./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.2024-06-19_11-23-25.files/protection/popl20-three-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca 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.2024-06-19_11-23-25.files/protection/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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-17 11:15:27,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 11:15:27,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 11:15:27,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 11:15:27,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 11:15:27,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 11:15:27,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 11:15:27,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 11:15:27,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 11:15:27,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 11:15:27,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 11:15:27,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 11:15:27,084 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 11:15:27,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 11:15:27,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 11:15:27,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 11:15:27,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 11:15:27,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 11:15:27,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 11:15:27,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 11:15:27,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 11:15:27,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 11:15:27,091 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 11:15:27,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 11:15:27,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 11:15:27,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 11:15:27,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 11:15:27,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 11:15:27,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 11:15:27,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 11:15:27,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 11:15:27,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 11:15:27,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 11:15:27,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 11:15:27,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 11:15:27,097 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 11:15:27,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 11:15:27,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 11:15:27,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 11:15:27,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 11:15:27,098 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 11:15:27,098 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 11:15:27,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-17 11:15:27,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 11:15:27,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 11:15:27,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 11:15:27,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 11:15:27,377 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 11:15:27,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-07-17 11:15:28,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 11:15:28,489 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 11:15:28,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-07-17 11:15:28,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dffc42c8c/0e13cb4104f942d283f4c60012f89a94/FLAGd06650afe [2024-07-17 11:15:28,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dffc42c8c/0e13cb4104f942d283f4c60012f89a94 [2024-07-17 11:15:28,522 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-17 11:15:28,525 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-17 11:15:28,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/protection/popl20-three-array-sum.wvr.yml/witness.yml [2024-07-17 11:15:28,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 11:15:28,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 11:15:28,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 11:15:28,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 11:15:28,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 11:15:28,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:15:28" (1/2) ... [2024-07-17 11:15:28,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640916b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:15:28, skipping insertion in model container [2024-07-17 11:15:28,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:15:28" (1/2) ... [2024-07-17 11:15:28,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@564a849f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:15:28, skipping insertion in model container [2024-07-17 11:15:28,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:15:28" (2/2) ... [2024-07-17 11:15:28,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640916b1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28, skipping insertion in model container [2024-07-17 11:15:28,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:15:28" (2/2) ... [2024-07-17 11:15:28,609 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-17 11:15:28,624 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-17 11:15:28,625 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] ! multithreaded || 0 <= p [2024-07-17 11:15:28,629 INFO L97 edCorrectnessWitness]: Location invariant before [L95-L95] ! multithreaded || 0 <= p [2024-07-17 11:15:28,629 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] ! multithreaded || 0 <= p [2024-07-17 11:15:28,629 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-17 11:15:28,629 INFO L106 edCorrectnessWitness]: ghost_update [L94-L94] multithreaded = 1; [2024-07-17 11:15:28,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 11:15:28,785 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-07-17 11:15:28,794 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 11:15:28,802 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-17 11:15:28,854 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-07-17 11:15:28,856 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 11:15:28,871 INFO L206 MainTranslator]: Completed translation [2024-07-17 11:15:28,878 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28 WrapperNode [2024-07-17 11:15:28,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 11:15:28,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 11:15:28,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 11:15:28,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 11:15:28,885 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 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,901 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 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,918 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 144 [2024-07-17 11:15:28,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 11:15:28,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 11:15:28,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 11:15:28,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 11:15:28,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 11:15:28,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 11:15:28,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 11:15:28,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 11:15:28,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (1/1) ... [2024-07-17 11:15:28,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 11:15:28,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:28,980 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) [2024-07-17 11:15:28,986 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 [2024-07-17 11:15:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 11:15:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-17 11:15:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-17 11:15:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-17 11:15:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-17 11:15:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-07-17 11:15:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-07-17 11:15:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 11:15:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-07-17 11:15:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-17 11:15:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-17 11:15:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-07-17 11:15:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 11:15:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 11:15:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-07-17 11:15:29,009 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 11:15:29,112 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 11:15:29,114 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 11:15:29,384 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 11:15:29,384 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 11:15:29,569 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 11:15:29,569 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-07-17 11:15:29,569 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:15:29 BoogieIcfgContainer [2024-07-17 11:15:29,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 11:15:29,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 11:15:29,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 11:15:29,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 11:15:29,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:15:28" (1/4) ... [2024-07-17 11:15:29,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f79720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:15:29, skipping insertion in model container [2024-07-17 11:15:29,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:15:28" (2/4) ... [2024-07-17 11:15:29,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f79720 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 11:15:29, skipping insertion in model container [2024-07-17 11:15:29,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:15:28" (3/4) ... [2024-07-17 11:15:29,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f79720 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 11:15:29, skipping insertion in model container [2024-07-17 11:15:29,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:15:29" (4/4) ... [2024-07-17 11:15:29,580 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-07-17 11:15:29,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 11:15:29,595 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-07-17 11:15:29,595 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 11:15:29,644 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-07-17 11:15:29,680 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 11:15:29,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 11:15:29,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:29,682 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) [2024-07-17 11:15:29,708 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 [2024-07-17 11:15:29,721 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 11:15:29,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 11:15:29,736 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5490e1ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 11:15:29,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-07-17 11:15:29,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:29,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1013222647, now seen corresponding path program 1 times [2024-07-17 11:15:29,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:29,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072918411] [2024-07-17 11:15:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:29,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:15:30,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:30,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072918411] [2024-07-17 11:15:30,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072918411] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 11:15:30,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 11:15:30,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-07-17 11:15:30,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330392258] [2024-07-17 11:15:30,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 11:15:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 11:15:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:30,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 11:15:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 11:15:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:30,118 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:30,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-07-17 11:15:30,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:30,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 11:15:30,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:30,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash -830135728, now seen corresponding path program 1 times [2024-07-17 11:15:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865846929] [2024-07-17 11:15:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:30,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-07-17 11:15:30,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:30,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865846929] [2024-07-17 11:15:30,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865846929] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 11:15:30,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 11:15:30,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-17 11:15:30,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114052425] [2024-07-17 11:15:30,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 11:15:30,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-07-17 11:15:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-07-17 11:15:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-07-17 11:15:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:30,684 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:30,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 11:15:30,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:30,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:30,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:30,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-17 11:15:30,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:30,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1531296387, now seen corresponding path program 1 times [2024-07-17 11:15:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:30,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345184186] [2024-07-17 11:15:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:30,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-07-17 11:15:31,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:31,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345184186] [2024-07-17 11:15:31,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345184186] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:15:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945415439] [2024-07-17 11:15:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:31,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:31,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:31,061 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) [2024-07-17 11:15:31,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-17 11:15:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:31,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjunts are in the unsatisfiable core [2024-07-17 11:15:31,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:15:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-07-17 11:15:31,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:15:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-07-17 11:15:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945415439] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:15:31,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:15:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-07-17 11:15:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722661263] [2024-07-17 11:15:31,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:15:31,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-07-17 11:15:31,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:31,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-07-17 11:15:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-07-17 11:15:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:31,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:31,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 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) [2024-07-17 11:15:31,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:31,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:31,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:31,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-17 11:15:31,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-07-17 11:15:31,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:31,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1111428208, now seen corresponding path program 2 times [2024-07-17 11:15:31,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:31,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852966667] [2024-07-17 11:15:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:31,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-07-17 11:15:31,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:31,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852966667] [2024-07-17 11:15:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852966667] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:15:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106879260] [2024-07-17 11:15:31,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 11:15:31,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:31,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:31,956 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) [2024-07-17 11:15:31,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-17 11:15:32,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 11:15:32,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:15:32,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 10 conjunts are in the unsatisfiable core [2024-07-17 11:15:32,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:15:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-07-17 11:15:32,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:15:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-07-17 11:15:32,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106879260] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:15:32,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:15:32,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-07-17 11:15:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335917763] [2024-07-17 11:15:32,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:15:32,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-07-17 11:15:32,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:32,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-07-17 11:15:32,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-07-17 11:15:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:32,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:32,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 20 states have internal predecessors, (116), 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) [2024-07-17 11:15:32,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:32,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:32,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:32,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 11:15:32,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-17 11:15:32,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:32,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:32,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:32,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1336177309, now seen corresponding path program 3 times [2024-07-17 11:15:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795896756] [2024-07-17 11:15:32,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 23 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-07-17 11:15:32,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795896756] [2024-07-17 11:15:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795896756] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:15:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610436627] [2024-07-17 11:15:32,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-17 11:15:32,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:32,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:32,977 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) [2024-07-17 11:15:33,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-17 11:15:33,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-07-17 11:15:33,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:15:33,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 10 conjunts are in the unsatisfiable core [2024-07-17 11:15:33,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:15:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-07-17 11:15:33,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:15:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-07-17 11:15:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610436627] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:15:33,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:15:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-07-17 11:15:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709543244] [2024-07-17 11:15:33,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:15:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-07-17 11:15:33,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:33,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-07-17 11:15:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-07-17 11:15:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:33,351 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:33,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-17 11:15:33,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:33,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:33,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:33,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 11:15:33,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 11:15:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 11:15:33,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-17 11:15:33,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:33,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:33,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:33,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1137525697, now seen corresponding path program 4 times [2024-07-17 11:15:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:33,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910398894] [2024-07-17 11:15:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:33,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-07-17 11:15:33,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:33,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910398894] [2024-07-17 11:15:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910398894] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:15:33,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642355382] [2024-07-17 11:15:33,987 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-17 11:15:33,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:33,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:33,988 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) [2024-07-17 11:15:33,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-17 11:15:34,089 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-17 11:15:34,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:15:34,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 10 conjunts are in the unsatisfiable core [2024-07-17 11:15:34,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:15:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-07-17 11:15:34,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:15:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-07-17 11:15:34,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642355382] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:15:34,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:15:34,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 6] total 22 [2024-07-17 11:15:34,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060854668] [2024-07-17 11:15:34,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:15:34,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-07-17 11:15:34,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:15:34,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-07-17 11:15:34,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-07-17 11:15:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:34,320 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:15:34,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 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) [2024-07-17 11:15:34,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:34,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:34,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:34,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-07-17 11:15:34,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 11:15:34,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:15:34,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:15:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 11:15:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 11:15:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-07-17 11:15:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 11:15:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-07-17 11:15:34,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-07-17 11:15:34,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-07-17 11:15:34,878 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-07-17 11:15:34,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:15:34,878 INFO L85 PathProgramCache]: Analyzing trace with hash -134718387, now seen corresponding path program 5 times [2024-07-17 11:15:34,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:15:34,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632931599] [2024-07-17 11:15:34,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:15:34,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:15:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:15:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-07-17 11:15:40,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:15:40,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632931599] [2024-07-17 11:15:40,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632931599] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:15:40,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760092573] [2024-07-17 11:15:40,615 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-07-17 11:15:40,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:15:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:15:40,616 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) [2024-07-17 11:15:40,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-07-17 11:15:42,141 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-07-17 11:15:42,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:15:42,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 81 conjunts are in the unsatisfiable core [2024-07-17 11:15:42,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:15:42,776 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-07-17 11:15:42,776 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 [2024-07-17 11:15:43,610 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-07-17 11:15:43,611 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 [2024-07-17 11:15:45,918 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-07-17 11:15:45,919 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 308 treesize of output 314 [2024-07-17 11:15:52,011 INFO L349 Elim1Store]: treesize reduction 734, result has 22.9 percent of original size [2024-07-17 11:15:52,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 15 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 133 case distinctions, treesize of input 666 treesize of output 548 Killed by 15