./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/26_stack_cas_longest-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i ./goblint.2024-09-02_08-21-23.files/protection-local/26_stack_cas_longest-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 17:53:01,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 17:53:01,625 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 17:53:01,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 17:53:01,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 17:53:01,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 17:53:01,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 17:53:01,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 17:53:01,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 17:53:01,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 17:53:01,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 17:53:01,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 17:53:01,665 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 17:53:01,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 17:53:01,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 17:53:01,669 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 17:53:01,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 17:53:01,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 17:53:01,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 17:53:01,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 17:53:01,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 17:53:01,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 17:53:01,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 17:53:01,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 17:53:01,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 17:53:01,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 17:53:01,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 17:53:01,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 17:53:01,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 17:53:01,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 17:53:01,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 17:53:01,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 17:53:01,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 17:53:01,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 17:53:01,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 17:53:01,673 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 17:53:01,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 17:53:01,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 17:53:01,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 17:53:01,676 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 17:53:01,676 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 17:53:01,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 17:53:01,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 17:53:01,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 17:53:01,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 17:53:01,992 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 17:53:01,993 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 17:53:01,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/26_stack_cas_longest-2.yml/witness.yml [2024-09-08 17:53:02,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 17:53:02,055 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 17:53:02,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2024-09-08 17:53:03,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 17:53:03,697 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 17:53:03,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2024-09-08 17:53:03,710 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2e6ec8b9f/f34f02e690bc4b738d3fdd9227520bad/FLAG450893ddd [2024-09-08 17:53:03,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2e6ec8b9f/f34f02e690bc4b738d3fdd9227520bad [2024-09-08 17:53:03,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 17:53:03,726 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 17:53:03,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 17:53:03,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 17:53:03,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 17:53:03,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 05:53:02" (1/2) ... [2024-09-08 17:53:03,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2c8980 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 05:53:03, skipping insertion in model container [2024-09-08 17:53:03,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 05:53:02" (1/2) ... [2024-09-08 17:53:03,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ee6e05f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 05:53:03, skipping insertion in model container [2024-09-08 17:53:03,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:53:03" (2/2) ... [2024-09-08 17:53:03,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2c8980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:03, skipping insertion in model container [2024-09-08 17:53:03,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:53:03" (2/2) ... [2024-09-08 17:53:03,759 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 17:53:03,763 INFO L1541 ArrayList]: Location invariant before [L751-L751] (m == 0 || m == 1) && (m2 == 0 || m2 == 1) [2024-09-08 17:53:03,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 17:53:04,155 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31306,31319] [2024-09-08 17:53:04,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 17:53:04,175 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-08 17:53:04,245 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31306,31319] [2024-09-08 17:53:04,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 17:53:04,290 INFO L204 MainTranslator]: Completed translation [2024-09-08 17:53:04,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04 WrapperNode [2024-09-08 17:53:04,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 17:53:04,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 17:53:04,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 17:53:04,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 17:53:04,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,351 INFO L138 Inliner]: procedures = 179, calls = 50, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 198 [2024-09-08 17:53:04,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 17:53:04,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 17:53:04,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 17:53:04,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 17:53:04,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 17:53:04,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 17:53:04,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 17:53:04,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 17:53:04,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (1/1) ... [2024-09-08 17:53:04,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 17:53:04,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:04,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 17:53:04,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 17:53:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 17:53:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-09-08 17:53:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-09-08 17:53:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 17:53:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 17:53:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 17:53:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-08 17:53:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-08 17:53:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 17:53:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 17:53:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 17:53:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 17:53:04,543 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 17:53:04,751 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 17:53:04,753 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 17:53:05,087 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 17:53:05,087 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 17:53:05,323 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 17:53:05,327 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 17:53:05,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:53:05 BoogieIcfgContainer [2024-09-08 17:53:05,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 17:53:05,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 17:53:05,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 17:53:05,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 17:53:05,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 05:53:02" (1/4) ... [2024-09-08 17:53:05,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4b2d2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 05:53:05, skipping insertion in model container [2024-09-08 17:53:05,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 05:53:03" (2/4) ... [2024-09-08 17:53:05,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4b2d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:53:05, skipping insertion in model container [2024-09-08 17:53:05,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:53:04" (3/4) ... [2024-09-08 17:53:05,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4b2d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:53:05, skipping insertion in model container [2024-09-08 17:53:05,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:53:05" (4/4) ... [2024-09-08 17:53:05,341 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2024-09-08 17:53:05,359 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 17:53:05,360 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-08 17:53:05,360 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 17:53:05,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-08 17:53:05,458 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:05,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 17:53:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:05,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 17:53:05,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 17:53:05,493 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 17:53:05,506 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-09-08 17:53:05,511 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@197cb9ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:05,511 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-08 17:53:05,661 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:05,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1040542185, now seen corresponding path program 1 times [2024-09-08 17:53:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144872089] [2024-09-08 17:53:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:06,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:06,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144872089] [2024-09-08 17:53:06,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144872089] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:06,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:06,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 17:53:06,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966870489] [2024-09-08 17:53:06,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:06,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 17:53:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:06,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 17:53:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 17:53:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:06,158 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:06,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:06,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:06,221 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 17:53:06,222 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:06,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2018172712, now seen corresponding path program 1 times [2024-09-08 17:53:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:06,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619351131] [2024-09-08 17:53:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:06,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:06,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:06,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619351131] [2024-09-08 17:53:06,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619351131] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:06,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829668133] [2024-09-08 17:53:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:06,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:06,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:06,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 17:53:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:06,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-08 17:53:06,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:06,901 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 11 treesize of output 7 [2024-09-08 17:53:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:06,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:07,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:07,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-09-08 17:53:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:07,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 17:53:07,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829668133] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:07,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 17:53:07,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-09-08 17:53:07,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830875700] [2024-09-08 17:53:07,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:07,094 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:07,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:07,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-08 17:53:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:07,097 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:07,097 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:07,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:07,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:07,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:07,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 17:53:07,387 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-08 17:53:07,388 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:07,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash -30205570, now seen corresponding path program 1 times [2024-09-08 17:53:07,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:07,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095742216] [2024-09-08 17:53:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:07,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:07,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:07,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095742216] [2024-09-08 17:53:07,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095742216] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:07,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:07,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 17:53:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741794025] [2024-09-08 17:53:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:07,544 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:07,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:07,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:07,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 17:53:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:07,546 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:07,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:07,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:07,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:07,651 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 17:53:07,651 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:07,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:07,652 INFO L85 PathProgramCache]: Analyzing trace with hash -30204545, now seen corresponding path program 1 times [2024-09-08 17:53:07,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:07,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534102849] [2024-09-08 17:53:07,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:07,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:08,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:08,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534102849] [2024-09-08 17:53:08,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534102849] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:08,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566693099] [2024-09-08 17:53:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:08,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:08,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:08,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:08,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 17:53:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:08,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-08 17:53:08,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:08,326 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:08,326 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 11 treesize of output 11 [2024-09-08 17:53:08,476 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-09-08 17:53:08,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:08,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:08,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:08,741 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-09-08 17:53:08,750 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 33 treesize of output 25 [2024-09-08 17:53:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:08,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566693099] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:08,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:08,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 21 [2024-09-08 17:53:08,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085234147] [2024-09-08 17:53:08,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:08,939 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-08 17:53:08,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:08,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-08 17:53:08,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=431, Unknown=1, NotChecked=0, Total=506 [2024-09-08 17:53:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:08,942 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:08,942 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 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) [2024-09-08 17:53:08,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:08,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:08,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:08,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:53:09,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 17:53:09,731 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:09,732 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:09,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:09,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1201889769, now seen corresponding path program 1 times [2024-09-08 17:53:09,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:09,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435678255] [2024-09-08 17:53:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:09,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:09,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435678255] [2024-09-08 17:53:09,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435678255] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088237574] [2024-09-08 17:53:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:09,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:09,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:09,813 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:09,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 17:53:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:09,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 17:53:09,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:09,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:10,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088237574] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:10,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:10,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-08 17:53:10,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223237937] [2024-09-08 17:53:10,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:10,048 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 17:53:10,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:10,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 17:53:10,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-08 17:53:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:10,050 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:10,050 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:10,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:10,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:10,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:10,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:53:10,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-08 17:53:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:10,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 17:53:10,382 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:10,383 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:10,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 267907496, now seen corresponding path program 1 times [2024-09-08 17:53:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525847630] [2024-09-08 17:53:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:10,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:10,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:10,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525847630] [2024-09-08 17:53:10,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525847630] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:10,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104026472] [2024-09-08 17:53:10,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:10,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:10,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:10,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:10,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 17:53:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:11,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-08 17:53:11,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:11,165 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 11 treesize of output 7 [2024-09-08 17:53:11,234 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:11,235 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 11 treesize of output 11 [2024-09-08 17:53:11,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:11,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:11,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:11,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2024-09-08 17:53:11,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:11,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:11,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-09-08 17:53:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:11,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:11,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:11,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2024-09-08 17:53:11,627 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|~#m~0.offset| Int)) (or (not (= (select v_arrayElimArr_3 |~#m~0.offset|) 0)) (= (select (select (store |c_#memory_int| |c_~#m~0.base| v_arrayElimArr_3) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0))) is different from false [2024-09-08 17:53:11,921 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_~#top~0.base| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base|))) (and (or (forall ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (|~#m~0.offset| Int)) (or (not (= (select v_arrayElimArr_3 |~#m~0.offset|) 0)) (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_4) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_5) |c_~#m~0.base| v_arrayElimArr_3) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0))) .cse0) (or (not .cse0) (forall ((v_DerPreprocessor_3 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (|~#m~0.offset| Int)) (or (not (= (select v_arrayElimArr_3 |~#m~0.offset|) 0)) (= (select (select (store (store |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_3) |c_~#m~0.base| v_arrayElimArr_3) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0)))))) is different from false [2024-09-08 17:53:12,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:12,195 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2024-09-08 17:53:12,198 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 60 treesize of output 52 [2024-09-08 17:53:12,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:12,207 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 46 treesize of output 48 [2024-09-08 17:53:12,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 20 [2024-09-08 17:53:12,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:12,239 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2024-09-08 17:53:12,246 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 242 treesize of output 230 [2024-09-08 17:53:12,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 100 treesize of output 96 [2024-09-08 17:53:12,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 52 treesize of output 50 [2024-09-08 17:53:12,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:12,272 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 100 treesize of output 98 [2024-09-08 17:53:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2024-09-08 17:53:12,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104026472] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:12,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:12,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 21 [2024-09-08 17:53:12,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474495338] [2024-09-08 17:53:12,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:12,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-08 17:53:12,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:12,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-08 17:53:12,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=315, Unknown=16, NotChecked=78, Total=506 [2024-09-08 17:53:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:12,467 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:12,467 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 22 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:12,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:12,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:12,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:12,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-09-08 17:53:12,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:12,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 17:53:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:12,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 17:53:13,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-08 17:53:13,091 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:13,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:13,091 INFO L85 PathProgramCache]: Analyzing trace with hash 791436063, now seen corresponding path program 1 times [2024-09-08 17:53:13,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:13,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899615203] [2024-09-08 17:53:13,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:13,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 17:53:13,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:13,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899615203] [2024-09-08 17:53:13,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899615203] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:13,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328972539] [2024-09-08 17:53:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:13,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:13,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:13,596 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:13,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 17:53:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:13,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-08 17:53:13,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:14,027 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-09-08 17:53:14,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-09-08 17:53:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:14,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328972539] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:14,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:14,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7] total 23 [2024-09-08 17:53:14,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59036072] [2024-09-08 17:53:14,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:14,394 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-08 17:53:14,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:14,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-08 17:53:14,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=504, Unknown=4, NotChecked=0, Total=600 [2024-09-08 17:53:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:14,398 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:14,398 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.041666666666667) internal successors, (145), 24 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:14,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:14,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:14,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:14,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 17:53:14,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:14,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:14,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:14,623 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse1 (= |c_~#top~0.base| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base|)) (.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse3 |c_~#top~0.offset|)))) (and (= c_~next_alloc_idx~0 3) (or (and (not (= |c_thr1Thread1of1ForFork0_push_~newTop~0#1| 0)) .cse0) .cse1) (or (forall ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_DerPreprocessor_7 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_7) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (= |c_~#top~0.offset| 0) (or (not .cse1) (= |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| |c_~#top~0.offset|)) (or (forall ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int)) (not (= (select (select (let ((.cse2 (store |c_#memory_int| |c_~#top~0.base| (store .cse3 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)))) (store .cse2 |thr1Thread1of1ForFork0_push_~#casret~0#1.base| (store (select .cse2 |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1))) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2024-09-08 17:53:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-08 17:53:16,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 17:53:16,193 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:16,193 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:16,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash -712014424, now seen corresponding path program 1 times [2024-09-08 17:53:16,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:16,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577285982] [2024-09-08 17:53:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:16,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-08 17:53:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577285982] [2024-09-08 17:53:16,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577285982] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:16,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:16,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 17:53:16,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706378059] [2024-09-08 17:53:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:16,493 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 17:53:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 17:53:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 17:53:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:16,494 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:16,494 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-09-08 17:53:16,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 17:53:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 17:53:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-09-08 17:53:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:17,284 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-08 17:53:17,284 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-09-08 17:53:17,284 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-08 17:53:17,291 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-08 17:53:17,293 INFO L312 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE (1/2) [2024-09-08 17:53:17,295 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:17,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 17:53:17,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:17,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 17:53:17,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-09-08 17:53:17,300 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 17:53:17,300 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 17:53:17,300 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@197cb9ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:17,301 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 17:53:17,363 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:17,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1951987706, now seen corresponding path program 1 times [2024-09-08 17:53:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:17,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151182767] [2024-09-08 17:53:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:17,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151182767] [2024-09-08 17:53:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151182767] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 17:53:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126540637] [2024-09-08 17:53:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:17,400 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 17:53:17,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:17,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 17:53:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 17:53:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:17,401 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:17,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:17,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:17,427 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-08 17:53:17,427 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:17,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:17,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1973047627, now seen corresponding path program 1 times [2024-09-08 17:53:17,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:17,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630340614] [2024-09-08 17:53:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:17,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 17:53:17,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-08 17:53:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 17:53:17,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-08 17:53:17,481 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-08 17:53:17,482 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-09-08 17:53:17,482 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-08 17:53:17,483 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 17:53:17,484 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-09-08 17:53:17,484 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-08 17:53:17,484 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-09-08 17:53:17,520 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-08 17:53:17,522 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:17,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 17:53:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:17,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 17:53:17,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-09-08 17:53:17,528 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 17:53:17,528 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 17:53:17,529 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@197cb9ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:17,530 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 17:53:17,718 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:17,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash -609343590, now seen corresponding path program 1 times [2024-09-08 17:53:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121394429] [2024-09-08 17:53:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121394429] [2024-09-08 17:53:17,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121394429] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:17,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:17,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 17:53:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572872171] [2024-09-08 17:53:17,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:17,783 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 17:53:17,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:17,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 17:53:17,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 17:53:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:17,784 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:17,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:17,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:17,837 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-08 17:53:17,837 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:17,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1909179271, now seen corresponding path program 1 times [2024-09-08 17:53:17,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:17,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381982384] [2024-09-08 17:53:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:17,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:17,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:17,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381982384] [2024-09-08 17:53:17,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381982384] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372834476] [2024-09-08 17:53:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:17,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:17,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:17,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:17,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 17:53:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:18,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 17:53:18,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:18,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372834476] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:18,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:18,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-08 17:53:18,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167397495] [2024-09-08 17:53:18,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:18,118 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 17:53:18,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 17:53:18,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-08 17:53:18,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:18,120 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:18,120 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:18,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:18,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:18,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 17:53:18,377 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:18,377 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:18,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:18,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1017209833, now seen corresponding path program 1 times [2024-09-08 17:53:18,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:18,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120606392] [2024-09-08 17:53:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:18,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:18,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:18,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120606392] [2024-09-08 17:53:18,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120606392] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:18,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:18,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 17:53:18,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286448569] [2024-09-08 17:53:18,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:18,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 17:53:18,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:18,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 17:53:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 17:53:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:18,502 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:18,502 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:18,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:18,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:18,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:18,558 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-08 17:53:18,559 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:18,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1144215043, now seen corresponding path program 1 times [2024-09-08 17:53:18,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:18,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568669613] [2024-09-08 17:53:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:18,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568669613] [2024-09-08 17:53:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568669613] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129534928] [2024-09-08 17:53:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:18,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:18,795 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:18,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 17:53:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:18,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-08 17:53:18,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:19,038 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 11 treesize of output 7 [2024-09-08 17:53:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:19,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:19,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:19,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-09-08 17:53:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:19,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:19,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:19,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2024-09-08 17:53:21,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:21,529 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-09-08 17:53:21,535 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 30 treesize of output 22 [2024-09-08 17:53:21,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:21,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 33 [2024-09-08 17:53:21,552 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-08 17:53:21,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-09-08 17:53:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:21,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129534928] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:21,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:21,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 10] total 22 [2024-09-08 17:53:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441966950] [2024-09-08 17:53:21,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:21,727 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-08 17:53:21,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-08 17:53:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=370, Unknown=13, NotChecked=0, Total=506 [2024-09-08 17:53:21,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:21,729 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:21,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 22 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:21,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:21,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:21,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:21,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:22,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:22,374 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-08 17:53:22,375 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:22,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash -862726886, now seen corresponding path program 1 times [2024-09-08 17:53:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718916645] [2024-09-08 17:53:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 17:53:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718916645] [2024-09-08 17:53:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718916645] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:22,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 17:53:22,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94996770] [2024-09-08 17:53:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:22,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 17:53:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:22,474 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:22,474 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:22,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:22,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-08 17:53:22,654 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:22,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash 510816190, now seen corresponding path program 1 times [2024-09-08 17:53:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:22,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693134275] [2024-09-08 17:53:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:22,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:23,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:23,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693134275] [2024-09-08 17:53:23,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693134275] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:23,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840424048] [2024-09-08 17:53:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:23,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:23,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:23,092 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:23,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 17:53:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:23,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-08 17:53:23,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:23,294 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:23,294 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 11 treesize of output 11 [2024-09-08 17:53:23,374 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 11 treesize of output 7 [2024-09-08 17:53:23,480 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2024-09-08 17:53:23,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 34 [2024-09-08 17:53:23,492 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-09-08 17:53:23,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 33 [2024-09-08 17:53:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:23,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:23,691 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#top~0.offset| Int) (v_DerPreprocessor_11 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store (select |c_#memory_int| |c_~#top~0.base|) |~#top~0.offset| |c_thr1Thread1of2ForFork0_push_~newTop~0#1|)) |c_thr1Thread1of2ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_11) |c_~#top~0.base|) |~#top~0.offset|) 0))) is different from false [2024-09-08 17:53:23,716 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-09-08 17:53:23,716 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 38 [2024-09-08 17:53:23,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:23,726 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 51 treesize of output 50 [2024-09-08 17:53:23,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 18 [2024-09-08 17:53:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-09-08 17:53:23,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840424048] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:23,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:23,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 28 [2024-09-08 17:53:23,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981098518] [2024-09-08 17:53:23,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:23,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-08 17:53:23,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:23,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-08 17:53:23,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=630, Unknown=5, NotChecked=52, Total=812 [2024-09-08 17:53:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:23,900 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:23,900 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.6206896551724137) internal successors, (105), 28 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:23,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 17:53:24,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-08 17:53:24,750 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:24,750 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 17:53:24,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1296638273, now seen corresponding path program 1 times [2024-09-08 17:53:24,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:24,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586400678] [2024-09-08 17:53:24,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:24,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 17:53:24,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-08 17:53:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 17:53:24,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-08 17:53:24,851 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-08 17:53:24,852 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-09-08 17:53:24,852 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-08 17:53:24,853 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-08 17:53:24,853 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-09-08 17:53:24,853 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-08 17:53:24,854 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-09-08 17:53:24,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-08 17:53:24,908 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 17:53:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:24,909 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 17:53:24,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-09-08 17:53:24,912 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 17:53:24,912 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-09-08 17:53:24,912 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@197cb9ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 17:53:24,912 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-08 17:53:25,260 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:25,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash -213410961, now seen corresponding path program 1 times [2024-09-08 17:53:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135620233] [2024-09-08 17:53:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 17:53:25,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:25,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135620233] [2024-09-08 17:53:25,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135620233] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:25,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:25,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 17:53:25,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453683624] [2024-09-08 17:53:25,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:25,331 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 17:53:25,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:25,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 17:53:25,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 17:53:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:25,332 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:25,332 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:25,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:25,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:25,413 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-08 17:53:25,414 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:25,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:25,414 INFO L85 PathProgramCache]: Analyzing trace with hash -203721767, now seen corresponding path program 1 times [2024-09-08 17:53:25,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:25,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924016189] [2024-09-08 17:53:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:25,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924016189] [2024-09-08 17:53:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924016189] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610367468] [2024-09-08 17:53:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:25,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:25,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:25,504 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:25,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 17:53:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:25,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 17:53:25,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:25,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:25,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610367468] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:25,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-08 17:53:25,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326746240] [2024-09-08 17:53:25,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:25,796 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 17:53:25,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:25,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 17:53:25,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-08 17:53:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:25,797 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:25,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:25,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:25,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:25,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-08 17:53:26,099 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:26,099 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:26,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash -78370665, now seen corresponding path program 1 times [2024-09-08 17:53:26,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:26,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369609757] [2024-09-08 17:53:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 17:53:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369609757] [2024-09-08 17:53:26,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369609757] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:26,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:26,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 17:53:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977857714] [2024-09-08 17:53:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:26,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 17:53:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 17:53:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 17:53:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:26,226 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:26,226 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:26,444 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-08 17:53:26,444 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:26,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 241504629, now seen corresponding path program 1 times [2024-09-08 17:53:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443585877] [2024-09-08 17:53:26,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 17:53:26,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:26,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443585877] [2024-09-08 17:53:26,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443585877] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:26,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:26,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 17:53:26,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061147559] [2024-09-08 17:53:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:26,659 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:26,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 17:53:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:26,660 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:26,660 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:26,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:26,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:26,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:26,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:26,893 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-08 17:53:26,893 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:26,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1192403510, now seen corresponding path program 1 times [2024-09-08 17:53:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119471413] [2024-09-08 17:53:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 17:53:27,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119471413] [2024-09-08 17:53:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119471413] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169656525] [2024-09-08 17:53:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:27,509 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:27,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 17:53:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:27,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-09-08 17:53:27,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:27,780 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 11 treesize of output 7 [2024-09-08 17:53:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:27,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:27,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:27,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:28,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,352 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-09-08 17:53:28,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2024-09-08 17:53:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,469 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-09-08 17:53:28,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 31 [2024-09-08 17:53:28,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,583 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-09-08 17:53:28,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 34 [2024-09-08 17:53:28,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:28,768 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2024-09-08 17:53:28,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 45 [2024-09-08 17:53:29,203 INFO L349 Elim1Store]: treesize reduction 160, result has 30.1 percent of original size [2024-09-08 17:53:29,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 70 treesize of output 117 [2024-09-08 17:53:29,278 INFO L349 Elim1Store]: treesize reduction 68, result has 39.3 percent of original size [2024-09-08 17:53:29,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 84 treesize of output 109 [2024-09-08 17:53:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:30,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:30,831 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#m2~0.offset| Int) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m2~0.base| (store (select |c_#memory_int| |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2024-09-08 17:53:30,843 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#m2~0.offset| Int) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m2~0.base| (store (select |c_#memory_int| |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2024-09-08 17:53:30,852 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (let ((.cse1 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032))) (store .cse1 |c_~#m2~0.base| (store (select .cse1 |c_~#m2~0.base|) |~#m2~0.offset| 0))))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2024-09-08 17:53:30,860 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (let ((.cse1 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032))) (store .cse1 |c_~#m2~0.base| (store (select .cse1 |c_~#m2~0.base|) |~#m2~0.offset| 0))))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2024-09-08 17:53:30,917 WARN L854 $PredicateComparison]: unable to prove that (and (or (not (= c_~state~0 0)) (forall ((|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse1 (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032))) (let ((.cse0 (store (select .cse1 |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse0) |c_~#top~0.base| (store (select (store .cse1 |c_~#m2~0.base| .cse0) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0)))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (forall ((|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse2 (let ((.cse3 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032))) (store .cse3 |c_~#m2~0.base| (store (select .cse3 |c_~#m2~0.base|) |~#m2~0.offset| 0))))) (store .cse2 |c_~#top~0.base| (store (select .cse2 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) is different from false [2024-09-08 17:53:31,198 WARN L854 $PredicateComparison]: unable to prove that (and (or (not (= c_~state~0 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse0 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse0) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse0) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))) (forall ((v_ArrVal_1028 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int)) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse1 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse1 |c_~#top~0.base| (store (select .cse1 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))))) is different from false [2024-09-08 17:53:32,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:32,176 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 1 case distinctions, treesize of input 12 treesize of output 8 [2024-09-08 17:53:32,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:32,215 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 524 treesize of output 538 [2024-09-08 17:53:32,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 343 treesize of output 335 [2024-09-08 17:53:32,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 335 treesize of output 333 [2024-09-08 17:53:32,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 333 treesize of output 329 [2024-09-08 17:53:32,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 329 treesize of output 327 [2024-09-08 17:53:32,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 327 treesize of output 319 [2024-09-08 17:53:32,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 319 treesize of output 315 [2024-09-08 17:53:32,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 315 treesize of output 313 [2024-09-08 17:53:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:32,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169656525] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:32,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:32,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 21] total 50 [2024-09-08 17:53:32,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034704211] [2024-09-08 17:53:32,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:32,722 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-08 17:53:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:32,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-08 17:53:32,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1737, Unknown=24, NotChecked=546, Total=2550 [2024-09-08 17:53:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:32,724 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:32,724 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.1176470588235294) internal successors, (159), 50 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:32,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:32,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:32,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:32,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:32,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:33,516 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse9 (= c_~state~0 1))) (let ((.cse3 (not .cse9)) (.cse4 (not (= c_~state~0 0)))) (let ((.cse8 (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (let ((.cse21 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (or (not (= (+ (select (select (store .cse21 |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse22 (store (select (store (store .cse21 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse22) |c_~#top~0.base| (store (select (store (store .cse21 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse22) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))) (.cse15 (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse20 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse20 |c_~#top~0.base| (store (select .cse20 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse3))) (let ((.cse0 (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0)) (.cse1 (and .cse8 .cse15))) (and (or .cse0 .cse1) (forall ((v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|)) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (= |c_~#top~0.offset| 0) (or (and (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse2 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse2 |c_~#top~0.base| (store (select .cse2 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse3) (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse6 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (let ((.cse5 (store (select (store (store .cse6 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse5) |c_~#top~0.base| (store (select (store (store .cse6 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse5) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0)))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))))) .cse0) (forall ((|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int)) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse7 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse7 |c_~#top~0.base| (store (select .cse7 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))) .cse8 .cse9 (or (= c_~next_alloc_idx~0 0) (let ((.cse12 (+ c_~next_alloc_idx~0 2))) (and (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse11 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (let ((.cse10 (store (select (store (store .cse11 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse10) |c_~#top~0.base| (store (select (store (store .cse11 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse10) |c_~#top~0.base|) |c_~#top~0.offset| .cse12)))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse4) (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= 0 (select (select (store (let ((.cse13 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse13 |c_~#top~0.base| (store (select .cse13 |c_~#top~0.base|) |c_~#top~0.offset| .cse12))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|))))) .cse3)))) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse14 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse14 |c_~#top~0.base| (store (select .cse14 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse15 (or .cse1 (= |c_thr1Thread1of3ForFork0_push_~newTop~0#1| 0)) (not (= |c_thr1Thread2of3ForFork0_push_~newTop~0#1| 0)) (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse16 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse16) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse16) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (not |c_thr1Thread2of3ForFork0_#t~switch18#1|) (and (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse17 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse17) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse17) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))) (forall ((v_ArrVal_1028 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int)) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse18 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse18 |c_~#top~0.base| (store (select .cse18 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))) (or (= |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~#casret~0#1.offset|) (not (= |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| |c_~#top~0.base|))) (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse19 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse19) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse19) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))))))))) is different from false [2024-09-08 17:53:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 17:53:33,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:34,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:34,073 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:34,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2003898999, now seen corresponding path program 2 times [2024-09-08 17:53:34,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:34,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767821888] [2024-09-08 17:53:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:34,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:34,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767821888] [2024-09-08 17:53:34,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767821888] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:34,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236986763] [2024-09-08 17:53:34,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 17:53:34,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:34,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:34,484 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:34,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 17:53:34,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 17:53:34,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 17:53:34,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-08 17:53:34,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:34,810 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 11 treesize of output 7 [2024-09-08 17:53:34,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:34,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:34,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:34,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:34,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:34,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:34,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-09-08 17:53:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 17:53:34,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 17:53:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236986763] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 17:53:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-09-08 17:53:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139338696] [2024-09-08 17:53:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:34,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:34,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:34,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-08 17:53:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:34,958 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:34,958 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 17:53:34,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:35,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:35,403 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:35,404 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:35,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:35,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1651321694, now seen corresponding path program 2 times [2024-09-08 17:53:35,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:35,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033694306] [2024-09-08 17:53:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033694306] [2024-09-08 17:53:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033694306] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523814776] [2024-09-08 17:53:35,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 17:53:35,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:35,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:35,906 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:53:35,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 17:53:36,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 17:53:36,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 17:53:36,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-08 17:53:36,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:36,521 INFO L349 Elim1Store]: treesize reduction 96, result has 35.6 percent of original size [2024-09-08 17:53:36,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 67 treesize of output 120 [2024-09-08 17:53:36,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-09-08 17:53:36,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-09-08 17:53:36,597 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-09-08 17:53:36,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 26 [2024-09-08 17:53:36,644 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-09-08 17:53:36,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 26 [2024-09-08 17:53:36,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 50 treesize of output 33 [2024-09-08 17:53:36,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-09-08 17:53:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 17:53:37,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 17:53:37,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523814776] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:37,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 17:53:37,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2024-09-08 17:53:37,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976365936] [2024-09-08 17:53:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:37,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:37,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:37,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-09-08 17:53:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:37,817 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:37,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:37,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:37,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:37,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:37,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:37,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-08 17:53:38,638 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-08 17:53:38,638 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:38,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:38,639 INFO L85 PathProgramCache]: Analyzing trace with hash -914229436, now seen corresponding path program 1 times [2024-09-08 17:53:38,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:38,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822496488] [2024-09-08 17:53:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:38,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 17:53:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822496488] [2024-09-08 17:53:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822496488] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:38,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:38,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 17:53:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382972737] [2024-09-08 17:53:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:38,765 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 17:53:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:38,766 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:38,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:38,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:38,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:38,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:39,051 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-08 17:53:39,053 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:39,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:39,053 INFO L85 PathProgramCache]: Analyzing trace with hash -914228411, now seen corresponding path program 1 times [2024-09-08 17:53:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:39,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258461648] [2024-09-08 17:53:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:39,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 17:53:39,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:39,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258461648] [2024-09-08 17:53:39,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258461648] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:39,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882535618] [2024-09-08 17:53:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:39,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:39,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:39,447 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) [2024-09-08 17:53:39,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-08 17:53:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:39,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-08 17:53:39,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:39,738 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 11 treesize of output 7 [2024-09-08 17:53:39,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:39,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:39,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:39,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:40,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:40,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:40,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:40,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,293 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:40,293 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 17 treesize of output 13 [2024-09-08 17:53:40,514 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-09-08 17:53:40,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:40,600 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:40,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:40,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:40,665 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-09-08 17:53:40,668 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 33 treesize of output 25 [2024-09-08 17:53:40,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-09-08 17:53:40,881 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= c_~next_alloc_idx~0 0))) (.cse1 (= c_~state~0 0))) (and (or (and (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_24 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse0) (forall ((v_prenex_188 (Array Int Int)) (v_DerPreprocessor_24 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_prenex_188) |c_~#top~0.base|) 0) 1) 0)))) (not .cse1)) (or (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) .cse1))) is different from false [2024-09-08 17:53:41,386 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of3ForFork0_push_~newTop~0#1| 0) (let ((.cse0 (not (= c_~next_alloc_idx~0 0)))) (and (or (not (= c_~state~0 0)) (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))))) (or (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) (not (= c_~state~0 1)))))) is different from false [2024-09-08 17:53:41,419 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0) (let ((.cse0 (not (= c_~next_alloc_idx~0 0)))) (and (or (not (= c_~state~0 0)) (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))))) (or (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) (not (= c_~state~0 1)))))) is different from false [2024-09-08 17:53:41,454 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0) (let ((.cse0 (not (= c_~next_alloc_idx~0 0)))) (and (or (and (forall ((v_ArrVal_1385 (Array Int Int)) (v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1385 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse0)) (not (= c_~state~0 0))) (or (and (forall ((v_ArrVal_1385 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0))) (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1385 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))))) (not (= c_~state~0 1)))))) is different from false [2024-09-08 17:53:41,490 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 2) 0)))) (and (or (and (forall ((v_ArrVal_1385 (Array Int Int)) (v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1385 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse0)) (not (= c_~state~0 0))) (or (and (or .cse0 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1385 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_ArrVal_1385 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1385) |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) (not (= c_~state~0 1))))) (= c_~next_alloc_idx~0 0)) is different from false [2024-09-08 17:53:41,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:41,652 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 1 case distinctions, treesize of input 12 treesize of output 8 [2024-09-08 17:53:41,715 INFO L349 Elim1Store]: treesize reduction 22, result has 60.0 percent of original size [2024-09-08 17:53:41,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1434 treesize of output 1418 [2024-09-08 17:53:41,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 303 treesize of output 301 [2024-09-08 17:53:41,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 301 treesize of output 293 [2024-09-08 17:53:41,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 293 treesize of output 289 [2024-09-08 17:53:41,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 289 treesize of output 285 [2024-09-08 17:53:41,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 285 treesize of output 283 [2024-09-08 17:53:41,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 283 treesize of output 281 [2024-09-08 17:53:41,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 281 treesize of output 279 [2024-09-08 17:53:41,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 279 treesize of output 277 [2024-09-08 17:53:41,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 277 treesize of output 273 [2024-09-08 17:53:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2024-09-08 17:53:42,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882535618] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:42,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:42,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 15] total 37 [2024-09-08 17:53:42,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583685356] [2024-09-08 17:53:42,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:42,078 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-08 17:53:42,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:42,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-08 17:53:42,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=969, Unknown=11, NotChecked=340, Total=1482 [2024-09-08 17:53:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:42,080 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:42,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 5.026315789473684) internal successors, (191), 38 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) [2024-09-08 17:53:42,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:42,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:42,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:42,541 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (not (= c_~next_alloc_idx~0 0)))) (let ((.cse2 (or .cse1 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))))) (.cse4 (forall ((v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) (.cse5 (= c_~state~0 0))) (let ((.cse0 (not .cse5)) (.cse3 (and .cse2 .cse4))) (and (= |c_~#top~0.offset| 0) (or .cse0 (and (or .cse1 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))))) (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int)) (not (= (+ (select (select |c_#memory_int| |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse1) .cse2 (not (= (+ (select (select |c_#memory_int| |c_~#top~0.base|) 0) 1) 0)) (or .cse3 (not (= c_~state~0 1))) .cse4 (or (not |c_thr1Thread2of3ForFork0_#t~switch18#1|) (and (or (and (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_24 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse1) (forall ((v_prenex_188 (Array Int Int)) (v_DerPreprocessor_24 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_prenex_188) |c_~#top~0.base|) 0) 1) 0)))) .cse0) (or .cse3 .cse5))))))) is different from false [2024-09-08 17:53:42,697 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (not (= c_~next_alloc_idx~0 0)))) (let ((.cse2 (or .cse1 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))))) (.cse4 (forall ((v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1391) |c_~#top~0.base|) 0) 1) 0)))) (.cse5 (= c_~state~0 0))) (let ((.cse0 (not .cse5)) (.cse3 (and .cse2 .cse4))) (and (not (= |c_thr1Thread3of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0)) (= c_~next_alloc_idx~0 3) (not (= |c_thr1Thread3of3ForFork0_push_~newTop~0#1| 0)) (= |c_~#top~0.offset| 0) (or .cse0 (and (or .cse1 (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_25 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0)))) (forall ((v_prenex_205 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_25) |c_~#m2~0.base| v_prenex_205) |c_~#top~0.base|) 0) 1) 0))))) (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int)) (not (= (+ (select (select |c_#memory_int| |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse1) (not (= |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| |c_~#top~0.base|)) (not (= |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| 4)) .cse2 (= 4 |c_~#top~0.base|) (not (= (+ (select (select |c_#memory_int| |c_~#top~0.base|) 0) 1) 0)) (or .cse3 (not (= c_~state~0 1))) .cse4 (or (not |c_thr1Thread2of3ForFork0_#t~switch18#1|) (and (or (and (or (forall ((|v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22| Int) (v_DerPreprocessor_24 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_ArrVal_1391) |v_thr1Thread3of3ForFork0_push_~#casret~0#1.base_22|) 0) 1) 0))) .cse1) (forall ((v_prenex_188 (Array Int Int)) (v_DerPreprocessor_24 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_24) |c_~#m2~0.base| v_prenex_188) |c_~#top~0.base|) 0) 1) 0)))) .cse0) (or .cse3 .cse5))))))) is different from false [2024-09-08 17:53:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 17:53:43,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:43,772 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-08 17:53:43,772 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:43,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:43,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1237967250, now seen corresponding path program 1 times [2024-09-08 17:53:43,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:43,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347422637] [2024-09-08 17:53:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:43,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 17:53:44,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347422637] [2024-09-08 17:53:44,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347422637] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:44,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350363936] [2024-09-08 17:53:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:44,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:44,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:44,252 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) [2024-09-08 17:53:44,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-08 17:53:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:44,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-08 17:53:44,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:44,536 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 11 treesize of output 7 [2024-09-08 17:53:44,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:44,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:44,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:44,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:44,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:44,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:44,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:44,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:44,914 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:44,915 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 17 treesize of output 13 [2024-09-08 17:53:45,180 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-09-08 17:53:45,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:53:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 17:53:45,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:45,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:45,369 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-09-08 17:53:45,370 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 33 treesize of output 25 [2024-09-08 17:53:45,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-09-08 17:53:45,539 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1525 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((v_ArrVal_1525 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) (not (= (+ c_~next_alloc_idx~0 2) 0)))) is different from false [2024-09-08 17:53:45,574 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 2) 0)))) (and (forall ((v_ArrVal_1525 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((v_ArrVal_1525 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (or (not (= c_~state~0 0)) (and (or (forall ((v_prenex_229 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_prenex_229) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (forall ((v_ArrVal_1525 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))))))) is different from false [2024-09-08 17:53:45,639 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 2) 0)))) (and (forall ((v_ArrVal_1525 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((v_ArrVal_1525 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (or (not (= c_~state~0 0)) (and (or (forall ((v_prenex_229 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_prenex_229) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (forall ((v_ArrVal_1525 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))))))) (= |c_thr1Thread1of3ForFork0_push_~newTop~0#1| 0)) is different from false [2024-09-08 17:53:45,662 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0) (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 2) 0)))) (and (forall ((v_ArrVal_1525 (Array Int Int))) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((v_ArrVal_1525 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (or (not (= c_~state~0 0)) (and (or (forall ((v_prenex_229 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_prenex_229) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (forall ((v_ArrVal_1525 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0)))))))) is different from false [2024-09-08 17:53:45,682 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0) (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 2) 0)))) (and (or .cse0 (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0)))) (or (not (= c_~state~0 0)) (and (or (forall ((v_prenex_229 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ 1 (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_prenex_229) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0)) 0))) .cse0) (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))))) (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0)))))) is different from false [2024-09-08 17:53:45,702 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse0 (not (= (+ c_~next_alloc_idx~0 4) 0)))) (and (or (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int)) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#m2~0.base| v_ArrVal_1525) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0) 1) 0))) .cse0) (or (and (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))) (or (forall ((v_prenex_229 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26| Int) (v_DerPreprocessor_28 (Array Int Int))) (not (= (+ 1 (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#top~0.base| v_DerPreprocessor_28) |c_~#m2~0.base| v_prenex_229) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_26|) 0)) 0))) .cse0)) (not (= c_~state~0 0))) (forall ((v_ArrVal_1525 (Array Int Int)) (v_ArrVal_1522 (Array Int Int))) (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1522) |c_~#m2~0.base| v_ArrVal_1525) |c_~#top~0.base|) 0) 1) 0))))) (= c_~next_alloc_idx~0 0)) is different from false [2024-09-08 17:53:45,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:53:45,837 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 1 case distinctions, treesize of input 12 treesize of output 8 [2024-09-08 17:53:45,891 INFO L349 Elim1Store]: treesize reduction 22, result has 60.0 percent of original size [2024-09-08 17:53:45,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 630 treesize of output 634 [2024-09-08 17:53:45,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 297 treesize of output 293 [2024-09-08 17:53:45,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 293 treesize of output 291 [2024-09-08 17:53:45,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 291 treesize of output 283 [2024-09-08 17:53:45,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 283 treesize of output 281 [2024-09-08 17:53:45,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 281 treesize of output 279 [2024-09-08 17:53:45,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 279 treesize of output 277 [2024-09-08 17:53:45,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 277 treesize of output 273 [2024-09-08 17:53:45,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 273 treesize of output 271 [2024-09-08 17:53:45,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 271 treesize of output 267 [2024-09-08 17:53:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 8 not checked. [2024-09-08 17:53:46,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350363936] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:46,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:46,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17, 17] total 40 [2024-09-08 17:53:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130770700] [2024-09-08 17:53:46,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:46,097 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-08 17:53:46,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-08 17:53:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1025, Unknown=13, NotChecked=426, Total=1640 [2024-09-08 17:53:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:46,099 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:46,099 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.512195121951219) internal successors, (185), 40 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:46,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 17:53:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-08 17:53:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-08 17:53:47,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:47,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-08 17:53:47,981 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:47,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:47,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1705770456, now seen corresponding path program 1 times [2024-09-08 17:53:47,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:47,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735414062] [2024-09-08 17:53:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 17:53:48,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:48,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735414062] [2024-09-08 17:53:48,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735414062] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:48,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594601378] [2024-09-08 17:53:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:48,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:48,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:48,150 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) [2024-09-08 17:53:48,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-08 17:53:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:48,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 17:53:48,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 17:53:48,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 17:53:48,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594601378] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:48,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:48,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-08 17:53:48,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260453144] [2024-09-08 17:53:48,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:48,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 17:53:48,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:48,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 17:53:48,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-08 17:53:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:48,642 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:48,642 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 12 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-08 17:53:48,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-08 17:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-08 17:53:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:48,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-08 17:53:49,023 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-08 17:53:49,023 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:49,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1993810281, now seen corresponding path program 1 times [2024-09-08 17:53:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:49,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385493006] [2024-09-08 17:53:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:49,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 17:53:49,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:49,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385493006] [2024-09-08 17:53:49,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385493006] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:49,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411779013] [2024-09-08 17:53:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:49,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:49,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:49,491 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) [2024-09-08 17:53:49,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-08 17:53:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:49,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-08 17:53:49,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:50,003 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 11 treesize of output 7 [2024-09-08 17:53:50,039 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:53:50,039 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 17 treesize of output 13 [2024-09-08 17:53:50,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:50,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-09-08 17:53:50,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-09-08 17:53:50,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:50,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-09-08 17:53:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:50,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-09-08 17:53:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:50,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-09-08 17:53:50,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-08 17:53:50,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2024-09-08 17:53:50,452 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 17:53:50,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:50,537 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1811 (Array Int Int)) (|~#m~0.offset| Int)) (or (= 0 (select (select (store |c_#memory_int| |c_~#m~0.base| (store v_ArrVal_1811 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|)) (= (select (select (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1811) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1))) is different from false [2024-09-08 17:53:50,615 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset|) |c_thr1Thread3of3ForFork0_push_~oldTop~0#1|))) (and (or (not .cse0) (and (or (not (= |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| |c_~#top~0.base|)) (forall ((v_ArrVal_1811 (Array Int Int)) (v_DerPreprocessor_32 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse1 (store |c_#memory_int| |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_32))) (or (= (select (select (store .cse1 |c_~#m~0.base| v_ArrVal_1811) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= (select (select (store .cse1 |c_~#m~0.base| (store v_ArrVal_1811 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0))))) (forall ((v_DerPreprocessor_30 (Array Int Int)) (v_DerPreprocessor_31 (Array Int Int)) (v_ArrVal_1811 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse2 (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_30) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_31))) (or (not (= (select .cse2 |c_~#top~0.base|) v_DerPreprocessor_30)) (= (select (select (store .cse2 |c_~#m~0.base| v_ArrVal_1811) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= (select (select (store .cse2 |c_~#m~0.base| (store v_ArrVal_1811 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0)))))) (or (forall ((v_ArrVal_1811 (Array Int Int)) (v_DerPreprocessor_29 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse3 (store |c_#memory_int| |c_thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_29))) (or (= (select (select (store .cse3 |c_~#m~0.base| v_ArrVal_1811) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= (select (select (store .cse3 |c_~#m~0.base| (store v_ArrVal_1811 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0)))) .cse0))) is different from false [2024-09-08 17:53:50,645 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 380 treesize of output 356 [2024-09-08 17:53:50,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 365 treesize of output 349 [2024-09-08 17:53:50,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 341 treesize of output 333 [2024-09-08 17:53:50,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 323 treesize of output 319 [2024-09-08 17:53:50,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 109 treesize of output 105 [2024-09-08 17:53:50,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 107 treesize of output 101 [2024-09-08 17:53:50,944 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 18 treesize of output 14 [2024-09-08 17:53:50,948 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 18 treesize of output 14 [2024-09-08 17:53:50,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-09-08 17:53:50,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 [2024-09-08 17:53:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 8 not checked. [2024-09-08 17:53:51,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411779013] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:51,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:51,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 19 [2024-09-08 17:53:51,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958858593] [2024-09-08 17:53:51,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:51,112 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-08 17:53:51,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:51,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-08 17:53:51,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=248, Unknown=2, NotChecked=66, Total=380 [2024-09-08 17:53:51,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:51,113 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:51,114 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.25) internal successors, (225), 19 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:51,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:51,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:51,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:51,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:51,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:51,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:51,411 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse9 (= c_~state~0 1))) (let ((.cse3 (not .cse9)) (.cse4 (not (= c_~state~0 0)))) (let ((.cse8 (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (let ((.cse19 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (or (not (= (+ (select (select (store .cse19 |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse20 (store (select (store (store .cse19 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse20) |c_~#top~0.base| (store (select (store (store .cse19 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse20) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))) (.cse14 (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse18 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse18 |c_~#top~0.base| (store (select .cse18 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse3))) (let ((.cse0 (= |c_thr1Thread1of3ForFork0_index_malloc_~curr_alloc_idx~0#1| 0)) (.cse1 (and .cse8 .cse14))) (and (or .cse0 .cse1) (= |c_~#top~0.offset| 0) (or (and (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse2 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse2 |c_~#top~0.base| (store (select .cse2 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse3) (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse6 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (let ((.cse5 (store (select (store (store .cse6 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse5) |c_~#top~0.base| (store (select (store (store .cse6 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse5) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0)))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))))) .cse0) (forall ((|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int)) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse7 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse7 |c_~#top~0.base| (store (select .cse7 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))) .cse8 .cse9 (or (= c_~next_alloc_idx~0 0) (let ((.cse12 (+ c_~next_alloc_idx~0 2))) (and (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse11 (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15))) (let ((.cse10 (store (select (store (store .cse11 |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse10) |c_~#top~0.base| (store (select (store (store .cse11 |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse10) |c_~#top~0.base|) |c_~#top~0.offset| .cse12)))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse4) (or (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int))) (or (not (= (+ (select (select (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1025) |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= 0 (select (select (store (let ((.cse13 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse13 |c_~#top~0.base| (store (select .cse13 |c_~#top~0.base|) |c_~#top~0.offset| .cse12))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|))))) .cse3)))) .cse14 (or .cse1 (= |c_thr1Thread1of3ForFork0_push_~newTop~0#1| 0)) (or (not |c_thr1Thread2of3ForFork0_#t~switch18#1|) (and (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (v_ArrVal_1028 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse15 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse15) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse15) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))) (forall ((v_ArrVal_1028 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int)) (or (not (= (+ (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1028) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store (let ((.cse16 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0)))) (store .cse16 |c_~#top~0.base| (store (select .cse16 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))) (or .cse4 (forall ((v_ArrVal_1029 (Array Int Int)) (|~#m2~0.offset| Int) (v_ArrVal_1032 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| Int) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20|) 0) 1) 0)) (not (= (select (select (store (let ((.cse17 (store (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1029) |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base|) |~#m2~0.offset| 0))) (store (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse17) |c_~#top~0.base| (store (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_14) |c_~#m~0.base| v_ArrVal_1032) |c_~#m2~0.base| .cse17) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_20| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))))))))) is different from false [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-08 17:53:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:52,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-08 17:53:52,885 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-08 17:53:52,885 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:52,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1680276672, now seen corresponding path program 1 times [2024-09-08 17:53:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:52,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538966584] [2024-09-08 17:53:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:52,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-08 17:53:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:53,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538966584] [2024-09-08 17:53:53,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538966584] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:53,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 17:53:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315919814] [2024-09-08 17:53:53,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:53,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 17:53:53,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:53,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 17:53:53,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 17:53:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:53,003 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:53,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:53,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:53,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:54,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-09-08 17:53:54,002 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:54,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash 331186436, now seen corresponding path program 1 times [2024-09-08 17:53:54,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:54,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286692069] [2024-09-08 17:53:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 17:53:54,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286692069] [2024-09-08 17:53:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286692069] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:53:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841244116] [2024-09-08 17:53:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:54,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:54,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:53:54,571 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) [2024-09-08 17:53:54,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-08 17:53:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:54,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-08 17:53:54,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:53:55,083 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-09-08 17:53:55,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-09-08 17:53:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:55,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:53:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 17:53:55,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841244116] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:53:55,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:53:55,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 7] total 27 [2024-09-08 17:53:55,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328507287] [2024-09-08 17:53:55,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:53:55,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-08 17:53:55,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:55,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-08 17:53:55,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=683, Unknown=4, NotChecked=0, Total=812 [2024-09-08 17:53:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:55,463 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:55,463 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 8.25) internal successors, (231), 28 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:55,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 17:53:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:55,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-08 17:53:57,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-08 17:53:57,612 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:53:57,612 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:57,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash 851494586, now seen corresponding path program 1 times [2024-09-08 17:53:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:57,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108851136] [2024-09-08 17:53:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:57,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-09-08 17:53:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:57,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108851136] [2024-09-08 17:53:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108851136] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:57,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:57,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 17:53:57,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669380497] [2024-09-08 17:53:57,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:57,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 17:53:57,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 17:53:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 17:53:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:57,902 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:57,902 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-09-08 17:53:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-08 17:53:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,644 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-09-08 17:53:58,644 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:58,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:58,645 INFO L85 PathProgramCache]: Analyzing trace with hash -781027698, now seen corresponding path program 1 times [2024-09-08 17:53:58,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:58,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005912884] [2024-09-08 17:53:58,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:58,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:58,883 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-09-08 17:53:58,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:58,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005912884] [2024-09-08 17:53:58,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005912884] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:58,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:58,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 17:53:58,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185351286] [2024-09-08 17:53:58,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:58,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 17:53:58,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:58,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 17:53:58,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 17:53:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:58,885 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:58,885 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:58,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:58,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:58,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-09-08 17:53:58,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:58,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-08 17:53:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:53:59,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-09-08 17:53:59,546 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:53:59,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:53:59,546 INFO L85 PathProgramCache]: Analyzing trace with hash -101135507, now seen corresponding path program 1 times [2024-09-08 17:53:59,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:53:59,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977077724] [2024-09-08 17:53:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:53:59,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:53:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:53:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-09-08 17:53:59,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:53:59,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977077724] [2024-09-08 17:53:59,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977077724] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 17:53:59,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 17:53:59,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 17:53:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332147973] [2024-09-08 17:53:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 17:53:59,687 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 17:53:59,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:53:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 17:53:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 17:53:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:53:59,687 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:53:59,687 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:53:59,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:53:59,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:53:59,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:00,214 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-09-08 17:54:00,214 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:54:00,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:54:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -175754505, now seen corresponding path program 1 times [2024-09-08 17:54:00,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:54:00,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28328427] [2024-09-08 17:54:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:00,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:54:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 306 proven. 251 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:00,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:54:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28328427] [2024-09-08 17:54:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28328427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:54:00,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016412188] [2024-09-08 17:54:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:00,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:00,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:54:00,730 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:54:00,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-08 17:54:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:01,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 17:54:01,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:54:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 306 proven. 251 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:01,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:54:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 306 proven. 251 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:01,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016412188] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:54:01,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:54:01,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-09-08 17:54:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364066056] [2024-09-08 17:54:01,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:54:01,717 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-08 17:54:01,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:54:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-08 17:54:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-09-08 17:54:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:01,719 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:54:01,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 24 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:01,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:01,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:02,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-08 17:54:02,709 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-08 17:54:02,709 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:54:02,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:54:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2004402377, now seen corresponding path program 2 times [2024-09-08 17:54:02,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:54:02,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591794694] [2024-09-08 17:54:02,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:02,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:54:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2269 backedges. 702 proven. 1445 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:54:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591794694] [2024-09-08 17:54:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591794694] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:54:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945820473] [2024-09-08 17:54:04,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 17:54:04,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:04,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:54:04,201 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:54:04,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-08 17:54:04,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 17:54:04,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 17:54:04,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-08 17:54:04,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:54:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2269 backedges. 702 proven. 1445 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:05,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:54:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2269 backedges. 702 proven. 1445 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:06,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945820473] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:54:06,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:54:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-09-08 17:54:06,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310733229] [2024-09-08 17:54:06,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:54:06,463 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-08 17:54:06,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:54:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-08 17:54:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-09-08 17:54:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:06,465 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:54:06,466 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 14.714285714285714) internal successors, (721), 48 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:54:06,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:06,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:06,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:06,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:06,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:06,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:06,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:54:08,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-08 17:54:08,329 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-08 17:54:08,329 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:54:08,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:54:08,330 INFO L85 PathProgramCache]: Analyzing trace with hash 82417591, now seen corresponding path program 3 times [2024-09-08 17:54:08,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:54:08,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822124128] [2024-09-08 17:54:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:08,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:54:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8473 backedges. 1494 proven. 6857 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:13,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:54:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822124128] [2024-09-08 17:54:13,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822124128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:54:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607986375] [2024-09-08 17:54:13,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 17:54:13,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:13,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:54:13,290 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:54:13,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-08 17:54:14,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-08 17:54:14,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 17:54:14,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-08 17:54:14,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:54:14,169 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 17:54:14,170 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 11 treesize of output 11 [2024-09-08 17:54:14,330 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-09-08 17:54:14,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-08 17:54:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8473 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 8460 trivial. 0 not checked. [2024-09-08 17:54:14,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:54:14,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 17:54:14,575 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-09-08 17:54:14,577 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 33 treesize of output 25 [2024-09-08 17:54:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8473 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 8460 trivial. 0 not checked. [2024-09-08 17:54:14,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607986375] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:54:14,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:54:14,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 9, 7] total 62 [2024-09-08 17:54:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187595477] [2024-09-08 17:54:14,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:54:14,803 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-09-08 17:54:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:54:14,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-09-08 17:54:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1310, Invalid=2595, Unknown=1, NotChecked=0, Total=3906 [2024-09-08 17:54:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:14,806 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:54:14,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 12.53968253968254) internal successors, (790), 62 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:54:14,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:54:18,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:18,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-08 17:54:18,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,25 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:18,402 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:54:18,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:54:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2059965143, now seen corresponding path program 1 times [2024-09-08 17:54:18,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:54:18,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814326846] [2024-09-08 17:54:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:18,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:54:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 1494 proven. 6871 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:54:23,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814326846] [2024-09-08 17:54:23,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814326846] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:54:23,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745614732] [2024-09-08 17:54:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:23,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:23,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:54:23,166 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:54:23,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-08 17:54:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:24,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 4616 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-08 17:54:24,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:54:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 1494 proven. 6871 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:25,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:54:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 1494 proven. 6871 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-08 17:54:28,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745614732] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:54:28,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:54:28,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 98 [2024-09-08 17:54:28,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780797277] [2024-09-08 17:54:28,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:54:28,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-09-08 17:54:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:54:28,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-09-08 17:54:28,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2024-09-08 17:54:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:28,440 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:54:28,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 14.353535353535353) internal successors, (1421), 98 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:54:28,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:28,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:28,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:54:28,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:28,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:54:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:54:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-09-08 17:54:34,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-08 17:54:34,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-08 17:54:34,828 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:54:34,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:54:34,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2042149067, now seen corresponding path program 1 times [2024-09-08 17:54:34,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:54:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612742249] [2024-09-08 17:54:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:34,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:54:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 31391 backedges. 1311 proven. 30070 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:54:52,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:54:52,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612742249] [2024-09-08 17:54:52,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612742249] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:54:52,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403745752] [2024-09-08 17:54:52,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:54:52,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:54:52,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:54:52,180 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:54:52,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-08 17:54:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:54:54,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 8351 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-09-08 17:54:54,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:54:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 31391 backedges. 1311 proven. 30070 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:54:55,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:55:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 31391 backedges. 1311 proven. 30070 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:55:07,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403745752] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:55:07,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:55:07,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 196 [2024-09-08 17:55:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263389399] [2024-09-08 17:55:07,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:55:07,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2024-09-08 17:55:07,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:55:07,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2024-09-08 17:55:07,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2024-09-08 17:55:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:55:07,676 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:55:07,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 14.091370558375635) internal successors, (2776), 196 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:55:07,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2024-09-08 17:55:07,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:55:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-09-08 17:55:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-09-08 17:55:54,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-08 17:55:54,376 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-08 17:55:54,377 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 17:55:54,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 17:55:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 58475307, now seen corresponding path program 2 times [2024-09-08 17:55:54,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 17:55:54,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351775138] [2024-09-08 17:55:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 17:55:54,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 17:55:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 17:57:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 129930 backedges. 2683 proven. 127237 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:57:08,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 17:57:08,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351775138] [2024-09-08 17:57:08,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351775138] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 17:57:08,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900897145] [2024-09-08 17:57:08,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 17:57:08,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 17:57:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 17:57:08,588 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 17:57:08,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-08 17:57:12,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 17:57:12,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 17:57:12,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 16485 conjuncts, 196 conjuncts are in the unsatisfiable core [2024-09-08 17:57:12,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 17:57:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 129930 backedges. 2683 proven. 127237 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:57:15,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 17:57:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 129930 backedges. 2683 proven. 127237 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 17:57:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900897145] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 17:57:59,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 17:57:59,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [196, 196, 196] total 392 [2024-09-08 17:57:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454583613] [2024-09-08 17:57:59,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 17:57:59,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 393 states [2024-09-08 17:57:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 17:57:59,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 393 interpolants. [2024-09-08 17:57:59,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77028, Invalid=77028, Unknown=0, NotChecked=0, Total=154056 [2024-09-08 17:57:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 17:57:59,814 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 17:57:59,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 393 states, 393 states have (on average 14.045801526717558) internal successors, (5520), 392 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 17:57:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2024-09-08 17:57:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15