./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-prod-cons.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-prod-cons.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-prod-cons.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-prod-cons.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 09:20:02,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 09:20:02,815 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 09:20:02,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 09:20:02,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 09:20:02,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 09:20:02,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 09:20:02,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 09:20:02,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 09:20:02,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 09:20:02,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 09:20:02,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 09:20:02,857 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 09:20:02,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 09:20:02,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 09:20:02,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 09:20:02,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 09:20:02,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 09:20:02,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 09:20:02,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 09:20:02,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 09:20:02,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 09:20:02,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 09:20:02,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 09:20:02,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 09:20:02,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 09:20:02,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 09:20:02,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 09:20:02,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 09:20:02,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 09:20:02,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:20:02,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 09:20:02,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 09:20:02,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 09:20:02,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 09:20:02,867 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 09:20:02,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 09:20:02,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 09:20:02,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 09:20:02,869 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 09:20:02,869 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 09:20:02,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 09:20:03,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 09:20:03,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 09:20:03,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 09:20:03,145 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 09:20:03,146 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 09:20:03,148 INFO L431 ainManager$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-prod-cons.wvr.yml/witness.yml [2024-09-08 09:20:03,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 09:20:03,244 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 09:20:03,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2024-09-08 09:20:04,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 09:20:04,825 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 09:20:04,826 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2024-09-08 09:20:04,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1a24d02e/77bde8004c1b4216b7a30227388279b5/FLAG0041f62bf [2024-09-08 09:20:05,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1a24d02e/77bde8004c1b4216b7a30227388279b5 [2024-09-08 09:20:05,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 09:20:05,224 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 09:20:05,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 09:20:05,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 09:20:05,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 09:20:05,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:20:03" (1/2) ... [2024-09-08 09:20:05,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ab272d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:20:05, skipping insertion in model container [2024-09-08 09:20:05,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:20:03" (1/2) ... [2024-09-08 09:20:05,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59fa2c18 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:20:05, skipping insertion in model container [2024-09-08 09:20:05,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:20:05" (2/2) ... [2024-09-08 09:20:05,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ab272d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05, skipping insertion in model container [2024-09-08 09:20:05,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:20:05" (2/2) ... [2024-09-08 09:20:05,259 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 09:20:05,261 INFO L1541 ArrayList]: Location invariant before [L111-L111] ((! multithreaded || (((((((((((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL && (2147483648LL + (long long )back) + (long long )n >= 0LL) && (2147483648LL + (long long )W) + (long long )front >= 0LL) && (2147483648LL + (long long )W) + (long long )back >= 0LL) && (2147483647LL - (long long )front) + (long long )n >= 0LL) && (2147483647LL - (long long )back) + (long long )n >= 0LL) && (2147483647LL - (long long )W) + (long long )n >= 0LL) && (4294967295LL - (long long )back) + (long long )front >= 0LL) && (long long )W + (long long )n >= 0LL) && (1073741823LL + (long long )W) - (long long )n >= 0LL) && (2147483647LL + (long long )W) - (long long )front >= 0LL) && (2147483647LL + (long long )W) - (long long )back >= 0LL) && (3221225471LL + (long long )front) - (long long )n >= 0LL) && (3221225471LL + (long long )back) - (long long )n >= 0LL) && (4294967295LL + (long long )back) - (long long )front >= 0LL) && (3221225470LL - (long long )front) - (long long )n >= 0LL) && (3221225470LL - (long long )back) - (long long )n >= 0LL) && (3221225470LL - (long long )W) - (long long )n >= 0LL) && (4294967294LL - (long long )back) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )back >= 0LL)) && (! multithreaded || 0 <= W)) && (! multithreaded || 0 <= W) [2024-09-08 09:20:05,262 INFO L1541 ArrayList]: Location invariant before [L109-L109] ((! multithreaded || (((((((((((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL && (2147483648LL + (long long )back) + (long long )n >= 0LL) && (2147483648LL + (long long )W) + (long long )front >= 0LL) && (2147483648LL + (long long )W) + (long long )back >= 0LL) && (2147483647LL - (long long )front) + (long long )n >= 0LL) && (2147483647LL - (long long )back) + (long long )n >= 0LL) && (2147483647LL - (long long )W) + (long long )n >= 0LL) && (4294967295LL - (long long )back) + (long long )front >= 0LL) && (long long )W + (long long )n >= 0LL) && (1073741823LL + (long long )W) - (long long )n >= 0LL) && (2147483647LL + (long long )W) - (long long )front >= 0LL) && (2147483647LL + (long long )W) - (long long )back >= 0LL) && (3221225471LL + (long long )front) - (long long )n >= 0LL) && (3221225471LL + (long long )back) - (long long )n >= 0LL) && (4294967295LL + (long long )back) - (long long )front >= 0LL) && (3221225470LL - (long long )front) - (long long )n >= 0LL) && (3221225470LL - (long long )back) - (long long )n >= 0LL) && (3221225470LL - (long long )W) - (long long )n >= 0LL) && (4294967294LL - (long long )back) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )back >= 0LL)) && (! multithreaded || 0 <= W)) && (! multithreaded || 0 <= W) [2024-09-08 09:20:05,262 INFO L1541 ArrayList]: Location invariant before [L110-L110] ((! multithreaded || (((((((((((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL && (2147483648LL + (long long )back) + (long long )n >= 0LL) && (2147483648LL + (long long )W) + (long long )front >= 0LL) && (2147483648LL + (long long )W) + (long long )back >= 0LL) && (2147483647LL - (long long )front) + (long long )n >= 0LL) && (2147483647LL - (long long )back) + (long long )n >= 0LL) && (2147483647LL - (long long )W) + (long long )n >= 0LL) && (4294967295LL - (long long )back) + (long long )front >= 0LL) && (long long )W + (long long )n >= 0LL) && (1073741823LL + (long long )W) - (long long )n >= 0LL) && (2147483647LL + (long long )W) - (long long )front >= 0LL) && (2147483647LL + (long long )W) - (long long )back >= 0LL) && (3221225471LL + (long long )front) - (long long )n >= 0LL) && (3221225471LL + (long long )back) - (long long )n >= 0LL) && (4294967295LL + (long long )back) - (long long )front >= 0LL) && (3221225470LL - (long long )front) - (long long )n >= 0LL) && (3221225470LL - (long long )back) - (long long )n >= 0LL) && (3221225470LL - (long long )W) - (long long )n >= 0LL) && (4294967294LL - (long long )back) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )front >= 0LL) && (4294967294LL - (long long )W) - (long long )back >= 0LL)) && (! multithreaded || 0 <= W)) && (! multithreaded || 0 <= W) [2024-09-08 09:20:05,263 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 09:20:05,266 INFO L1541 ArrayList]: ghost_update [L108-L108] multithreaded = 1; [2024-09-08 09:20:05,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 09:20:05,493 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-prod-cons.wvr.c[3095,3108] [2024-09-08 09:20:05,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:20:05,517 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 09:20:05,603 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-prod-cons.wvr.c[3095,3108] [2024-09-08 09:20:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:20:05,632 INFO L204 MainTranslator]: Completed translation [2024-09-08 09:20:05,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05 WrapperNode [2024-09-08 09:20:05,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 09:20:05,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 09:20:05,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 09:20:05,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 09:20:05,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,705 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 165 [2024-09-08 09:20:05,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 09:20:05,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 09:20:05,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 09:20:05,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 09:20:05,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 09:20:05,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 09:20:05,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 09:20:05,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 09:20:05,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (1/1) ... [2024-09-08 09:20:05,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:20:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:05,784 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 09:20:05,787 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 09:20:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 09:20:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 09:20:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 09:20:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 09:20:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 09:20:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 09:20:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 09:20:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 09:20:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 09:20:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 09:20:05,841 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 09:20:05,950 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 09:20:05,953 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 09:20:06,342 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 09:20:06,342 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 09:20:06,595 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 09:20:06,599 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 09:20:06,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:20:06 BoogieIcfgContainer [2024-09-08 09:20:06,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 09:20:06,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 09:20:06,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 09:20:06,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 09:20:06,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:20:03" (1/4) ... [2024-09-08 09:20:06,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d2ad82 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 09:20:06, skipping insertion in model container [2024-09-08 09:20:06,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:20:05" (2/4) ... [2024-09-08 09:20:06,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d2ad82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:20:06, skipping insertion in model container [2024-09-08 09:20:06,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:20:05" (3/4) ... [2024-09-08 09:20:06,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d2ad82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:20:06, skipping insertion in model container [2024-09-08 09:20:06,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:20:06" (4/4) ... [2024-09-08 09:20:06,613 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2024-09-08 09:20:06,633 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 09:20:06,633 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-08 09:20:06,633 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 09:20:06,689 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 09:20:06,736 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:20:06,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 09:20:06,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:06,739 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 09:20:06,742 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 09:20:06,779 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 09:20:06,790 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 09:20:06,797 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;@43ee477d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:20:06,798 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-08 09:20:06,898 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:06,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1048757477, now seen corresponding path program 1 times [2024-09-08 09:20:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:06,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235666991] [2024-09-08 09:20:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:07,802 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 09:20:07,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:07,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235666991] [2024-09-08 09:20:07,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235666991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:20:07,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:20:07,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 09:20:07,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801961766] [2024-09-08 09:20:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:20:07,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 09:20:07,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 09:20:07,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 09:20:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:07,839 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:07,840 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 09:20:07,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:07,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:07,878 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 09:20:07,878 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:07,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1762182863, now seen corresponding path program 1 times [2024-09-08 09:20:07,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:07,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859509686] [2024-09-08 09:20:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:07,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:08,372 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 09:20:08,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859509686] [2024-09-08 09:20:08,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859509686] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156110365] [2024-09-08 09:20:08,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:08,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:08,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:08,395 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 09:20:08,397 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 09:20:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:08,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-08 09:20:08,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:08,660 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 09:20:08,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:09,648 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 09:20:09,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156110365] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:09,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:09,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-09-08 09:20:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509370702] [2024-09-08 09:20:09,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:09,651 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 09:20:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 09:20:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-08 09:20:09,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:09,653 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:09,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 09:20:09,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:09,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:09,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 09:20:10,087 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 09:20:10,088 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:10,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1326911643, now seen corresponding path program 2 times [2024-09-08 09:20:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246487893] [2024-09-08 09:20:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:10,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:10,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:10,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246487893] [2024-09-08 09:20:10,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246487893] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:10,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179347864] [2024-09-08 09:20:10,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:20:10,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:10,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:10,759 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 09:20:10,761 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 09:20:10,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 09:20:10,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:10,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-08 09:20:10,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 09:20:11,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 09:20:11,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179347864] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:20:11,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 09:20:11,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-09-08 09:20:11,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357461177] [2024-09-08 09:20:11,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:20:11,011 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 09:20:11,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:11,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 09:20:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-08 09:20:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:11,014 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:11,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 09:20:11,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:11,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:11,313 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 09:20:11,496 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 09:20:11,497 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:11,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:11,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1865501648, now seen corresponding path program 1 times [2024-09-08 09:20:11,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:11,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268538523] [2024-09-08 09:20:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:11,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 09:20:11,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:11,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268538523] [2024-09-08 09:20:11,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268538523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:20:11,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:20:11,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 09:20:11,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939488691] [2024-09-08 09:20:11,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:20:11,752 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 09:20:11,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 09:20:11,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 09:20:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:11,754 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:11,754 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:20:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:11,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:12,001 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 09:20:12,001 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:12,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1190715952, now seen corresponding path program 1 times [2024-09-08 09:20:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:12,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262912621] [2024-09-08 09:20:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:12,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:13,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:13,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262912621] [2024-09-08 09:20:13,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262912621] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:13,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385565255] [2024-09-08 09:20:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:13,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:13,331 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 09:20:13,333 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 09:20:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:13,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-08 09:20:13,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:14,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385565255] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:16,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2024-09-08 09:20:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623485465] [2024-09-08 09:20:16,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:16,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-08 09:20:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-08 09:20:16,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2024-09-08 09:20:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:16,913 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:16,913 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.8157894736842106) internal successors, (107), 38 states have internal predecessors, (107), 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 09:20:16,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:16,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:16,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:16,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:16,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:19,771 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 09:20:19,957 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:19,958 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:19,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:19,958 INFO L85 PathProgramCache]: Analyzing trace with hash 563074196, now seen corresponding path program 2 times [2024-09-08 09:20:19,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:19,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648407781] [2024-09-08 09:20:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:19,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:21,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648407781] [2024-09-08 09:20:21,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648407781] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558115932] [2024-09-08 09:20:21,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:20:21,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:21,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:21,545 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 09:20:21,547 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 09:20:21,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 09:20:21,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:21,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-08 09:20:21,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:22,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:25,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558115932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:25,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:25,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 48 [2024-09-08 09:20:25,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923459145] [2024-09-08 09:20:25,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:25,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-08 09:20:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:25,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-08 09:20:25,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2024-09-08 09:20:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:25,179 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:25,179 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.7755102040816326) internal successors, (136), 49 states have internal predecessors, (136), 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 09:20:25,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:25,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:25,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:25,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:25,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:25,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:29,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-08 09:20:29,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-08 09:20:29,319 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:29,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:29,319 INFO L85 PathProgramCache]: Analyzing trace with hash -666747088, now seen corresponding path program 3 times [2024-09-08 09:20:29,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:29,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54460222] [2024-09-08 09:20:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:29,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:31,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54460222] [2024-09-08 09:20:31,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54460222] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287792671] [2024-09-08 09:20:31,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 09:20:31,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:31,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:31,257 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 09:20:31,257 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 09:20:31,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 09:20:31,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:31,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-08 09:20:31,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-08 09:20:32,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 09:20:32,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287792671] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:20:32,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 09:20:32,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 27 [2024-09-08 09:20:32,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282852195] [2024-09-08 09:20:32,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:20:32,354 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-08 09:20:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:32,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-08 09:20:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2024-09-08 09:20:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:32,355 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:32,355 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 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) [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:32,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:32,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:32,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 09:20:33,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:33,090 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:33,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1674788972, now seen corresponding path program 1 times [2024-09-08 09:20:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270324377] [2024-09-08 09:20:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 09:20:33,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:33,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270324377] [2024-09-08 09:20:33,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270324377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:33,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983673765] [2024-09-08 09:20:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:33,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:33,330 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:20:33,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 09:20:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:33,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-08 09:20:33,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:20:33,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:34,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:20:34,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-09-08 09:20:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 09:20:34,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983673765] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:34,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:34,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 16, 12] total 29 [2024-09-08 09:20:34,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729240935] [2024-09-08 09:20:34,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:34,232 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-08 09:20:34,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-08 09:20:34,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=589, Unknown=0, NotChecked=0, Total=812 [2024-09-08 09:20:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:34,235 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:34,235 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 29 states have internal predecessors, (100), 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 09:20:34,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:34,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:34,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:34,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:34,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:34,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:34,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:34,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 09:20:34,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 09:20:35,170 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-08 09:20:35,171 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:35,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:35,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2079111122, now seen corresponding path program 1 times [2024-09-08 09:20:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:35,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230412998] [2024-09-08 09:20:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 09:20:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:35,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230412998] [2024-09-08 09:20:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230412998] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:20:35,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:20:35,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 09:20:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14088320] [2024-09-08 09:20:35,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:20:35,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 09:20:35,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:35,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 09:20:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 09:20:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:35,261 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:35,261 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 09:20:35,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:35,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-08 09:20:35,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:35,828 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-08 09:20:35,829 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:35,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash -617067281, now seen corresponding path program 2 times [2024-09-08 09:20:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218603376] [2024-09-08 09:20:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:37,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:37,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218603376] [2024-09-08 09:20:37,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218603376] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:37,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704372986] [2024-09-08 09:20:37,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:20:37,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:37,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:37,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:20:37,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 09:20:37,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 09:20:37,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:37,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-08 09:20:37,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 09:20:38,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:38,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:20:38,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-09-08 09:20:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 09:20:38,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704372986] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:38,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:38,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 10] total 41 [2024-09-08 09:20:38,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168525111] [2024-09-08 09:20:38,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:38,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-08 09:20:38,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:38,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-08 09:20:38,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1530, Unknown=0, NotChecked=0, Total=1722 [2024-09-08 09:20:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:38,661 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:38,661 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.5476190476190474) internal successors, (149), 41 states have internal predecessors, (149), 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 09:20:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:38,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:38,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 09:20:40,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 09:20:40,875 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:40,875 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:40,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:40,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1803193166, now seen corresponding path program 2 times [2024-09-08 09:20:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593943599] [2024-09-08 09:20:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:40,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:44,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:44,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593943599] [2024-09-08 09:20:44,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593943599] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:44,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198862601] [2024-09-08 09:20:44,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:20:44,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:44,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:44,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:20:44,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 09:20:44,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 09:20:44,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:44,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-08 09:20:44,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 57 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:20:45,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:45,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:20:45,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 53 [2024-09-08 09:20:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 09:20:45,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198862601] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:45,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:45,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 16] total 58 [2024-09-08 09:20:45,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492519292] [2024-09-08 09:20:45,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:45,876 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-09-08 09:20:45,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:45,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-09-08 09:20:45,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=3107, Unknown=0, NotChecked=0, Total=3422 [2024-09-08 09:20:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:45,879 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:45,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.0847457627118646) internal successors, (182), 58 states have internal predecessors, (182), 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 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:45,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:45,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:45,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:20:45,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:45,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 09:20:45,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:20:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-09-08 09:20:50,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-08 09:20:50,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:50,951 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:20:50,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:20:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash 745009053, now seen corresponding path program 3 times [2024-09-08 09:20:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:20:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532777665] [2024-09-08 09:20:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:20:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:20:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:20:54,236 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:20:54,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:20:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532777665] [2024-09-08 09:20:54,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532777665] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:20:54,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581655904] [2024-09-08 09:20:54,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 09:20:54,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:20:54,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:20:54,238 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:20:54,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 09:20:54,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-08 09:20:54,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:20:54,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-08 09:20:54,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:20:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 09:20:55,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:20:55,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:20:55,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 53 [2024-09-08 09:20:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-09-08 09:20:55,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581655904] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:20:55,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:20:55,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 15] total 52 [2024-09-08 09:20:55,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018658159] [2024-09-08 09:20:55,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:20:55,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-08 09:20:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:20:55,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-08 09:20:55,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2502, Unknown=0, NotChecked=0, Total=2756 [2024-09-08 09:20:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:20:55,783 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:20:55,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.2641509433962264) internal successors, (173), 52 states have internal predecessors, (173), 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 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2024-09-08 09:20:55,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:21:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:21:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-09-08 09:21:03,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-08 09:21:03,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-08 09:21:03,943 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:21:03,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:21:03,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1328016796, now seen corresponding path program 3 times [2024-09-08 09:21:03,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:21:03,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14338646] [2024-09-08 09:21:03,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:21:03,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:21:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:21:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 19 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:21:08,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:21:08,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14338646] [2024-09-08 09:21:08,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14338646] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:21:08,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474358688] [2024-09-08 09:21:08,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 09:21:08,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:21:08,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:21:08,826 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:21:08,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 09:21:09,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-08 09:21:09,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:21:09,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-09-08 09:21:09,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:21:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 130 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 09:21:10,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:21:12,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:21:12,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 179 [2024-09-08 09:21:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-08 09:21:12,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474358688] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:21:12,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:21:12,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 24] total 83 [2024-09-08 09:21:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007751159] [2024-09-08 09:21:12,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:21:12,484 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-09-08 09:21:12,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:21:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-09-08 09:21:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=649, Invalid=6323, Unknown=0, NotChecked=0, Total=6972 [2024-09-08 09:21:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:21:12,487 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:21:12,488 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.8095238095238093) internal successors, (236), 83 states have internal predecessors, (236), 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 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:21:12,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2024-09-08 09:21:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:21:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2024-09-08 09:21:25,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-08 09:21:25,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:21:25,322 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:21:25,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:21:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash 323830259, now seen corresponding path program 4 times [2024-09-08 09:21:25,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:21:25,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924530617] [2024-09-08 09:21:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:21:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:21:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:21:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 19 proven. 116 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:21:30,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:21:30,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924530617] [2024-09-08 09:21:30,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924530617] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:21:30,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344581611] [2024-09-08 09:21:30,902 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 09:21:30,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:21:30,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:21:30,905 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:21:30,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 09:21:31,010 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 09:21:31,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:21:31,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-09-08 09:21:31,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:21:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 1 proven. 132 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 09:21:32,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:21:34,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:21:34,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 179 [2024-09-08 09:21:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-08 09:21:34,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344581611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:21:34,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:21:34,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 24] total 83 [2024-09-08 09:21:34,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508863429] [2024-09-08 09:21:34,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:21:34,467 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-09-08 09:21:34,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:21:34,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-09-08 09:21:34,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=6402, Unknown=0, NotChecked=0, Total=6972 [2024-09-08 09:21:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:21:34,470 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:21:34,470 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.7738095238095237) internal successors, (233), 83 states have internal predecessors, (233), 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 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:21:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2024-09-08 09:21:34,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:21:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:21:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2024-09-08 09:21:57,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-08 09:21:57,308 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-08 09:21:57,309 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:21:57,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:21:57,309 INFO L85 PathProgramCache]: Analyzing trace with hash -815578532, now seen corresponding path program 4 times [2024-09-08 09:21:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:21:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846392389] [2024-09-08 09:21:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:21:57,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:21:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:22:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 130 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:22:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:22:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846392389] [2024-09-08 09:22:02,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846392389] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:22:02,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114310139] [2024-09-08 09:22:02,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 09:22:02,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:22:02,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:22:02,658 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:22:02,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 09:22:02,784 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 09:22:02,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:22:02,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-08 09:22:02,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:22:07,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:22:07,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 96 treesize of output 25 [2024-09-08 09:22:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 1 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:22:07,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:22:13,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:22:13,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 189 treesize of output 671 [2024-09-08 09:22:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 2 proven. 403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:22:15,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114310139] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:22:15,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:22:15,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 146 [2024-09-08 09:22:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220370457] [2024-09-08 09:22:15,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:22:15,433 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2024-09-08 09:22:15,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:22:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2024-09-08 09:22:15,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2838, Invalid=18624, Unknown=0, NotChecked=0, Total=21462 [2024-09-08 09:22:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:22:15,441 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:22:15,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 2.435374149659864) internal successors, (358), 146 states have internal predecessors, (358), 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 09:22:15,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:15,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:22:15,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 186 states. [2024-09-08 09:22:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:22:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:22:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-09-08 09:22:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-09-08 09:22:33,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-08 09:22:33,815 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-08 09:22:33,816 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:22:33,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:22:33,816 INFO L85 PathProgramCache]: Analyzing trace with hash -614328781, now seen corresponding path program 5 times [2024-09-08 09:22:33,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:22:33,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801345475] [2024-09-08 09:22:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:22:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:22:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:22:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 72 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:22:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:22:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801345475] [2024-09-08 09:22:43,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801345475] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:22:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518705272] [2024-09-08 09:22:43,619 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 09:22:43,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:22:43,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:22:43,620 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:22:43,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 09:22:43,870 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-09-08 09:22:43,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:22:43,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-09-08 09:22:43,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:22:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 09:22:47,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:22:53,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 09:22:53,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 189 treesize of output 671 [2024-09-08 09:22:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 341 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-08 09:22:54,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518705272] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:22:54,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:22:54,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 48, 41] total 137 [2024-09-08 09:22:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715210686] [2024-09-08 09:22:54,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:22:54,196 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-09-08 09:22:54,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:22:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-09-08 09:22:54,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=17644, Unknown=0, NotChecked=0, Total=18906 [2024-09-08 09:22:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:22:54,202 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:22:54,202 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 2.4927536231884058) internal successors, (344), 137 states have internal predecessors, (344), 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 09:22:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:22:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2024-09-08 09:22:54,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:24:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-08 09:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 395 states. [2024-09-08 09:24:32,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-08 09:24:32,987 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-08 09:24:32,988 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:24:32,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:24:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1297162524, now seen corresponding path program 5 times [2024-09-08 09:24:32,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:24:32,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298255191] [2024-09-08 09:24:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:24:32,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:24:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:24:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 612 proven. 620 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-09-08 09:24:33,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:24:33,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298255191] [2024-09-08 09:24:33,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298255191] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:24:33,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743874105] [2024-09-08 09:24:33,686 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 09:24:33,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:24:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:24:33,687 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:24:33,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 09:24:34,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-09-08 09:24:34,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:24:34,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-08 09:24:34,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:24:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 1182 proven. 175 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:24:35,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:24:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 1155 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:24:36,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743874105] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:24:36,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:24:36,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 31, 31] total 85 [2024-09-08 09:24:36,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233661380] [2024-09-08 09:24:36,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:24:36,578 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-08 09:24:36,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:24:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-08 09:24:36,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2075, Invalid=5235, Unknown=0, NotChecked=0, Total=7310 [2024-09-08 09:24:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:24:36,580 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:24:36,580 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 5.930232558139535) internal successors, (510), 85 states have internal predecessors, (510), 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 09:24:36,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 395 states. [2024-09-08 09:24:36,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:24:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 09:24:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 395 states. [2024-09-08 09:24:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 09:24:37,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-08 09:24:37,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 09:24:37,622 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 09:24:37,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:24:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2073526620, now seen corresponding path program 6 times [2024-09-08 09:24:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:24:37,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613645320] [2024-09-08 09:24:37,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:24:37,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:24:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:24:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 375 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:24:50,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:24:50,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613645320] [2024-09-08 09:24:50,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613645320] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:24:50,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787086251] [2024-09-08 09:24:50,875 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 09:24:50,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:24:50,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:24:50,876 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:24:50,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 09:24:52,119 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2024-09-08 09:24:52,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:24:52,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 185 conjuncts are in the unsatisfiable core [2024-09-08 09:24:52,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:24:53,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-09-08 09:24:53,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-09-08 09:24:53,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-09-08 09:24:53,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-09-08 09:25:11,219 INFO L349 Elim1Store]: treesize reduction 870, result has 18.6 percent of original size [2024-09-08 09:25:11,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 252 treesize of output 259 [2024-09-08 09:25:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 1 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:25:12,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:26:14,979 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 1261 treesize of output 1197