./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 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-queue-add-2.wvr.c ./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 10:56:26,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 10:56:26,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 10:56:26,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 10:56:26,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 10:56:27,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 10:56:27,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 10:56:27,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 10:56:27,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 10:56:27,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 10:56:27,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 10:56:27,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 10:56:27,008 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 10:56:27,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 10:56:27,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 10:56:27,010 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 10:56:27,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 10:56:27,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 10:56:27,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 10:56:27,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 10:56:27,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 10:56:27,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 10:56:27,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 10:56:27,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 10:56:27,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 10:56:27,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 10:56:27,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 10:56:27,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 10:56:27,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 10:56:27,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 10:56:27,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 10:56:27,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 10:56:27,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 10:56:27,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 10:56:27,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 10:56:27,019 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 10:56:27,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 10:56:27,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 10:56:27,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 10:56:27,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 10:56:27,021 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 10:56:27,022 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 10:56:27,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-23 10:56:27,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 10:56:27,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 10:56:27,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 10:56:27,291 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 10:56:27,291 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 10:56:27,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml [2024-08-23 10:56:27,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 10:56:27,366 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 10:56:27,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-08-23 10:56:28,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 10:56:28,989 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 10:56:28,990 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-08-23 10:56:28,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a759962b/4dcdcb61d7cb4186b55a789fb9dbd640/FLAGdb6f149cb [2024-08-23 10:56:29,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a759962b/4dcdcb61d7cb4186b55a789fb9dbd640 [2024-08-23 10:56:29,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 10:56:29,010 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 10:56:29,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 10:56:29,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 10:56:29,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 10:56:29,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 10:56:27" (1/2) ... [2024-08-23 10:56:29,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc85974 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 10:56:29, skipping insertion in model container [2024-08-23 10:56:29,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 10:56:27" (1/2) ... [2024-08-23 10:56:29,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13ad360d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 10:56:29, skipping insertion in model container [2024-08-23 10:56:29,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 10:56:29" (2/2) ... [2024-08-23 10:56:29,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc85974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29, skipping insertion in model container [2024-08-23 10:56:29,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 10:56:29" (2/2) ... [2024-08-23 10:56:29,021 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-23 10:56:29,032 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 10:56:29,033 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-23 10:56:29,036 INFO L106 edCorrectnessWitness]: ghost_update [L92-L92] multithreaded = 1; [2024-08-23 10:56:29,061 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 10:56:29,329 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-queue-add-2.wvr.c[2722,2735] [2024-08-23 10:56:29,344 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 10:56:29,361 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-08-23 10:56:29,410 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-queue-add-2.wvr.c[2722,2735] [2024-08-23 10:56:29,414 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 10:56:29,429 INFO L206 MainTranslator]: Completed translation [2024-08-23 10:56:29,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29 WrapperNode [2024-08-23 10:56:29,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 10:56:29,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 10:56:29,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 10:56:29,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 10:56:29,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,472 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 152 [2024-08-23 10:56:29,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 10:56:29,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 10:56:29,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 10:56:29,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 10:56:29,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 10:56:29,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 10:56:29,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 10:56:29,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 10:56:29,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (1/1) ... [2024-08-23 10:56:29,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 10:56:29,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:29,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-23 10:56:29,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-23 10:56:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 10:56:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 10:56:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 10:56:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 10:56:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 10:56:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 10:56:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 10:56:29,614 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 10:56:29,747 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 10:56:29,750 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 10:56:30,019 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 10:56:30,023 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 10:56:30,255 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 10:56:30,256 INFO L319 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-23 10:56:30,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 10:56:30 BoogieIcfgContainer [2024-08-23 10:56:30,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 10:56:30,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 10:56:30,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 10:56:30,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 10:56:30,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 10:56:27" (1/4) ... [2024-08-23 10:56:30,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455a90c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 10:56:30, skipping insertion in model container [2024-08-23 10:56:30,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 10:56:29" (2/4) ... [2024-08-23 10:56:30,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455a90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 10:56:30, skipping insertion in model container [2024-08-23 10:56:30,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 10:56:29" (3/4) ... [2024-08-23 10:56:30,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455a90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 10:56:30, skipping insertion in model container [2024-08-23 10:56:30,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 10:56:30" (4/4) ... [2024-08-23 10:56:30,266 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2024-08-23 10:56:30,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 10:56:30,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-23 10:56:30,286 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 10:56:30,330 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 10:56:30,368 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 10:56:30,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 10:56:30,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:30,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 10:56:30,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-23 10:56:30,412 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 10:56:30,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 10:56:30,429 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fc54baf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 10:56:30,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-23 10:56:30,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:30,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -27160235, now seen corresponding path program 1 times [2024-08-23 10:56:30,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:30,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113761153] [2024-08-23 10:56:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:30,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:31,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113761153] [2024-08-23 10:56:31,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113761153] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 10:56:31,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 10:56:31,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 10:56:31,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439026179] [2024-08-23 10:56:31,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 10:56:31,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 10:56:31,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:31,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 10:56:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 10:56:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:31,128 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:31,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:31,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 10:56:31,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:31,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:31,217 INFO L85 PathProgramCache]: Analyzing trace with hash 846712492, now seen corresponding path program 1 times [2024-08-23 10:56:31,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:31,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738966501] [2024-08-23 10:56:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:31,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:31,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:31,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738966501] [2024-08-23 10:56:31,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738966501] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:31,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59728838] [2024-08-23 10:56:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:31,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:31,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:31,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:31,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-23 10:56:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:31,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-23 10:56:31,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:31,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:31,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59728838] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:31,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:31,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-08-23 10:56:31,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425346189] [2024-08-23 10:56:31,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:31,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-23 10:56:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-23 10:56:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-08-23 10:56:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:31,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:31,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:31,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:31,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:32,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-08-23 10:56:32,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:32,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:32,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2128004043, now seen corresponding path program 2 times [2024-08-23 10:56:32,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:32,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110168822] [2024-08-23 10:56:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:32,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:32,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110168822] [2024-08-23 10:56:32,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110168822] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467627909] [2024-08-23 10:56:32,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 10:56:32,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:32,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:32,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:32,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-23 10:56:32,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 10:56:32,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:32,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 20 conjunts are in the unsatisfiable core [2024-08-23 10:56:32,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:33,223 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 12 treesize of output 3 [2024-08-23 10:56:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:33,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:33,433 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 10:56:33,433 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 24 treesize of output 11 [2024-08-23 10:56:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:33,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467627909] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:33,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2024-08-23 10:56:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975770839] [2024-08-23 10:56:33,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:33,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-08-23 10:56:33,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:33,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-08-23 10:56:33,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-08-23 10:56:33,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:33,698 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:33,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:33,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:33,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:33,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:34,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-23 10:56:34,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:34,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:34,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash -788436282, now seen corresponding path program 1 times [2024-08-23 10:56:34,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:34,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422880750] [2024-08-23 10:56:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:35,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:35,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422880750] [2024-08-23 10:56:35,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422880750] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:35,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646499378] [2024-08-23 10:56:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:35,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:35,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:35,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:35,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-23 10:56:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:35,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2024-08-23 10:56:35,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:35,422 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 12 treesize of output 3 [2024-08-23 10:56:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:35,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:35,601 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 10:56:35,602 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 24 treesize of output 11 [2024-08-23 10:56:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:35,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646499378] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:35,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:35,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 30 [2024-08-23 10:56:35,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003843653] [2024-08-23 10:56:35,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:35,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-08-23 10:56:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-08-23 10:56:35,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2024-08-23 10:56:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:35,975 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:35,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.967741935483871) internal successors, (92), 30 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:35,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:35,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:35,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:35,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:36,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-23 10:56:36,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:36,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:36,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1440896415, now seen corresponding path program 2 times [2024-08-23 10:56:36,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:36,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78850232] [2024-08-23 10:56:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:36,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:37,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78850232] [2024-08-23 10:56:37,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78850232] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446095701] [2024-08-23 10:56:37,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 10:56:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:37,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:37,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:37,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-23 10:56:37,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 10:56:37,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:37,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-23 10:56:37,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:37,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446095701] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:37,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:37,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2024-08-23 10:56:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749752447] [2024-08-23 10:56:37,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:37,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-08-23 10:56:37,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:37,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-08-23 10:56:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2024-08-23 10:56:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:37,914 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:37,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 29 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:37,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:37,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:37,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:37,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:37,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:38,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:38,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:38,285 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:38,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2072949526, now seen corresponding path program 3 times [2024-08-23 10:56:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719997733] [2024-08-23 10:56:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:39,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719997733] [2024-08-23 10:56:39,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719997733] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738713532] [2024-08-23 10:56:39,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 10:56:39,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:39,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:39,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:39,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-23 10:56:39,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-08-23 10:56:39,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:39,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 39 conjunts are in the unsatisfiable core [2024-08-23 10:56:39,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:39,458 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 [2024-08-23 10:56:39,498 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 [2024-08-23 10:56:39,535 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 [2024-08-23 10:56:39,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 10:56:39,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 30 [2024-08-23 10:56:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 10:56:40,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:43,436 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 101 treesize of output 95 [2024-08-23 10:56:43,475 INFO L349 Elim1Store]: treesize reduction 10, result has 47.4 percent of original size [2024-08-23 10:56:43,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 623 treesize of output 599 [2024-08-23 10:56:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 52 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 10:56:44,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738713532] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:44,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:44,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 41 [2024-08-23 10:56:44,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364311910] [2024-08-23 10:56:44,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:44,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-23 10:56:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:44,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-23 10:56:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1418, Unknown=0, NotChecked=0, Total=1722 [2024-08-23 10:56:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:44,424 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:44,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.142857142857143) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:44,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:45,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:45,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:45,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:45,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash -191759487, now seen corresponding path program 4 times [2024-08-23 10:56:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:45,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768411104] [2024-08-23 10:56:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:45,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:46,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:46,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768411104] [2024-08-23 10:56:46,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768411104] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:46,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43089701] [2024-08-23 10:56:46,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 10:56:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:46,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:46,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-23 10:56:46,764 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 10:56:46,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:46,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-23 10:56:46,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-23 10:56:47,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:47,127 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:56:47,128 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 26 treesize of output 14 [2024-08-23 10:56:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-08-23 10:56:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43089701] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:47,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:47,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 6] total 30 [2024-08-23 10:56:47,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070924488] [2024-08-23 10:56:47,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:47,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-08-23 10:56:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-08-23 10:56:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2024-08-23 10:56:47,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:47,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:47,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.064516129032258) internal successors, (95), 30 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:47,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:48,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:48,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-08-23 10:56:48,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:48,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:48,198 INFO L85 PathProgramCache]: Analyzing trace with hash -695081808, now seen corresponding path program 5 times [2024-08-23 10:56:48,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:48,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9337150] [2024-08-23 10:56:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:48,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 16 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:49,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:49,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9337150] [2024-08-23 10:56:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9337150] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:49,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24528362] [2024-08-23 10:56:49,230 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 10:56:49,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:49,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:49,232 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) [2024-08-23 10:56:49,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-23 10:56:49,427 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-08-23 10:56:49,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:49,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 37 conjunts are in the unsatisfiable core [2024-08-23 10:56:49,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:50,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 10:56:50,488 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 23 treesize of output 15 [2024-08-23 10:56:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:50,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:50,893 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:56:50,893 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 26 treesize of output 14 [2024-08-23 10:56:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:51,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24528362] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:51,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:51,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 22] total 62 [2024-08-23 10:56:51,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98080507] [2024-08-23 10:56:51,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:51,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-08-23 10:56:51,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:51,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-08-23 10:56:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=3218, Unknown=0, NotChecked=0, Total=3906 [2024-08-23 10:56:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:51,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:51,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.7936507936507935) internal successors, (176), 62 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:51,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:52,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:52,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:52,663 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:52,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:52,664 INFO L85 PathProgramCache]: Analyzing trace with hash -731486009, now seen corresponding path program 6 times [2024-08-23 10:56:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:52,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274830754] [2024-08-23 10:56:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:52,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:56:54,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:54,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274830754] [2024-08-23 10:56:54,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274830754] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:54,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983487661] [2024-08-23 10:56:54,327 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 10:56:54,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:54,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:54,330 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:54,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-23 10:56:55,196 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-08-23 10:56:55,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:56:55,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 43 conjunts are in the unsatisfiable core [2024-08-23 10:56:55,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 9 proven. 100 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-23 10:56:55,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:55,971 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:56:55,971 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 26 treesize of output 14 [2024-08-23 10:56:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 70 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-08-23 10:56:56,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983487661] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:56,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:56,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 15, 8] total 41 [2024-08-23 10:56:56,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185376544] [2024-08-23 10:56:56,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:56,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-23 10:56:56,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-23 10:56:56,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1588, Unknown=0, NotChecked=0, Total=1722 [2024-08-23 10:56:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:56,025 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:56,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:56,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:56,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:56,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:56,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:56,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:56,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:56,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:56,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:56,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:57,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:57,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:56:57,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-23 10:56:57,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:57,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:57,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1240701566, now seen corresponding path program 7 times [2024-08-23 10:56:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947487400] [2024-08-23 10:56:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:57,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 99 proven. 120 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:57,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:56:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947487400] [2024-08-23 10:56:57,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947487400] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:56:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627306736] [2024-08-23 10:56:57,956 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-23 10:56:57,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:56:57,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:56:57,959 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:56:57,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-23 10:56:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:56:58,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-23 10:56:58,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:56:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 174 proven. 45 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:58,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:56:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 121 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:56:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627306736] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:56:59,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:56:59,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 59 [2024-08-23 10:56:59,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401854332] [2024-08-23 10:56:59,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:56:59,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-08-23 10:56:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:56:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-08-23 10:56:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=752, Invalid=2788, Unknown=0, NotChecked=0, Total=3540 [2024-08-23 10:56:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:59,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:56:59,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.2666666666666666) internal successors, (196), 59 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:56:59,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:59,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:59,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:59,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:56:59,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:56:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:56:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:56:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:56:59,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-23 10:56:59,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-23 10:56:59,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:56:59,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:56:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1345998987, now seen corresponding path program 8 times [2024-08-23 10:56:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:56:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447444129] [2024-08-23 10:56:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:56:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:56:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 61 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:00,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:00,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447444129] [2024-08-23 10:57:00,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447444129] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:00,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262026802] [2024-08-23 10:57:00,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 10:57:00,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:00,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:00,973 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:00,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-23 10:57:01,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 10:57:01,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:01,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 43 conjunts are in the unsatisfiable core [2024-08-23 10:57:01,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:02,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 10:57:02,420 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 23 treesize of output 15 [2024-08-23 10:57:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 60 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:02,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:02,995 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:02,995 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 25 treesize of output 13 [2024-08-23 10:57:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 32 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:04,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262026802] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:04,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:04,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29, 29] total 83 [2024-08-23 10:57:04,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239370931] [2024-08-23 10:57:04,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:04,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-08-23 10:57:04,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-08-23 10:57:04,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1202, Invalid=5770, Unknown=0, NotChecked=0, Total=6972 [2024-08-23 10:57:04,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:04,230 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:04,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.6666666666666665) internal successors, (224), 83 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:04,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:05,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-08-23 10:57:05,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:05,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:05,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash -70662494, now seen corresponding path program 9 times [2024-08-23 10:57:05,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:05,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148252259] [2024-08-23 10:57:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 7 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:07,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:07,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148252259] [2024-08-23 10:57:07,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148252259] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:07,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103749573] [2024-08-23 10:57:07,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 10:57:07,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:07,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:07,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:07,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-23 10:57:07,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-08-23 10:57:07,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:07,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 76 conjunts are in the unsatisfiable core [2024-08-23 10:57:07,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:08,226 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 15 treesize of output 1 [2024-08-23 10:57:09,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 10:57:09,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 69 [2024-08-23 10:57:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 53 proven. 183 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-23 10:57:09,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:11,885 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 120 treesize of output 108 [2024-08-23 10:57:11,914 INFO L349 Elim1Store]: treesize reduction 25, result has 51.0 percent of original size [2024-08-23 10:57:11,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 154 [2024-08-23 10:57:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 7 proven. 229 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-23 10:57:12,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103749573] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:12,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26, 26] total 80 [2024-08-23 10:57:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200845957] [2024-08-23 10:57:12,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:12,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-08-23 10:57:12,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-08-23 10:57:12,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=884, Invalid=5596, Unknown=0, NotChecked=0, Total=6480 [2024-08-23 10:57:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:12,679 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:12,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.7037037037037037) internal successors, (219), 80 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:12,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:14,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-23 10:57:14,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-08-23 10:57:14,616 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:14,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1037495445, now seen corresponding path program 10 times [2024-08-23 10:57:14,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:14,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132388586] [2024-08-23 10:57:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:14,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 5 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:17,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132388586] [2024-08-23 10:57:17,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132388586] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829226642] [2024-08-23 10:57:17,089 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 10:57:17,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:17,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:17,090 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:17,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-23 10:57:17,216 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 10:57:17,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:17,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 41 conjunts are in the unsatisfiable core [2024-08-23 10:57:17,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 195 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-08-23 10:57:17,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:18,017 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:18,017 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 26 treesize of output 14 [2024-08-23 10:57:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 153 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-08-23 10:57:18,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829226642] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:18,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:18,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 14, 10] total 49 [2024-08-23 10:57:18,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676240045] [2024-08-23 10:57:18,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:18,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-08-23 10:57:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-08-23 10:57:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2314, Unknown=0, NotChecked=0, Total=2450 [2024-08-23 10:57:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:18,068 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:18,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.28) internal successors, (164), 49 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:18,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:18,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:19,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-23 10:57:19,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-08-23 10:57:19,716 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:19,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:19,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1909180944, now seen corresponding path program 11 times [2024-08-23 10:57:19,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:19,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215794260] [2024-08-23 10:57:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:19,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 11 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:22,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:22,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215794260] [2024-08-23 10:57:22,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215794260] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:22,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175675985] [2024-08-23 10:57:22,298 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 10:57:22,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:22,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:22,299 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:22,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-23 10:57:22,515 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-08-23 10:57:22,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:22,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 67 conjunts are in the unsatisfiable core [2024-08-23 10:57:22,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 19 proven. 285 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 10:57:23,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:23,884 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:23,885 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 26 treesize of output 14 [2024-08-23 10:57:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 10 proven. 204 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-08-23 10:57:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175675985] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:23,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 27, 12] total 66 [2024-08-23 10:57:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362217166] [2024-08-23 10:57:23,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:23,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-08-23 10:57:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-08-23 10:57:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=4143, Unknown=0, NotChecked=0, Total=4422 [2024-08-23 10:57:23,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:23,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:23,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.8507462686567164) internal successors, (191), 66 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:23,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:23,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:26,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-08-23 10:57:26,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-23 10:57:26,244 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:26,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:26,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1464032501, now seen corresponding path program 12 times [2024-08-23 10:57:26,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:26,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663619344] [2024-08-23 10:57:26,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:26,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 183 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:28,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:28,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663619344] [2024-08-23 10:57:28,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663619344] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:28,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365104560] [2024-08-23 10:57:28,095 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 10:57:28,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:28,097 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) [2024-08-23 10:57:28,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-23 10:57:29,084 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-08-23 10:57:29,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:29,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 69 conjunts are in the unsatisfiable core [2024-08-23 10:57:29,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:31,009 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 11 treesize of output 3 [2024-08-23 10:57:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 22 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:31,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:32,015 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:32,015 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 26 treesize of output 14 [2024-08-23 10:57:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 16 proven. 448 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:33,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365104560] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:33,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:33,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 38, 39] total 112 [2024-08-23 10:57:33,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030927585] [2024-08-23 10:57:33,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:33,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2024-08-23 10:57:33,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2024-08-23 10:57:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2207, Invalid=10449, Unknown=0, NotChecked=0, Total=12656 [2024-08-23 10:57:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:34,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:34,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 2.6194690265486726) internal successors, (296), 112 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:34,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:57:36,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-08-23 10:57:36,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:36,705 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:36,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:36,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1360102992, now seen corresponding path program 13 times [2024-08-23 10:57:36,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:36,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192132545] [2024-08-23 10:57:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 234 proven. 317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:38,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192132545] [2024-08-23 10:57:38,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192132545] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:38,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443024579] [2024-08-23 10:57:38,785 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-23 10:57:38,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:38,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:38,787 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) [2024-08-23 10:57:38,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-23 10:57:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:38,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 91 conjunts are in the unsatisfiable core [2024-08-23 10:57:38,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:41,653 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 11 treesize of output 3 [2024-08-23 10:57:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 23 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:41,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:42,717 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:42,717 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 25 treesize of output 13 [2024-08-23 10:57:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 10 proven. 541 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:44,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443024579] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:44,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 42] total 123 [2024-08-23 10:57:44,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600765567] [2024-08-23 10:57:44,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:44,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2024-08-23 10:57:44,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2024-08-23 10:57:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2745, Invalid=12507, Unknown=0, NotChecked=0, Total=15252 [2024-08-23 10:57:44,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:44,717 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:44,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.5806451612903225) internal successors, (320), 123 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:44,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:57:44,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:57:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:57:47,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-08-23 10:57:47,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-23 10:57:47,728 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:47,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1254967701, now seen corresponding path program 14 times [2024-08-23 10:57:47,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:47,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263202660] [2024-08-23 10:57:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:47,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 292 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:57:50,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:50,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263202660] [2024-08-23 10:57:50,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263202660] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:50,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869095373] [2024-08-23 10:57:50,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 10:57:50,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:50,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:50,064 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:50,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-23 10:57:50,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 10:57:50,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:50,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 87 conjunts are in the unsatisfiable core [2024-08-23 10:57:50,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 65 proven. 562 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-08-23 10:57:51,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:57:52,175 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:57:52,176 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 25 treesize of output 13 [2024-08-23 10:57:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 15 proven. 477 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-08-23 10:57:52,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869095373] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:57:52,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:57:52,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 16] total 84 [2024-08-23 10:57:52,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413977595] [2024-08-23 10:57:52,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:57:52,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-08-23 10:57:52,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:57:52,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-08-23 10:57:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=527, Invalid=6613, Unknown=0, NotChecked=0, Total=7140 [2024-08-23 10:57:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:52,247 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:57:52,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.0352941176470587) internal successors, (258), 84 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:57:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:52,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:57:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:57:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:57:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:57:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:57:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:57:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:57:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:57:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:57:54,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-08-23 10:57:54,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-23 10:57:54,968 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:57:54,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:57:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1553002366, now seen corresponding path program 15 times [2024-08-23 10:57:54,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:57:54,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157408683] [2024-08-23 10:57:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:57:54,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:57:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:57:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 455 proven. 300 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:57:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:57:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157408683] [2024-08-23 10:57:56,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157408683] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:57:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658270166] [2024-08-23 10:57:56,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 10:57:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:57:56,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:57:56,089 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:57:56,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-08-23 10:57:58,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-08-23 10:57:58,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:57:58,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 117 conjunts are in the unsatisfiable core [2024-08-23 10:57:58,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:57:58,794 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 19 treesize of output 1 [2024-08-23 10:57:58,822 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 19 treesize of output 1 [2024-08-23 10:57:58,851 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 19 treesize of output 1 [2024-08-23 10:57:58,879 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 19 treesize of output 1 [2024-08-23 10:57:58,911 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 19 treesize of output 1 [2024-08-23 10:57:58,940 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 19 treesize of output 1 [2024-08-23 10:57:58,984 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 19 treesize of output 1 [2024-08-23 10:58:00,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 10:58:00,633 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 95 [2024-08-23 10:58:00,669 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-23 10:58:00,674 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-08-23 10:58:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 2 proven. 656 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-08-23 10:58:00,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:58:09,822 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 545 treesize of output 529 [2024-08-23 10:58:13,937 INFO L349 Elim1Store]: treesize reduction 35, result has 50.7 percent of original size [2024-08-23 10:58:13,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38787897841 treesize of output 38670409652 [2024-08-23 10:58:21,936 WARN L293 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 46414 DAG size of output: 449 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-08-23 10:58:28,544 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-08-23 10:58:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 7 proven. 674 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-08-23 10:58:30,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658270166] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:58:30,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:58:30,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 40, 40] total 115 [2024-08-23 10:58:30,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377775328] [2024-08-23 10:58:30,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:58:30,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2024-08-23 10:58:30,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:58:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2024-08-23 10:58:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2147, Invalid=11192, Unknown=1, NotChecked=0, Total=13340 [2024-08-23 10:58:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:58:30,564 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:58:30,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.7672413793103448) internal successors, (321), 115 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:58:30,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:58:30,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:58:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:58:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:58:35,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:58:35,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-08-23 10:58:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-23 10:58:35,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:58:35,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:58:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1346784862, now seen corresponding path program 16 times [2024-08-23 10:58:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:58:35,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790707756] [2024-08-23 10:58:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:58:35,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:58:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:58:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 120 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:58:44,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:58:44,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790707756] [2024-08-23 10:58:44,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790707756] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:58:44,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082965000] [2024-08-23 10:58:44,170 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 10:58:44,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:58:44,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:58:44,171 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:58:44,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-08-23 10:58:44,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 10:58:44,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:58:44,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 101 conjunts are in the unsatisfiable core [2024-08-23 10:58:44,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:58:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 29 proven. 750 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 10:58:50,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:58:52,470 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 10:58:52,471 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 26 treesize of output 14 [2024-08-23 10:58:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 17 proven. 573 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-08-23 10:58:52,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082965000] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:58:52,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:58:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 43, 18] total 101 [2024-08-23 10:58:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803788743] [2024-08-23 10:58:52,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:58:52,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-08-23 10:58:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:58:52,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-08-23 10:58:52,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=524, Invalid=9778, Unknown=0, NotChecked=0, Total=10302 [2024-08-23 10:58:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:58:52,654 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:58:52,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.872549019607843) internal successors, (293), 101 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:58:52,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:58:52,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:58:52,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:59:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:59:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:59:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:04,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-08-23 10:59:04,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:59:04,665 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:59:04,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:59:04,665 INFO L85 PathProgramCache]: Analyzing trace with hash -545381113, now seen corresponding path program 17 times [2024-08-23 10:59:04,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:59:04,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803963086] [2024-08-23 10:59:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:59:04,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:59:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:59:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 636 proven. 381 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:59:07,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:59:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803963086] [2024-08-23 10:59:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803963086] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:59:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843919954] [2024-08-23 10:59:07,663 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 10:59:07,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:59:07,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:59:07,665 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:59:07,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-08-23 10:59:10,891 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-08-23 10:59:10,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:59:10,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 47 conjunts are in the unsatisfiable core [2024-08-23 10:59:10,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:59:16,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 729 proven. 288 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:59:16,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:59:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 731 proven. 286 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 10:59:23,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843919954] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 10:59:23,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 10:59:23,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 44] total 129 [2024-08-23 10:59:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373544191] [2024-08-23 10:59:23,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 10:59:23,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-08-23 10:59:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 10:59:23,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-08-23 10:59:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3961, Invalid=12809, Unknown=0, NotChecked=0, Total=16770 [2024-08-23 10:59:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:59:23,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 10:59:23,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 3.1076923076923078) internal successors, (404), 129 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:59:23,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:23,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 10:59:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 10:59:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 10:59:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:59:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 10:59:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 10:59:26,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-08-23 10:59:26,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-08-23 10:59:26,993 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 10:59:26,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 10:59:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash 277825552, now seen corresponding path program 18 times [2024-08-23 10:59:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 10:59:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358203144] [2024-08-23 10:59:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 10:59:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 10:59:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 10:59:33,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 535 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:59:33,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 10:59:33,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358203144] [2024-08-23 10:59:33,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358203144] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 10:59:33,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824097225] [2024-08-23 10:59:33,508 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 10:59:33,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 10:59:33,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 10:59:33,509 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 10:59:33,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-08-23 10:59:37,823 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2024-08-23 10:59:37,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 10:59:37,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 114 conjunts are in the unsatisfiable core [2024-08-23 10:59:37,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 10:59:40,280 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 [2024-08-23 10:59:46,798 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 12 treesize of output 3 [2024-08-23 10:59:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 29 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 10:59:46,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 10:59:55,950 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 41 treesize of output 37 [2024-08-23 10:59:55,979 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 10:59:55,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 48 [2024-08-23 11:00:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 1 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 11:00:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824097225] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 11:00:02,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 11:00:02,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 55, 56] total 163 [2024-08-23 11:00:02,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673418647] [2024-08-23 11:00:02,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 11:00:02,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2024-08-23 11:00:02,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 11:00:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2024-08-23 11:00:02,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4505, Invalid=22227, Unknown=0, NotChecked=0, Total=26732 [2024-08-23 11:00:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 11:00:02,063 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 11:00:02,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 164 states have (on average 2.5365853658536586) internal successors, (416), 163 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 11:00:02,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 11:00:02,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 11:00:02,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 11:00:02,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 11:00:02,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 11:00:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-08-23 11:00:08,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-08-23 11:00:08,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 11:00:08,188 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 11:00:08,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 11:00:08,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1511072391, now seen corresponding path program 19 times [2024-08-23 11:00:08,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 11:00:08,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427486298] [2024-08-23 11:00:08,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 11:00:08,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 11:00:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat