./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c ./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 13:28:04,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 13:28:04,084 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 13:28:04,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 13:28:04,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 13:28:04,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 13:28:04,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 13:28:04,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 13:28:04,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 13:28:04,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 13:28:04,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 13:28:04,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 13:28:04,125 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 13:28:04,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 13:28:04,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 13:28:04,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 13:28:04,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 13:28:04,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 13:28:04,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 13:28:04,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 13:28:04,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 13:28:04,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 13:28:04,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 13:28:04,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 13:28:04,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 13:28:04,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 13:28:04,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 13:28:04,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 13:28:04,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 13:28:04,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 13:28:04,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 13:28:04,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 13:28:04,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 13:28:04,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 13:28:04,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 13:28:04,135 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 13:28:04,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 13:28:04,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 13:28:04,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 13:28:04,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 13:28:04,137 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 13:28:04,137 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 13:28:04,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-23 13:28:04,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 13:28:04,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 13:28:04,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 13:28:04,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 13:28:04,420 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 13:28:04,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-08-23 13:28:05,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 13:28:06,012 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 13:28:06,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-08-23 13:28:06,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ebbef5521/08e917e9526f43c78a158afbb7fef4b0/FLAGc720d8126 [2024-08-23 13:28:06,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ebbef5521/08e917e9526f43c78a158afbb7fef4b0 [2024-08-23 13:28:06,038 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 13:28:06,039 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 13:28:06,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/popl20-queue-add-2.wvr.yml/witness.yml [2024-08-23 13:28:06,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 13:28:06,107 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 13:28:06,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 13:28:06,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 13:28:06,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 13:28:06,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 01:28:06" (1/2) ... [2024-08-23 13:28:06,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e768c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 01:28:06, skipping insertion in model container [2024-08-23 13:28:06,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 01:28:06" (1/2) ... [2024-08-23 13:28:06,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6654dcd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 01:28:06, skipping insertion in model container [2024-08-23 13:28:06,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 01:28:06" (2/2) ... [2024-08-23 13:28:06,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e768c29 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06, skipping insertion in model container [2024-08-23 13:28:06,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 01:28:06" (2/2) ... [2024-08-23 13:28:06,120 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 13:28:06,136 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 13:28:06,140 INFO L97 edCorrectnessWitness]: Location invariant before [L93-L93] ! multithreaded || 0 <= N [2024-08-23 13:28:06,140 INFO L97 edCorrectnessWitness]: Location invariant before [L94-L94] ! multithreaded || 0 <= N [2024-08-23 13:28:06,140 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-23 13:28:06,140 INFO L106 edCorrectnessWitness]: ghost_update [L92-L92] multithreaded = 1; [2024-08-23 13:28:06,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 13:28:06,365 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2024-08-23 13:28:06,378 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 13:28:06,388 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-23 13:28:06,450 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2024-08-23 13:28:06,453 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 13:28:06,473 INFO L206 MainTranslator]: Completed translation [2024-08-23 13:28:06,475 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06 WrapperNode [2024-08-23 13:28:06,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 13:28:06,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 13:28:06,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 13:28:06,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 13:28:06,483 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 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,493 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 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,527 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 154 [2024-08-23 13:28:06,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 13:28:06,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 13:28:06,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 13:28:06,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 13:28:06,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 13:28:06,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 13:28:06,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 13:28:06,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 13:28:06,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (1/1) ... [2024-08-23 13:28:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 13:28:06,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:06,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-23 13:28:06,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-23 13:28:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 13:28:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 13:28:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 13:28:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 13:28:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 13:28:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 13:28:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 13:28:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 13:28:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 13:28:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 13:28:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 13:28:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 13:28:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 13:28:06,651 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 13:28:06,755 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 13:28:06,756 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 13:28:07,049 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 13:28:07,049 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 13:28:07,252 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 13:28:07,252 INFO L319 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-23 13:28:07,253 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 01:28:07 BoogieIcfgContainer [2024-08-23 13:28:07,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 13:28:07,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 13:28:07,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 13:28:07,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 13:28:07,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 01:28:06" (1/4) ... [2024-08-23 13:28:07,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bec37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 01:28:07, skipping insertion in model container [2024-08-23 13:28:07,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 01:28:06" (2/4) ... [2024-08-23 13:28:07,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bec37a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 01:28:07, skipping insertion in model container [2024-08-23 13:28:07,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 01:28:06" (3/4) ... [2024-08-23 13:28:07,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bec37a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 01:28:07, skipping insertion in model container [2024-08-23 13:28:07,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 01:28:07" (4/4) ... [2024-08-23 13:28:07,265 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2024-08-23 13:28:07,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 13:28:07,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-23 13:28:07,287 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 13:28:07,326 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 13:28:07,368 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 13:28:07,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 13:28:07,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:07,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 13:28:07,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-23 13:28:07,428 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 13:28:07,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 13:28:07,447 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;@158ff258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 13:28:07,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-23 13:28:07,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:07,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1719949885, now seen corresponding path program 1 times [2024-08-23 13:28:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:07,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234970423] [2024-08-23 13:28:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:07,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234970423] [2024-08-23 13:28:07,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234970423] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 13:28:07,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 13:28:07,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 13:28:07,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809407667] [2024-08-23 13:28:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 13:28:07,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 13:28:07,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:07,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 13:28:07,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 13:28:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:07,788 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:07,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:07,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:07,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 13:28:07,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:07,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash -30968603, now seen corresponding path program 1 times [2024-08-23 13:28:07,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:07,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630199764] [2024-08-23 13:28:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:07,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:08,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:08,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630199764] [2024-08-23 13:28:08,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630199764] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 13:28:08,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 13:28:08,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 13:28:08,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977442228] [2024-08-23 13:28:08,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 13:28:08,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 13:28:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:08,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 13:28:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 13:28:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:08,187 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:08,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:08,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:08,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:08,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-23 13:28:08,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:08,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1345076868, now seen corresponding path program 1 times [2024-08-23 13:28:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720552189] [2024-08-23 13:28:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:08,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:08,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720552189] [2024-08-23 13:28:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720552189] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247518820] [2024-08-23 13:28:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:08,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:08,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:08,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-23 13:28:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:08,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-23 13:28:08,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:08,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:08,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247518820] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:08,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:08,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-08-23 13:28:08,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269998732] [2024-08-23 13:28:08,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:08,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-23 13:28:08,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:08,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-23 13:28:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-08-23 13:28:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:08,960 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:08,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:09,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:09,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-23 13:28:09,279 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 [2024-08-23 13:28:09,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:09,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1052813509, now seen corresponding path program 2 times [2024-08-23 13:28:09,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:09,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175141942] [2024-08-23 13:28:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:09,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:09,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175141942] [2024-08-23 13:28:09,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175141942] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299795520] [2024-08-23 13:28:09,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 13:28:09,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:09,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:09,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:09,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-23 13:28:09,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 13:28:09,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:09,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-23 13:28:09,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:10,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-08-23 13:28:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:10,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:10,352 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 13:28:10,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 11 [2024-08-23 13:28:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:10,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299795520] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:10,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:10,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 22 [2024-08-23 13:28:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711316692] [2024-08-23 13:28:10,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-23 13:28:10,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-23 13:28:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-08-23 13:28:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:10,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:10,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:10,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:10,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:10,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:10,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:11,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:11,261 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 [2024-08-23 13:28:11,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:11,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1506478733, now seen corresponding path program 1 times [2024-08-23 13:28:11,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:11,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287964329] [2024-08-23 13:28:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:11,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:12,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287964329] [2024-08-23 13:28:12,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287964329] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704284370] [2024-08-23 13:28:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:12,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:12,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:12,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:12,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-23 13:28:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:12,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 23 conjunts are in the unsatisfiable core [2024-08-23 13:28:12,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 13:28:12,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:12,815 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 13:28:12,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-08-23 13:28:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 13:28:12,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704284370] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:12,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:12,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 5] total 22 [2024-08-23 13:28:12,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428858863] [2024-08-23 13:28:12,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:12,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-23 13:28:12,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-23 13:28:12,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2024-08-23 13:28:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:12,852 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:12,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.260869565217391) internal successors, (75), 22 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:12,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:12,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:12,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:12,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:12,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:13,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:13,567 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 [2024-08-23 13:28:13,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:13,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1109296858, now seen corresponding path program 2 times [2024-08-23 13:28:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:13,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902631447] [2024-08-23 13:28:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:13,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:13,902 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 13:28:13,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:13,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902631447] [2024-08-23 13:28:13,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902631447] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:13,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601682364] [2024-08-23 13:28:13,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 13:28:13,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:13,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:13,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:13,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-23 13:28:14,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 13:28:14,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:14,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-23 13:28:14,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 13:28:14,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 13:28:14,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601682364] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:14,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:14,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2024-08-23 13:28:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349534783] [2024-08-23 13:28:14,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:14,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-23 13:28:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-23 13:28:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2024-08-23 13:28:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:14,770 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:14,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5833333333333335) internal successors, (129), 35 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:14,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:14,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:14,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:14,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:14,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:14,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:14,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:15,148 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 [2024-08-23 13:28:15,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:15,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash -593955429, now seen corresponding path program 3 times [2024-08-23 13:28:15,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:15,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233299128] [2024-08-23 13:28:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:15,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:16,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:16,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233299128] [2024-08-23 13:28:16,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233299128] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159722328] [2024-08-23 13:28:16,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 13:28:16,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:16,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:16,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:16,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-23 13:28:16,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-08-23 13:28:16,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:16,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 49 conjunts are in the unsatisfiable core [2024-08-23 13:28:16,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:16,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2024-08-23 13:28:16,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2024-08-23 13:28:16,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2024-08-23 13:28:16,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-08-23 13:28:17,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 13:28:17,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 30 [2024-08-23 13:28:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 13:28:17,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:18,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 126 [2024-08-23 13:28:18,663 INFO L349 Elim1Store]: treesize reduction 10, result has 52.4 percent of original size [2024-08-23 13:28:18,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 10335 treesize of output 10109 [2024-08-23 13:28:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 1 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 13:28:19,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159722328] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:19,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:19,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 48 [2024-08-23 13:28:19,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754100130] [2024-08-23 13:28:19,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:19,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-08-23 13:28:19,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-08-23 13:28:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1957, Unknown=0, NotChecked=0, Total=2352 [2024-08-23 13:28:19,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:19,192 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:19,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.061224489795918) internal successors, (150), 48 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:19,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:19,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:19,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:19,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:19,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:19,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:19,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:19,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:19,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:19,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:19,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1855168774, now seen corresponding path program 4 times [2024-08-23 13:28:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972028634] [2024-08-23 13:28:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:21,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972028634] [2024-08-23 13:28:21,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972028634] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:21,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900817225] [2024-08-23 13:28:21,236 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 13:28:21,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:21,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:21,238 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:21,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-23 13:28:21,343 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 13:28:21,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:21,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 37 conjunts are in the unsatisfiable core [2024-08-23 13:28:21,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 66 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 13:28:21,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:21,851 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:21,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-08-23 13:28:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-08-23 13:28:21,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900817225] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:21,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:21,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 6] total 35 [2024-08-23 13:28:21,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261180308] [2024-08-23 13:28:21,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:21,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-23 13:28:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:21,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-23 13:28:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2024-08-23 13:28:21,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:21,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:21,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 35 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:21,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:21,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:22,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:22,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-08-23 13:28:22,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:22,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash 862178529, now seen corresponding path program 5 times [2024-08-23 13:28:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896563698] [2024-08-23 13:28:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:22,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 26 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:24,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896563698] [2024-08-23 13:28:24,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896563698] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:24,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905779749] [2024-08-23 13:28:24,046 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 13:28:24,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:24,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:24,048 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:24,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-23 13:28:24,224 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-08-23 13:28:24,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:24,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 42 conjunts are in the unsatisfiable core [2024-08-23 13:28:24,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:25,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 13:28:25,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2024-08-23 13:28:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 16 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:25,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:25,846 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:25,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:28:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 22 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:26,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905779749] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:26,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:26,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24, 24] total 69 [2024-08-23 13:28:26,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821165] [2024-08-23 13:28:26,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:26,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-08-23 13:28:26,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:26,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-08-23 13:28:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=836, Invalid=3994, Unknown=0, NotChecked=0, Total=4830 [2024-08-23 13:28:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:26,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:26,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.7714285714285714) internal successors, (194), 69 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:26,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:26,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:27,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:27,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:27,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:27,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:27,681 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:27,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2080301120, now seen corresponding path program 6 times [2024-08-23 13:28:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:27,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880654281] [2024-08-23 13:28:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:27,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 5 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:29,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880654281] [2024-08-23 13:28:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880654281] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210723798] [2024-08-23 13:28:29,238 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 13:28:29,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:29,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:29,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:29,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-23 13:28:29,675 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-08-23 13:28:29,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:29,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 45 conjunts are in the unsatisfiable core [2024-08-23 13:28:29,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 130 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-23 13:28:30,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:30,307 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:30,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:28:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 88 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-08-23 13:28:30,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210723798] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:30,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:30,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 8] total 45 [2024-08-23 13:28:30,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981311109] [2024-08-23 13:28:30,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:30,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-08-23 13:28:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-08-23 13:28:30,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1906, Unknown=0, NotChecked=0, Total=2070 [2024-08-23 13:28:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:30,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:30,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.0652173913043477) internal successors, (141), 45 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:30,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:30,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:30,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:30,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:30,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:31,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:31,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-23 13:28:31,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:31,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash 247083419, now seen corresponding path program 7 times [2024-08-23 13:28:31,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:31,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340035342] [2024-08-23 13:28:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:31,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 61 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340035342] [2024-08-23 13:28:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340035342] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510423021] [2024-08-23 13:28:32,985 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-23 13:28:32,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:32,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:32,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:32,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-23 13:28:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:33,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 65 conjunts are in the unsatisfiable core [2024-08-23 13:28:33,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:34,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-08-23 13:28:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 18 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:34,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:34,949 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:34,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-08-23 13:28:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 10 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:36,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510423021] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:36,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 29] total 83 [2024-08-23 13:28:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465102464] [2024-08-23 13:28:36,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:36,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-08-23 13:28:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-08-23 13:28:36,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1266, Invalid=5706, Unknown=0, NotChecked=0, Total=6972 [2024-08-23 13:28:36,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:36,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:36,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.738095238095238) internal successors, (230), 83 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:36,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:37,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-23 13:28:37,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-08-23 13:28:37,469 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:37,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:37,469 INFO L85 PathProgramCache]: Analyzing trace with hash 432140926, now seen corresponding path program 8 times [2024-08-23 13:28:37,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:37,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653132358] [2024-08-23 13:28:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:37,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 92 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:38,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:38,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653132358] [2024-08-23 13:28:38,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653132358] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:38,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245702743] [2024-08-23 13:28:38,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 13:28:38,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:38,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:38,696 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:38,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-23 13:28:38,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 13:28:38,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:38,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 64 conjunts are in the unsatisfiable core [2024-08-23 13:28:38,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:40,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-08-23 13:28:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 19 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:40,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:40,707 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:40,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:28:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 10 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245702743] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:42,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31, 32] total 91 [2024-08-23 13:28:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96722046] [2024-08-23 13:28:42,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:42,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-08-23 13:28:42,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-08-23 13:28:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1467, Invalid=6905, Unknown=0, NotChecked=0, Total=8372 [2024-08-23 13:28:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:42,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:42,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.760869565217391) internal successors, (254), 91 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:28:44,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:44,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:44,409 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:44,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:44,410 INFO L85 PathProgramCache]: Analyzing trace with hash 301640507, now seen corresponding path program 9 times [2024-08-23 13:28:44,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:44,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818598691] [2024-08-23 13:28:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 130 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:45,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:45,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818598691] [2024-08-23 13:28:45,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818598691] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:45,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801093521] [2024-08-23 13:28:45,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 13:28:45,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:45,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:45,857 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:45,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-23 13:28:46,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-08-23 13:28:46,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:46,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 81 conjunts are in the unsatisfiable core [2024-08-23 13:28:46,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:46,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-23 13:28:46,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-23 13:28:48,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 13:28:48,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 76 treesize of output 82 [2024-08-23 13:28:48,097 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-08-23 13:28:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 155 proven. 165 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-08-23 13:28:48,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:51,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 182 [2024-08-23 13:28:51,364 INFO L349 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2024-08-23 13:28:51,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 680 treesize of output 639 [2024-08-23 13:28:51,623 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-08-23 13:28:52,184 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 5 proven. 315 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-08-23 13:28:52,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801093521] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:52,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:52,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 28, 28] total 87 [2024-08-23 13:28:52,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122278978] [2024-08-23 13:28:52,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:52,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-08-23 13:28:52,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:52,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-08-23 13:28:52,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1032, Invalid=6624, Unknown=0, NotChecked=0, Total=7656 [2024-08-23 13:28:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:52,189 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:52,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.7386363636363638) internal successors, (241), 87 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:28:52,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:28:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:53,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-08-23 13:28:53,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-08-23 13:28:53,998 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:53,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash 417401242, now seen corresponding path program 10 times [2024-08-23 13:28:53,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:53,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356223712] [2024-08-23 13:28:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:28:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 12 proven. 367 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:28:56,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:28:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356223712] [2024-08-23 13:28:56,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356223712] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:28:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947476849] [2024-08-23 13:28:56,174 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 13:28:56,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:28:56,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:28:56,176 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:28:56,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-23 13:28:56,401 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 13:28:56,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:28:56,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 71 conjunts are in the unsatisfiable core [2024-08-23 13:28:56,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:28:57,384 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 41 proven. 319 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-08-23 13:28:57,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:28:57,620 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:28:57,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:28:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 11 proven. 259 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-08-23 13:28:57,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947476849] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:28:57,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:28:57,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 27, 12] total 68 [2024-08-23 13:28:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32272729] [2024-08-23 13:28:57,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:28:57,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-08-23 13:28:57,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:28:57,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-08-23 13:28:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=4412, Unknown=0, NotChecked=0, Total=4692 [2024-08-23 13:28:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:57,683 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:28:57,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.9565217391304346) internal successors, (204), 68 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:28:57,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:57,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:57,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:57,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:57,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:57,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:28:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:28:59,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:28:59,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-23 13:28:59,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-23 13:28:59,760 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:28:59,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:28:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2053643675, now seen corresponding path program 11 times [2024-08-23 13:28:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:28:59,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139855381] [2024-08-23 13:28:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:28:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:28:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:29:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 183 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:01,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:29:01,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139855381] [2024-08-23 13:29:01,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139855381] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:29:01,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284764180] [2024-08-23 13:29:01,712 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 13:29:01,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:29:01,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:29:01,714 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:29:01,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-23 13:29:01,989 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-08-23 13:29:01,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:29:01,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 77 conjunts are in the unsatisfiable core [2024-08-23 13:29:01,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:29:03,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-08-23 13:29:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 22 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:03,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:29:04,746 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:29:04,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:29:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 10 proven. 454 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:06,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284764180] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:29:06,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:29:06,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 39] total 113 [2024-08-23 13:29:06,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018195777] [2024-08-23 13:29:06,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:29:06,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2024-08-23 13:29:06,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:29:06,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2024-08-23 13:29:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2218, Invalid=10664, Unknown=0, NotChecked=0, Total=12882 [2024-08-23 13:29:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:29:06,729 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:29:06,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 2.6491228070175437) internal successors, (302), 113 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:29:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:29:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:29:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:29:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:29:09,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-23 13:29:09,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-08-23 13:29:09,666 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:29:09,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:29:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1188991870, now seen corresponding path program 12 times [2024-08-23 13:29:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:29:09,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444164132] [2024-08-23 13:29:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:29:09,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:29:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:29:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 234 proven. 317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:29:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444164132] [2024-08-23 13:29:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444164132] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:29:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140780610] [2024-08-23 13:29:11,686 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 13:29:11,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:29:11,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:29:11,687 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:29:11,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-23 13:29:12,604 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-08-23 13:29:12,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:29:12,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 88 conjunts are in the unsatisfiable core [2024-08-23 13:29:12,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:29:13,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-08-23 13:29:14,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-08-23 13:29:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 23 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:14,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:29:17,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2024-08-23 13:29:17,096 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-08-23 13:29:17,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 48 [2024-08-23 13:29:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 1 proven. 550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:29:18,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140780610] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:29:18,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:29:18,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 42] total 123 [2024-08-23 13:29:18,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217922094] [2024-08-23 13:29:18,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:29:18,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2024-08-23 13:29:18,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:29:18,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2024-08-23 13:29:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2528, Invalid=12724, Unknown=0, NotChecked=0, Total=15252 [2024-08-23 13:29:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:29:18,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:29:18,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.629032258064516) internal successors, (326), 123 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:29:18,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:29:18,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:29:18,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:29:18,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:29:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:29:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:29:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-08-23 13:29:20,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-08-23 13:29:20,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-23 13:29:20,507 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:29:20,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:29:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -888474403, now seen corresponding path program 13 times [2024-08-23 13:29:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:29:20,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755536699] [2024-08-23 13:29:20,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:29:20,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:29:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:30:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 29 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 13:30:54,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:30:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755536699] [2024-08-23 13:30:54,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755536699] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:30:54,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205093725] [2024-08-23 13:30:54,987 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-23 13:30:54,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:30:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:30:54,990 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:30:54,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-23 13:30:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:30:55,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 117 conjunts are in the unsatisfiable core [2024-08-23 13:30:55,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:30:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 29 proven. 914 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 13:30:58,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:30:58,905 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:30:58,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:30:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 14 proven. 402 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-08-23 13:30:58,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205093725] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:30:58,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:30:58,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 52, 16] total 119 [2024-08-23 13:30:58,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767577899] [2024-08-23 13:30:58,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:30:58,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2024-08-23 13:30:58,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:30:58,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2024-08-23 13:30:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=13624, Unknown=0, NotChecked=0, Total=14280 [2024-08-23 13:30:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:30:58,979 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:30:58,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 2.3916666666666666) internal successors, (287), 119 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:30:58,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:30:58,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:30:58,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:30:58,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:30:58,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:30:58,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:30:58,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-08-23 13:30:58,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:31:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-08-23 13:31:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-23 13:31:05,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-08-23 13:31:05,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-23 13:31:05,863 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:31:05,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:31:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1293284539, now seen corresponding path program 14 times [2024-08-23 13:31:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:31:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066556997] [2024-08-23 13:31:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:31:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:31:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 13:31:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 20 proven. 1103 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-08-23 13:31:23,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 13:31:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066556997] [2024-08-23 13:31:23,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066556997] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 13:31:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099373954] [2024-08-23 13:31:23,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 13:31:23,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 13:31:23,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 13:31:23,186 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 13:31:23,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-23 13:31:23,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 13:31:23,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 13:31:23,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 125 conjunts are in the unsatisfiable core [2024-08-23 13:31:23,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 13:31:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 29 proven. 1088 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 13:31:27,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 13:31:27,806 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-08-23 13:31:27,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-08-23 13:31:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 17 proven. 573 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-08-23 13:31:27,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099373954] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 13:31:27,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 13:31:27,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 56, 18] total 124 [2024-08-23 13:31:27,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384973689] [2024-08-23 13:31:27,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 13:31:27,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2024-08-23 13:31:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 13:31:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2024-08-23 13:31:27,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=14903, Unknown=0, NotChecked=0, Total=15500 [2024-08-23 13:31:27,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:31:27,889 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 13:31:27,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 2.56) internal successors, (320), 124 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 13:31:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:31:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:31:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:31:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-08-23 13:31:27,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 13:31:34,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-08-23 13:31:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-23 13:31:34,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-08-23 13:31:34,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-08-23 13:31:34,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-23 13:31:34,563 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 13:31:34,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 13:31:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1292702237, now seen corresponding path program 15 times [2024-08-23 13:31:34,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 13:31:34,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946440953] [2024-08-23 13:31:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 13:31:34,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 13:31:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat