./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/fib_safe-12.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-ghost/fib_safe-12.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/fib_safe-12.i ./goblint.2024-09-02_08-21-23.files/protection-ghost/fib_safe-12.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 11:54:38,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 11:54:38,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 11:54:38,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 11:54:38,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 11:54:38,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 11:54:38,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 11:54:38,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 11:54:38,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 11:54:38,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 11:54:38,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 11:54:38,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 11:54:38,758 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 11:54:38,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 11:54:38,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 11:54:38,761 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 11:54:38,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 11:54:38,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 11:54:38,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 11:54:38,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 11:54:38,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 11:54:38,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 11:54:38,767 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 11:54:38,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 11:54:38,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 11:54:38,768 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 11:54:38,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 11:54:38,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 11:54:38,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 11:54:38,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 11:54:38,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 11:54:38,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 11:54:38,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 11:54:38,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 11:54:38,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 11:54:38,770 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 11:54:38,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 11:54:38,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 11:54:38,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 11:54:38,773 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 11:54:38,774 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 11:54:38,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 11:54:39,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 11:54:39,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 11:54:39,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 11:54:39,078 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 11:54:39,079 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 11:54:39,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/fib_safe-12.yml/witness.yml [2024-09-08 11:54:39,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 11:54:39,179 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 11:54:39,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_safe-12.i [2024-09-08 11:54:40,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 11:54:40,868 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 11:54:40,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-12.i [2024-09-08 11:54:40,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/38272a054/67c7fb9873094bc89f3d292b6a3ce8cc/FLAG20c163bf1 [2024-09-08 11:54:40,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/38272a054/67c7fb9873094bc89f3d292b6a3ce8cc [2024-09-08 11:54:40,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 11:54:40,895 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 11:54:40,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 11:54:40,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 11:54:40,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 11:54:40,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:54:39" (1/2) ... [2024-09-08 11:54:40,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a45640 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:54:40, skipping insertion in model container [2024-09-08 11:54:40,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:54:39" (1/2) ... [2024-09-08 11:54:40,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66b231c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 11:54:40, skipping insertion in model container [2024-09-08 11:54:40,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:54:40" (2/2) ... [2024-09-08 11:54:40,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a45640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:40, skipping insertion in model container [2024-09-08 11:54:40,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:54:40" (2/2) ... [2024-09-08 11:54:40,948 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 11:54:40,948 INFO L1541 ArrayList]: Location invariant before [L722-L722] (((((((! multithreaded || 0 <= x) && (! multithreaded || 0 <= q)) && (! multithreaded || 0 <= next)) && (! multithreaded || 0 <= prev)) && (! multithreaded || 0 <= cur)) && (! multithreaded || 0 <= p)) && (! multithreaded || 1 <= j)) && (! multithreaded || 1 <= i) [2024-09-08 11:54:40,948 INFO L1541 ArrayList]: Location invariant before [L721-L721] (((((((! multithreaded || 0 <= x) && (! multithreaded || 0 <= q)) && (! multithreaded || 0 <= next)) && (! multithreaded || 0 <= prev)) && (! multithreaded || 0 <= cur)) && (! multithreaded || 0 <= p)) && (! multithreaded || 1 <= j)) && (! multithreaded || 1 <= i) [2024-09-08 11:54:40,949 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 11:54:40,949 INFO L1541 ArrayList]: ghost_update [L720-L720] multithreaded = 1; [2024-09-08 11:54:40,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 11:54:41,320 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/fib_safe-12.i[30241,30254] [2024-09-08 11:54:41,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 11:54:41,360 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-08 11:54:41,440 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/fib_safe-12.i[30241,30254] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 11:54:41,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 11:54:41,493 INFO L204 MainTranslator]: Completed translation [2024-09-08 11:54:41,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41 WrapperNode [2024-09-08 11:54:41,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 11:54:41,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 11:54:41,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 11:54:41,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 11:54:41,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,545 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-09-08 11:54:41,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 11:54:41,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 11:54:41,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 11:54:41,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 11:54:41,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 11:54:41,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 11:54:41,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 11:54:41,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 11:54:41,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (1/1) ... [2024-09-08 11:54:41,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 11:54:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:41,613 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 11:54:41,615 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 11:54:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 11:54:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 11:54:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 11:54:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 11:54:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 11:54:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 11:54:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 11:54:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 11:54:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 11:54:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 11:54:41,661 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 11:54:41,787 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 11:54:41,789 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 11:54:41,960 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 11:54:41,961 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 11:54:42,065 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 11:54:42,066 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 11:54:42,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:54:42 BoogieIcfgContainer [2024-09-08 11:54:42,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 11:54:42,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 11:54:42,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 11:54:42,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 11:54:42,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 11:54:39" (1/4) ... [2024-09-08 11:54:42,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34815a05 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 11:54:42, skipping insertion in model container [2024-09-08 11:54:42,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:54:40" (2/4) ... [2024-09-08 11:54:42,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34815a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:54:42, skipping insertion in model container [2024-09-08 11:54:42,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:54:41" (3/4) ... [2024-09-08 11:54:42,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34815a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:54:42, skipping insertion in model container [2024-09-08 11:54:42,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:54:42" (4/4) ... [2024-09-08 11:54:42,076 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-12.i [2024-09-08 11:54:42,096 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 11:54:42,096 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-08 11:54:42,096 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 11:54:42,139 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-08 11:54:42,185 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 11:54:42,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 11:54:42,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:42,188 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 11:54:42,190 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 11:54:42,228 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 11:54:42,242 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 11:54:42,249 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;@621b4470, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 11:54:42,252 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-08 11:54:42,362 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:42,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:42,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1845094729, now seen corresponding path program 1 times [2024-09-08 11:54:42,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:42,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543652552] [2024-09-08 11:54:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:42,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:43,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:43,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543652552] [2024-09-08 11:54:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543652552] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 11:54:43,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 11:54:43,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 11:54:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788914680] [2024-09-08 11:54:43,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 11:54:43,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 11:54:43,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:43,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 11:54:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-08 11:54:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:43,150 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:43,151 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 11:54:43,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:43,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:43,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 11:54:43,360 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:43,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1503559935, now seen corresponding path program 1 times [2024-09-08 11:54:43,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:43,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819028655] [2024-09-08 11:54:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:43,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819028655] [2024-09-08 11:54:43,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819028655] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:43,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230165211] [2024-09-08 11:54:43,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:43,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:43,522 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 11:54:43,524 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 11:54:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:43,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 11:54:43,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:43,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:54:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:43,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230165211] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:54:43,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:54:43,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-08 11:54:43,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10569705] [2024-09-08 11:54:43,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:54:43,827 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-08 11:54:43,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-08 11:54:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-08 11:54:43,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:43,831 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:43,832 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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 11:54:43,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:43,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:43,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:44,011 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 11:54:44,196 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 11:54:44,197 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:44,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -962194385, now seen corresponding path program 2 times [2024-09-08 11:54:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:44,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534424343] [2024-09-08 11:54:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:44,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:44,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:44,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534424343] [2024-09-08 11:54:44,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534424343] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:44,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782563653] [2024-09-08 11:54:44,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 11:54:44,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:44,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:44,435 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 11:54:44,436 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 11:54:44,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 11:54:44,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 11:54:44,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 11:54:44,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:44,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:54:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782563653] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:54:44,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:54:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-09-08 11:54:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038436776] [2024-09-08 11:54:44,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:54:44,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 11:54:44,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:44,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 11:54:44,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-08 11:54:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:44,809 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:44,809 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 17 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 11:54:44,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:44,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:44,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:45,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 11:54:45,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:45,231 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:45,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash -176938577, now seen corresponding path program 3 times [2024-09-08 11:54:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:45,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999138169] [2024-09-08 11:54:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:45,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:45,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:45,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999138169] [2024-09-08 11:54:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999138169] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:45,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874548730] [2024-09-08 11:54:45,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 11:54:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:45,795 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 11:54:45,797 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 11:54:45,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-08 11:54:45,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 11:54:45,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 11:54:45,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 735 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:46,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 11:54:46,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874548730] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 11:54:46,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 11:54:46,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 32 [2024-09-08 11:54:46,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166813968] [2024-09-08 11:54:46,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 11:54:46,330 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 11:54:46,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 11:54:46,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-08 11:54:46,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:46,332 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:46,332 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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 11:54:46,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:46,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:46,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:46,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:46,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 11:54:46,767 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:46,768 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:46,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1019226627, now seen corresponding path program 1 times [2024-09-08 11:54:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:46,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765979464] [2024-09-08 11:54:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:46,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:47,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:47,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765979464] [2024-09-08 11:54:47,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765979464] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:47,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330319437] [2024-09-08 11:54:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:47,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:47,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:47,249 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 11:54:47,250 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 11:54:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:47,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-08 11:54:47,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 11:54:47,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 11:54:47,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330319437] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 11:54:47,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 11:54:47,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2024-09-08 11:54:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171103827] [2024-09-08 11:54:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 11:54:47,699 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-08 11:54:47,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-08 11:54:47,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-09-08 11:54:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:47,701 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:47,701 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 11:54:47,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:47,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:47,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:47,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:47,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:47,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-08 11:54:48,134 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:48,135 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:48,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:48,135 INFO L85 PathProgramCache]: Analyzing trace with hash -373821585, now seen corresponding path program 1 times [2024-09-08 11:54:48,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:48,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527864438] [2024-09-08 11:54:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:48,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:48,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:48,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527864438] [2024-09-08 11:54:48,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527864438] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:48,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655006982] [2024-09-08 11:54:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:48,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:48,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:48,486 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 11:54:48,488 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 11:54:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:48,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 11:54:48,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:48,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:54:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655006982] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:54:49,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:54:49,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 29 [2024-09-08 11:54:49,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921479675] [2024-09-08 11:54:49,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:54:49,154 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-08 11:54:49,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:54:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-08 11:54:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2024-09-08 11:54:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:49,156 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:54:49,156 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.793103448275862) internal successors, (197), 29 states have internal predecessors, (197), 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 11:54:49,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:49,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:49,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:49,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:49,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:49,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:54:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:54:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:54:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:54:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:54:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:54:49,325 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 11:54:49,513 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:49,514 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:54:49,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:54:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2095510289, now seen corresponding path program 2 times [2024-09-08 11:54:49,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:54:49,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405208681] [2024-09-08 11:54:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:54:49,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:54:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:54:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:53,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:54:53,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405208681] [2024-09-08 11:54:53,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405208681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:54:53,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062420021] [2024-09-08 11:54:53,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 11:54:53,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:54:53,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:54:53,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 11:54:53,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 11:54:54,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 11:54:54,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 11:54:54,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-09-08 11:54:54,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:54:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 91 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:54:58,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:55:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:55:04,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062420021] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:55:04,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:55:04,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-09-08 11:55:04,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042128576] [2024-09-08 11:55:04,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:55:04,902 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-09-08 11:55:04,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:55:04,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-09-08 11:55:04,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2535, Invalid=25857, Unknown=0, NotChecked=0, Total=28392 [2024-09-08 11:55:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:55:04,914 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:55:04,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.1183431952662723) internal successors, (358), 168 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 11:55:04,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:55:04,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:55:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:55:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2024-09-08 11:55:59,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 11:56:00,110 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-08 11:56:00,110 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:56:00,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:56:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash 915464729, now seen corresponding path program 3 times [2024-09-08 11:56:00,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:56:00,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685485866] [2024-09-08 11:56:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:56:00,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:56:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:56:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:56:03,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:56:03,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685485866] [2024-09-08 11:56:03,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685485866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:56:03,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818219812] [2024-09-08 11:56:03,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 11:56:03,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:56:03,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:56:03,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 11:56:03,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 11:56:03,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-09-08 11:56:03,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 11:56:03,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-09-08 11:56:03,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:56:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:56:08,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:56:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:56:13,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818219812] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:56:13,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:56:13,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-09-08 11:56:13,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274764881] [2024-09-08 11:56:13,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:56:13,772 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-09-08 11:56:13,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:56:13,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-09-08 11:56:13,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2471, Invalid=25921, Unknown=0, NotChecked=0, Total=28392 [2024-09-08 11:56:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:56:13,780 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:56:13,780 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.1183431952662723) internal successors, (358), 168 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 11:56:13,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:56:13,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:56:13,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:56:13,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:56:13,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:56:13,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:56:13,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 183 states. [2024-09-08 11:56:13,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:58:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:58:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:58:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:58:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:58:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:58:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:58:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2024-09-08 11:58:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2024-09-08 11:58:20,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-08 11:58:20,504 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:58:20,504 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 11:58:20,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 11:58:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2086978799, now seen corresponding path program 4 times [2024-09-08 11:58:20,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 11:58:20,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876592803] [2024-09-08 11:58:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 11:58:20,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 11:58:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 11:58:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:58:23,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 11:58:23,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876592803] [2024-09-08 11:58:23,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876592803] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 11:58:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216747415] [2024-09-08 11:58:23,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 11:58:23,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 11:58:23,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 11:58:23,863 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 11:58:23,865 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 11:58:23,957 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 11:58:23,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 11:58:23,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-09-08 11:58:23,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 11:58:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 91 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:58:28,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 11:58:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 11:58:33,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216747415] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 11:58:33,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 11:58:33,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-09-08 11:58:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859076633] [2024-09-08 11:58:33,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 11:58:33,828 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-09-08 11:58:33,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 11:58:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-09-08 11:58:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2503, Invalid=25889, Unknown=0, NotChecked=0, Total=28392 [2024-09-08 11:58:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 11:58:33,834 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 11:58:33,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.1183431952662723) internal successors, (358), 168 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2024-09-08 11:58:33,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-09-08 12:00:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2024-09-08 12:00:04,190 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 12:00:04,378 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:00:04,378 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 12:00:04,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:00:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1736854383, now seen corresponding path program 5 times [2024-09-08 12:00:04,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:00:04,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960520120] [2024-09-08 12:00:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:00:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:00:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:00:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:00:07,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:00:07,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960520120] [2024-09-08 12:00:07,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960520120] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:00:07,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317703767] [2024-09-08 12:00:07,561 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 12:00:07,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:00:07,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:00:07,562 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 12:00:07,563 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 12:00:07,663 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-09-08 12:00:07,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:00:07,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-09-08 12:00:07,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:00:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:00:11,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:00:17,450 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:00:17,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317703767] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:00:17,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:00:17,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-09-08 12:00:17,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262525523] [2024-09-08 12:00:17,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:00:17,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-09-08 12:00:17,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:00:17,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-09-08 12:00:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2539, Invalid=25853, Unknown=0, NotChecked=0, Total=28392 [2024-09-08 12:00:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:00:17,457 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:00:17,457 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.1183431952662723) internal successors, (358), 168 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 235 states. [2024-09-08 12:00:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:03:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 328 states. [2024-09-08 12:03:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2024-09-08 12:03:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2024-09-08 12:03:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2024-09-08 12:03:25,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-08 12:03:25,439 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,SelfDestructingSolverStorable9 [2024-09-08 12:03:25,440 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 12:03:25,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:03:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash 897707557, now seen corresponding path program 6 times [2024-09-08 12:03:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:03:25,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981103190] [2024-09-08 12:03:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:03:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:03:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:03:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:03:28,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:03:28,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981103190] [2024-09-08 12:03:28,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981103190] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:03:28,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116548391] [2024-09-08 12:03:28,547 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 12:03:28,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:03:28,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:03:28,548 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 12:03:28,549 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 12:03:28,654 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-08 12:03:28,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:03:28,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-09-08 12:03:28,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:03:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:03:32,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:03:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:03:38,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116548391] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:03:38,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:03:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-09-08 12:03:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472902390] [2024-09-08 12:03:38,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:03:38,570 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-09-08 12:03:38,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:03:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-09-08 12:03:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2486, Invalid=25906, Unknown=0, NotChecked=0, Total=28392 [2024-09-08 12:03:38,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:03:38,573 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:03:38,574 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.1183431952662723) internal successors, (358), 168 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 328 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2024-09-08 12:03:38,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2024-09-08 12:03:38,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2024-09-08 12:03:38,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15