [2024-09-08 09:03:51,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:03:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:51,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:03:51,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 09:03:51,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 09:03:51,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:03:51,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 09:03:51,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:03:51,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-09-08 09:03:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-09-08 09:03:51,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 09:03:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953063636] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:03:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 09:03:51,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-09-08 09:03:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753631235] [2024-09-08 09:03:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:03:51,890 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 09:03:51,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:03:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 09:03:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-09-08 09:03:51,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:51,891 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:03:51,891 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:03:51,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:51,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:51,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:51,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:56,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:56,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:56,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:03:56,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 09:03:56,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:56,770 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:03:56,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:03:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash 495236063, now seen corresponding path program 3 times [2024-09-08 09:03:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:03:56,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375539455] [2024-09-08 09:03:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:03:56,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:03:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:03:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 124 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:03:58,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:03:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375539455] [2024-09-08 09:03:58,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375539455] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:03:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059695505] [2024-09-08 09:03:58,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 09:03:58,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:03:58,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:03:58,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:03:58,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 09:03:58,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-09-08 09:03:58,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:03:58,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 09:03:58,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:03:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-08 09:03:58,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 09:03:58,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059695505] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:03:58,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 09:03:58,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [42] total 44 [2024-09-08 09:03:58,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259331741] [2024-09-08 09:03:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:03:58,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 09:03:58,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:03:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 09:03:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1729, Unknown=0, NotChecked=0, Total=1980 [2024-09-08 09:03:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:03:58,553 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:03:58,553 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:03:58,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:03:58,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:58,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:03:58,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:03:58,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:04:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:04:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:04:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:04:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:04:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:04:02,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 09:04:02,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:04:02,877 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-09-08 09:04:02,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:04:02,877 INFO L85 PathProgramCache]: Analyzing trace with hash 271726064, now seen corresponding path program 4 times [2024-09-08 09:04:02,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:04:02,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816777939] [2024-09-08 09:04:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:04:02,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:04:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:04:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 128 proven. 367 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:04:04,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:04:04,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816777939] [2024-09-08 09:04:04,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816777939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:04:04,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213719232] [2024-09-08 09:04:04,214 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 09:04:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:04:04,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:04:04,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:04:04,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 09:04:04,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 09:04:04,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:04:04,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-08 09:04:04,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:04:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 221 proven. 219 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 09:04:04,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:04:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 310 proven. 44 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-09-08 09:04:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213719232] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:04:05,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:04:05,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 18, 7] total 67 [2024-09-08 09:04:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605434080] [2024-09-08 09:04:05,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:04:05,107 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-09-08 09:04:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:04:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-09-08 09:04:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=4019, Unknown=0, NotChecked=0, Total=4422 [2024-09-08 09:04:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:04:05,110 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:04:05,110 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.0) internal successors, (335), 67 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:04:05,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:04:05,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:04:05,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 09:04:05,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:04:05,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:04:05,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.