./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-three-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-three-array-sum.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-22 19:29:20,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 19:29:20,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 19:29:20,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 19:29:20,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 19:29:20,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 19:29:20,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 19:29:20,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 19:29:20,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 19:29:20,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 19:29:20,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 19:29:20,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 19:29:20,265 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 19:29:20,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 19:29:20,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 19:29:20,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 19:29:20,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 19:29:20,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 19:29:20,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 19:29:20,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 19:29:20,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 19:29:20,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 19:29:20,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 19:29:20,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 19:29:20,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 19:29:20,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 19:29:20,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 19:29:20,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 19:29:20,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 19:29:20,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 19:29:20,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 19:29:20,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 19:29:20,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 19:29:20,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 19:29:20,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 19:29:20,274 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 19:29:20,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 19:29:20,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 19:29:20,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 19:29:20,275 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 19:29:20,276 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 19:29:20,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-22 19:29:20,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 19:29:20,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 19:29:20,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 19:29:20,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 19:29:20,555 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 19:29:20,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-09-22 19:29:21,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 19:29:22,121 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 19:29:22,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-09-22 19:29:22,129 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/31ebcee6b/2076d4cfaef84e8f980631b36a12e1a8/FLAG00915c419 [2024-09-22 19:29:22,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/31ebcee6b/2076d4cfaef84e8f980631b36a12e1a8 [2024-09-22 19:29:22,143 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-22 19:29:22,144 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-22 19:29:22,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-three-array-sum.wvr.yml/witness.yml [2024-09-22 19:29:22,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 19:29:22,211 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-22 19:29:22,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 19:29:22,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 19:29:22,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 19:29:22,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 07:29:22" (1/2) ... [2024-09-22 19:29:22,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d28f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:29:22, skipping insertion in model container [2024-09-22 19:29:22,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 07:29:22" (1/2) ... [2024-09-22 19:29:22,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c559288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:29:22, skipping insertion in model container [2024-09-22 19:29:22,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 07:29:22" (2/2) ... [2024-09-22 19:29:22,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d28f9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22, skipping insertion in model container [2024-09-22 19:29:22,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 07:29:22" (2/2) ... [2024-09-22 19:29:22,237 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-22 19:29:22,238 INFO L1541 ArrayList]: Location invariant before [L95-L95] ((! multithreaded || ((1073741823LL + (long long )N) - (long long )p >= 0LL && (2147483646LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-22 19:29:22,238 INFO L1541 ArrayList]: Location invariant before [L97-L97] ((! multithreaded || ((1073741823LL + (long long )N) - (long long )p >= 0LL && (2147483646LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-22 19:29:22,238 INFO L1541 ArrayList]: Location invariant before [L96-L96] ((! multithreaded || ((1073741823LL + (long long )N) - (long long )p >= 0LL && (2147483646LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-22 19:29:22,238 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-22 19:29:22,239 INFO L1541 ArrayList]: ghost_update [L94-L94] multithreaded = 1; [2024-09-22 19:29:22,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 19:29:22,459 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-09-22 19:29:22,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 19:29:22,486 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-22 19:29:22,589 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-09-22 19:29:22,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 19:29:22,607 INFO L204 MainTranslator]: Completed translation [2024-09-22 19:29:22,607 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22 WrapperNode [2024-09-22 19:29:22,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 19:29:22,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 19:29:22,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 19:29:22,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 19:29:22,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,643 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 147 [2024-09-22 19:29:22,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 19:29:22,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 19:29:22,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 19:29:22,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 19:29:22,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 19:29:22,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 19:29:22,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 19:29:22,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 19:29:22,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (1/1) ... [2024-09-22 19:29:22,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 19:29:22,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:22,718 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) [2024-09-22 19:29:22,721 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 [2024-09-22 19:29:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 19:29:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-22 19:29:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-22 19:29:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-22 19:29:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-22 19:29:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-22 19:29:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-22 19:29:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 19:29:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-22 19:29:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-22 19:29:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-22 19:29:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-22 19:29:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 19:29:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 19:29:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-22 19:29:22,762 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-22 19:29:22,848 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 19:29:22,850 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 19:29:23,160 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 19:29:23,160 INFO L291 CfgBuilder]: Performing block encoding [2024-09-22 19:29:23,434 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-22 19:29:23,435 INFO L318 CfgBuilder]: Removed 6 assume(true) statements. [2024-09-22 19:29:23,435 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 07:29:23 BoogieIcfgContainer [2024-09-22 19:29:23,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-22 19:29:23,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-22 19:29:23,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-22 19:29:23,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-22 19:29:23,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 07:29:22" (1/4) ... [2024-09-22 19:29:23,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217663f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 07:29:23, skipping insertion in model container [2024-09-22 19:29:23,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 07:29:22" (2/4) ... [2024-09-22 19:29:23,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217663f0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.09 07:29:23, skipping insertion in model container [2024-09-22 19:29:23,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:29:22" (3/4) ... [2024-09-22 19:29:23,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217663f0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.09 07:29:23, skipping insertion in model container [2024-09-22 19:29:23,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 07:29:23" (4/4) ... [2024-09-22 19:29:23,445 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-09-22 19:29:23,461 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-22 19:29:23,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-22 19:29:23,461 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-22 19:29:23,507 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-22 19:29:23,543 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 19:29:23,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 19:29:23,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:23,546 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) [2024-09-22 19:29:23,548 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 [2024-09-22 19:29:23,586 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 19:29:23,598 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-22 19:29:23,604 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;@38af650b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 19:29:23,607 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-22 19:29:23,707 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:23,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:23,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1795079421, now seen corresponding path program 1 times [2024-09-22 19:29:23,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:23,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420035107] [2024-09-22 19:29:23,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 19:29:24,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:24,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420035107] [2024-09-22 19:29:24,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420035107] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 19:29:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 19:29:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 19:29:24,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757227861] [2024-09-22 19:29:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 19:29:24,252 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 19:29:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:24,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 19:29:24,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 19:29:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:24,272 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:24,272 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-09-22 19:29:24,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:24,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:24,329 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-22 19:29:24,329 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:24,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1963682807, now seen corresponding path program 1 times [2024-09-22 19:29:24,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:24,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437987782] [2024-09-22 19:29:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:24,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 19:29:24,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:24,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437987782] [2024-09-22 19:29:24,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437987782] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:24,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284920922] [2024-09-22 19:29:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:24,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:24,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:24,458 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) [2024-09-22 19:29:24,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-22 19:29:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:24,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-22 19:29:24,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 19:29:24,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 19:29:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284920922] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:24,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-22 19:29:24,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-09-22 19:29:24,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953292732] [2024-09-22 19:29:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 19:29:24,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-22 19:29:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:24,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-22 19:29:24,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-22 19:29:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:24,696 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:24,696 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-22 19:29:24,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:24,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:24,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-22 19:29:24,956 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 [2024-09-22 19:29:24,957 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:24,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash -262925087, now seen corresponding path program 1 times [2024-09-22 19:29:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:24,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440059143] [2024-09-22 19:29:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:24,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-22 19:29:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:25,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440059143] [2024-09-22 19:29:25,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440059143] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:25,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421353521] [2024-09-22 19:29:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:25,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:25,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:25,239 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) [2024-09-22 19:29:25,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-22 19:29:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:25,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-22 19:29:25,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-22 19:29:25,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-22 19:29:25,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421353521] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 19:29:25,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 19:29:25,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-09-22 19:29:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760188485] [2024-09-22 19:29:25,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 19:29:25,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-22 19:29:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-22 19:29:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-22 19:29:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:25,522 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:25,522 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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) [2024-09-22 19:29:25,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:25,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:25,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:25,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-22 19:29:26,157 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 [2024-09-22 19:29:26,158 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:26,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:26,158 INFO L85 PathProgramCache]: Analyzing trace with hash -25738045, now seen corresponding path program 1 times [2024-09-22 19:29:26,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:26,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663536090] [2024-09-22 19:29:26,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:26,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-22 19:29:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663536090] [2024-09-22 19:29:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663536090] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147078242] [2024-09-22 19:29:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:26,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:26,399 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) [2024-09-22 19:29:26,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-22 19:29:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:26,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-22 19:29:26,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-22 19:29:26,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-22 19:29:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147078242] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 19:29:26,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 19:29:26,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-22 19:29:26,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285519926] [2024-09-22 19:29:26,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 19:29:26,649 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-22 19:29:26,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-22 19:29:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-09-22 19:29:26,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:26,652 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:26,652 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-22 19:29:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:26,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:26,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-22 19:29:27,078 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 [2024-09-22 19:29:27,079 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:27,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash 542398061, now seen corresponding path program 2 times [2024-09-22 19:29:27,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:27,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821726672] [2024-09-22 19:29:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-22 19:29:27,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:27,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821726672] [2024-09-22 19:29:27,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821726672] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:27,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634924144] [2024-09-22 19:29:27,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 19:29:27,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:27,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:27,330 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) [2024-09-22 19:29:27,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-22 19:29:27,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-22 19:29:27,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 19:29:27,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-22 19:29:27,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-22 19:29:27,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-22 19:29:27,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634924144] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 19:29:27,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 19:29:27,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-09-22 19:29:27,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404929457] [2024-09-22 19:29:27,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 19:29:27,760 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-22 19:29:27,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:27,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-22 19:29:27,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-09-22 19:29:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:27,761 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:27,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 20 states have internal predecessors, (119), 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) [2024-09-22 19:29:27,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:27,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:27,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:27,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:27,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:28,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-22 19:29:28,270 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 [2024-09-22 19:29:28,271 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:28,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:28,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2023815159, now seen corresponding path program 3 times [2024-09-22 19:29:28,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:28,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710172688] [2024-09-22 19:29:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:28,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-22 19:29:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710172688] [2024-09-22 19:29:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710172688] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677338786] [2024-09-22 19:29:28,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-22 19:29:28,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:28,511 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) [2024-09-22 19:29:28,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-22 19:29:28,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-22 19:29:28,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 19:29:28,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-22 19:29:28,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-22 19:29:28,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-22 19:29:28,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677338786] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 19:29:28,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 19:29:28,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-09-22 19:29:28,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605067632] [2024-09-22 19:29:28,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 19:29:28,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-22 19:29:28,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-22 19:29:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-22 19:29:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:28,952 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:28,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.947368421052632) internal successors, (113), 18 states have internal predecessors, (113), 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) [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:28,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 19:29:29,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-22 19:29:29,408 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 [2024-09-22 19:29:29,409 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:29,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash 466853413, now seen corresponding path program 4 times [2024-09-22 19:29:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:29,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719413024] [2024-09-22 19:29:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-22 19:29:29,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719413024] [2024-09-22 19:29:29,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719413024] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780665890] [2024-09-22 19:29:29,678 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-22 19:29:29,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:29,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:29,682 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) [2024-09-22 19:29:29,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-22 19:29:29,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-22 19:29:29,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 19:29:29,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-22 19:29:29,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-22 19:29:30,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 19:29:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-22 19:29:30,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780665890] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 19:29:30,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 19:29:30,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 6] total 22 [2024-09-22 19:29:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156166573] [2024-09-22 19:29:30,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 19:29:30,105 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-22 19:29:30,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 19:29:30,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-22 19:29:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-09-22 19:29:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:30,107 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 19:29:30,107 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 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) [2024-09-22 19:29:30,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:30,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:30,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:30,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:30,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:30,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 19:29:30,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-22 19:29:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 19:29:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-22 19:29:30,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-22 19:29:30,777 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 [2024-09-22 19:29:30,778 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-22 19:29:30,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 19:29:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash -331163463, now seen corresponding path program 5 times [2024-09-22 19:29:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 19:29:30,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187595207] [2024-09-22 19:29:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 19:29:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 19:29:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 19:29:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-22 19:29:38,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 19:29:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187595207] [2024-09-22 19:29:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187595207] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 19:29:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856495049] [2024-09-22 19:29:38,149 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-22 19:29:38,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 19:29:38,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:29:38,151 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) [2024-09-22 19:29:38,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-22 19:29:38,629 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-09-22 19:29:38,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 19:29:38,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-09-22 19:29:38,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 19:29:39,309 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-09-22 19:29:39,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2024-09-22 19:29:40,440 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-09-22 19:29:40,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 121 treesize of output 144 [2024-09-22 19:29:43,030 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-09-22 19:29:43,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 53 case distinctions, treesize of input 302 treesize of output 314 [2024-09-22 19:29:50,348 INFO L349 Elim1Store]: treesize reduction 688, result has 23.0 percent of original size [2024-09-22 19:29:50,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 10 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 117 case distinctions, treesize of input 942 treesize of output 665 [2024-09-22 19:37:27,341 WARN L293 SmtUtils]: Spent 7.41m on a formula simplification. DAG size of input: 5186 DAG size of output: 4290 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-09-22 19:37:27,344 INFO L349 Elim1Store]: treesize reduction 5712, result has 69.8 percent of original size [2024-09-22 19:37:27,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 122 select indices, 122 select index equivalence classes, 15 disjoint index pairs (out of 7381 index pairs), introduced 122 new quantified variables, introduced 7381 case distinctions, treesize of input 2769 treesize of output 14317 Killed by 15