./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-three-array-min.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-three-array-min.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-three-array-min.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 09:53:09,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 09:53:09,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 09:53:09,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 09:53:09,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 09:53:09,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 09:53:09,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 09:53:09,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 09:53:09,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 09:53:09,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 09:53:09,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 09:53:09,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 09:53:09,409 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 09:53:09,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 09:53:09,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 09:53:09,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 09:53:09,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 09:53:09,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 09:53:09,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 09:53:09,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 09:53:09,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 09:53:09,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 09:53:09,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 09:53:09,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 09:53:09,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 09:53:09,416 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 09:53:09,417 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 09:53:09,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-23 09:53:09,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 09:53:09,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 09:53:09,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 09:53:09,666 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 09:53:09,666 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 09:53:09,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-three-array-min.wvr.yml/witness.yml [2024-08-23 09:53:09,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 09:53:09,808 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 09:53:09,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2024-08-23 09:53:11,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 09:53:11,187 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 09:53:11,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2024-08-23 09:53:11,193 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d1978fe4c/a54021ecf8ef45b19da1bf544f4583e2/FLAGec162fd4e [2024-08-23 09:53:11,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d1978fe4c/a54021ecf8ef45b19da1bf544f4583e2 [2024-08-23 09:53:11,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 09:53:11,219 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 09:53:11,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 09:53:11,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 09:53:11,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 09:53:11,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:53:09" (1/2) ... [2024-08-23 09:53:11,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395a85cf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 09:53:11, skipping insertion in model container [2024-08-23 09:53:11,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:53:09" (1/2) ... [2024-08-23 09:53:11,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c1d7c07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 09:53:11, skipping insertion in model container [2024-08-23 09:53:11,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 09:53:11" (2/2) ... [2024-08-23 09:53:11,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395a85cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11, skipping insertion in model container [2024-08-23 09:53:11,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 09:53:11" (2/2) ... [2024-08-23 09:53:11,227 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 09:53:11,246 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 09:53:11,247 INFO L97 edCorrectnessWitness]: Location invariant before [L79-L81] (((((1 <= N) && (1 <= p)) && ((-2LL + (long long )N) + (long long )p >= 0LL)) && ((1073741822LL - (long long )N) + (long long )p >= 0LL)) && ((1073741822LL + (long long )N) - (long long )p >= 0LL)) && ((2147483646LL - (long long )N) - (long long )p >= 0LL) [2024-08-23 09:53:11,247 INFO L97 edCorrectnessWitness]: Location invariant before [L63-L63] (((((1 <= N) && (1 <= p)) && ((-2LL + (long long )N) + (long long )p >= 0LL)) && ((1073741822LL - (long long )N) + (long long )p >= 0LL)) && ((1073741822LL + (long long )N) - (long long )p >= 0LL)) && ((2147483646LL - (long long )N) - (long long )p >= 0LL) [2024-08-23 09:53:11,247 INFO L97 edCorrectnessWitness]: Location invariant before [L75-L75] (((((1 <= N) && (1 <= p)) && ((-2LL + (long long )N) + (long long )p >= 0LL)) && ((1073741822LL - (long long )N) + (long long )p >= 0LL)) && ((1073741822LL + (long long )N) - (long long )p >= 0LL)) && ((2147483646LL - (long long )N) - (long long )p >= 0LL) [2024-08-23 09:53:11,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 09:53:11,437 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 09:53:11,446 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-23 09:53:11,496 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 09:53:11,515 INFO L206 MainTranslator]: Completed translation [2024-08-23 09:53:11,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11 WrapperNode [2024-08-23 09:53:11,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 09:53:11,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 09:53:11,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 09:53:11,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 09:53:11,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,552 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 225 [2024-08-23 09:53:11,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 09:53:11,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 09:53:11,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 09:53:11,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 09:53:11,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 09:53:11,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 09:53:11,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 09:53:11,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 09:53:11,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (1/1) ... [2024-08-23 09:53:11,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 09:53:11,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:11,611 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 09:53:11,613 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 09:53:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 09:53:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 09:53:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-23 09:53:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 09:53:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 09:53:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 09:53:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 09:53:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 09:53:11,639 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 09:53:11,722 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 09:53:11,724 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 09:53:12,063 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 09:53:12,063 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 09:53:12,337 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 09:53:12,338 INFO L319 CfgBuilder]: Removed 6 assume(true) statements. [2024-08-23 09:53:12,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:53:12 BoogieIcfgContainer [2024-08-23 09:53:12,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 09:53:12,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 09:53:12,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 09:53:12,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 09:53:12,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 09:53:09" (1/4) ... [2024-08-23 09:53:12,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d246bfd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 09:53:12, skipping insertion in model container [2024-08-23 09:53:12,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 09:53:11" (2/4) ... [2024-08-23 09:53:12,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d246bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 09:53:12, skipping insertion in model container [2024-08-23 09:53:12,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 09:53:11" (3/4) ... [2024-08-23 09:53:12,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d246bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 09:53:12, skipping insertion in model container [2024-08-23 09:53:12,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 09:53:12" (4/4) ... [2024-08-23 09:53:12,345 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-08-23 09:53:12,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 09:53:12,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-23 09:53:12,360 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 09:53:12,464 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-08-23 09:53:12,503 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 09:53:12,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 09:53:12,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:12,505 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 09:53:12,506 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 09:53:12,530 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 09:53:12,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-08-23 09:53:12,546 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;@60b5ba42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 09:53:12,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 09:53:12,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:12,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 539714473, now seen corresponding path program 1 times [2024-08-23 09:53:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:12,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920334848] [2024-08-23 09:53:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:13,020 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 09:53:13,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920334848] [2024-08-23 09:53:13,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920334848] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 09:53:13,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 09:53:13,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 09:53:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826549741] [2024-08-23 09:53:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 09:53:13,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 09:53:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:13,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 09:53:13,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 09:53:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:13,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 09:53:13,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:13,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 09:53:13,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:13,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash -589428644, now seen corresponding path program 1 times [2024-08-23 09:53:13,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:13,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604319965] [2024-08-23 09:53:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-23 09:53:13,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:13,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604319965] [2024-08-23 09:53:13,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604319965] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 09:53:13,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 09:53:13,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 09:53:13,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781599307] [2024-08-23 09:53:13,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 09:53:13,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 09:53:13,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:13,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 09:53:13,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 09:53:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 09:53:13,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:13,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:13,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-23 09:53:13,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:13,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:13,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2044736795, now seen corresponding path program 1 times [2024-08-23 09:53:13,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:13,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672852158] [2024-08-23 09:53:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:13,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 09:53:13,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:13,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672852158] [2024-08-23 09:53:13,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672852158] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:13,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008114247] [2024-08-23 09:53:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:13,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:13,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:13,475 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 09:53:13,476 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 09:53:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:13,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-23 09:53:13,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 09:53:13,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 09:53:13,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008114247] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:13,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:13,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-08-23 09:53:13,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766731622] [2024-08-23 09:53:13,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:13,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-23 09:53:13,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:13,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-23 09:53:13,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-08-23 09:53:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,744 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:13,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 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 09:53:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:13,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:13,873 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 09:53:14,059 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 09:53:14,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:14,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1827299625, now seen corresponding path program 2 times [2024-08-23 09:53:14,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:14,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516957544] [2024-08-23 09:53:14,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:14,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 09:53:14,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516957544] [2024-08-23 09:53:14,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516957544] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132651261] [2024-08-23 09:53:14,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 09:53:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:14,187 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 09:53:14,189 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 09:53:14,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-23 09:53:14,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:14,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-23 09:53:14,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-23 09:53:14,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 09:53:14,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132651261] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 09:53:14,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 09:53:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-08-23 09:53:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095714024] [2024-08-23 09:53:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 09:53:14,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 09:53:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 09:53:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-08-23 09:53:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:14,317 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:14,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 09:53:14,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:14,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:14,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:14,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:14,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-23 09:53:14,583 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 09:53:14,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:14,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:14,584 INFO L85 PathProgramCache]: Analyzing trace with hash 751682063, now seen corresponding path program 1 times [2024-08-23 09:53:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:14,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393735378] [2024-08-23 09:53:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:14,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 09:53:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393735378] [2024-08-23 09:53:14,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393735378] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110750955] [2024-08-23 09:53:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:14,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:14,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:14,753 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 09:53:14,754 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 09:53:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:14,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-23 09:53:14,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 09:53:14,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 09:53:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110750955] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:15,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:15,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2024-08-23 09:53:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770375824] [2024-08-23 09:53:15,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:15,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-23 09:53:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-23 09:53:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-08-23 09:53:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:15,104 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:15,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 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 09:53:15,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:15,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:15,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:15,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:15,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:15,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-23 09:53:15,577 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 09:53:15,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:15,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:15,578 INFO L85 PathProgramCache]: Analyzing trace with hash -442256278, now seen corresponding path program 1 times [2024-08-23 09:53:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:15,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118304726] [2024-08-23 09:53:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:15,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:15,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118304726] [2024-08-23 09:53:15,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118304726] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:15,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348697331] [2024-08-23 09:53:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:15,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:15,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:15,768 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 09:53:15,769 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 09:53:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:15,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 9 conjunts are in the unsatisfiable core [2024-08-23 09:53:15,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:15,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348697331] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:16,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:16,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-08-23 09:53:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567714334] [2024-08-23 09:53:16,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:16,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-23 09:53:16,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:16,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-23 09:53:16,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-08-23 09:53:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:16,064 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:16,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 17 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:16,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:16,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:16,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:16,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-23 09:53:16,437 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 09:53:16,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:16,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:16,439 INFO L85 PathProgramCache]: Analyzing trace with hash 401375918, now seen corresponding path program 1 times [2024-08-23 09:53:16,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:16,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850231307] [2024-08-23 09:53:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:16,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:16,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:16,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850231307] [2024-08-23 09:53:16,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850231307] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:16,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410308778] [2024-08-23 09:53:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:16,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:16,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:16,719 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 09:53:16,719 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 09:53:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:16,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 19 conjunts are in the unsatisfiable core [2024-08-23 09:53:16,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:16,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 09:53:17,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410308778] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:17,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:17,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2024-08-23 09:53:17,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620722571] [2024-08-23 09:53:17,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:17,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-08-23 09:53:17,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:17,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-08-23 09:53:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-08-23 09:53:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:17,105 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:17,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:17,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-23 09:53:17,849 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 09:53:17,849 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:17,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:17,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1215926826, now seen corresponding path program 1 times [2024-08-23 09:53:17,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:17,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787828369] [2024-08-23 09:53:17,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:17,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787828369] [2024-08-23 09:53:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787828369] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137390009] [2024-08-23 09:53:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:18,022 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 09:53:18,023 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 09:53:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:18,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-23 09:53:18,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:18,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137390009] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:18,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-08-23 09:53:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911944171] [2024-08-23 09:53:18,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:18,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-08-23 09:53:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-08-23 09:53:18,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-08-23 09:53:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:18,412 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:18,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 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 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:18,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:18,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-23 09:53:18,872 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 09:53:18,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:18,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:18,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1286149182, now seen corresponding path program 1 times [2024-08-23 09:53:18,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:18,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363920656] [2024-08-23 09:53:18,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:18,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:19,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:19,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363920656] [2024-08-23 09:53:19,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363920656] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:19,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715400451] [2024-08-23 09:53:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:19,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:19,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:19,142 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 09:53:19,144 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 09:53:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:19,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 23 conjunts are in the unsatisfiable core [2024-08-23 09:53:19,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:19,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-23 09:53:19,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715400451] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:19,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:19,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-08-23 09:53:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399294266] [2024-08-23 09:53:19,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-08-23 09:53:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-08-23 09:53:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-08-23 09:53:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:19,711 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:19,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:19,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:20,442 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 09:53:20,629 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 09:53:20,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:20,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:20,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1353089862, now seen corresponding path program 2 times [2024-08-23 09:53:20,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:20,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508686153] [2024-08-23 09:53:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-23 09:53:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508686153] [2024-08-23 09:53:20,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508686153] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817525782] [2024-08-23 09:53:20,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 09:53:20,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:20,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:20,911 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 09:53:20,912 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 09:53:21,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 09:53:21,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:21,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-23 09:53:21,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 16 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-23 09:53:21,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-23 09:53:21,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817525782] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:21,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:21,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-08-23 09:53:21,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441155239] [2024-08-23 09:53:21,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:21,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-23 09:53:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-23 09:53:21,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2024-08-23 09:53:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:21,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:21,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.8214285714285716) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:21,659 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 09:53:21,846 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 09:53:21,847 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:21,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:21,847 INFO L85 PathProgramCache]: Analyzing trace with hash 926183518, now seen corresponding path program 2 times [2024-08-23 09:53:21,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:21,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657790360] [2024-08-23 09:53:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:21,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 37 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-23 09:53:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657790360] [2024-08-23 09:53:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657790360] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995871857] [2024-08-23 09:53:22,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 09:53:22,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:22,239 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 09:53:22,239 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 09:53:22,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 09:53:22,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:22,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 27 conjunts are in the unsatisfiable core [2024-08-23 09:53:22,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 10 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-23 09:53:22,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-23 09:53:23,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995871857] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:23,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:23,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 13] total 37 [2024-08-23 09:53:23,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344544333] [2024-08-23 09:53:23,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:23,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-23 09:53:23,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:23,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-23 09:53:23,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1071, Unknown=0, NotChecked=0, Total=1332 [2024-08-23 09:53:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:23,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:23,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.108108108108108) internal successors, (115), 37 states have internal predecessors, (115), 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 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:23,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:23,866 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 09:53:24,052 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 09:53:24,053 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:24,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:24,053 INFO L85 PathProgramCache]: Analyzing trace with hash 155046054, now seen corresponding path program 3 times [2024-08-23 09:53:24,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:24,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82392676] [2024-08-23 09:53:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-08-23 09:53:24,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:24,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82392676] [2024-08-23 09:53:24,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82392676] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:24,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099117990] [2024-08-23 09:53:24,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 09:53:24,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:24,442 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 09:53:24,443 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 09:53:24,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-23 09:53:24,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:24,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-23 09:53:24,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-08-23 09:53:24,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:25,299 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-08-23 09:53:25,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099117990] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:25,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:25,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 28 [2024-08-23 09:53:25,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054756568] [2024-08-23 09:53:25,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:25,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-08-23 09:53:25,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:25,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-08-23 09:53:25,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2024-08-23 09:53:25,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:25,301 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:25,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.068965517241379) internal successors, (147), 28 states have internal predecessors, (147), 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 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:25,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:26,585 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 09:53:26,772 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 09:53:26,772 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:26,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1156794569, now seen corresponding path program 1 times [2024-08-23 09:53:26,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:26,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650131341] [2024-08-23 09:53:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 134 proven. 62 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-08-23 09:53:27,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650131341] [2024-08-23 09:53:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650131341] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708459591] [2024-08-23 09:53:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:27,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:27,164 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 09:53:27,165 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 09:53:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:27,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 17 conjunts are in the unsatisfiable core [2024-08-23 09:53:27,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 172 proven. 21 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-08-23 09:53:27,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 172 proven. 21 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-08-23 09:53:27,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708459591] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:27,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:27,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41 [2024-08-23 09:53:27,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801001315] [2024-08-23 09:53:27,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:27,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-23 09:53:27,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-23 09:53:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=1370, Unknown=0, NotChecked=0, Total=1722 [2024-08-23 09:53:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:27,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:27,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.190476190476191) internal successors, (218), 41 states have internal predecessors, (218), 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 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:27,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:28,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-23 09:53:28,393 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 09:53:28,393 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:28,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash 790811789, now seen corresponding path program 2 times [2024-08-23 09:53:28,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:28,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013675720] [2024-08-23 09:53:28,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:28,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 80 proven. 118 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-08-23 09:53:28,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013675720] [2024-08-23 09:53:28,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013675720] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036157398] [2024-08-23 09:53:28,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 09:53:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:28,818 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 09:53:28,819 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 09:53:28,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 09:53:28,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:29,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 17 conjunts are in the unsatisfiable core [2024-08-23 09:53:29,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 86 proven. 112 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-08-23 09:53:29,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 93 proven. 105 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-08-23 09:53:29,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036157398] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:29,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:29,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 36 [2024-08-23 09:53:29,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289586948] [2024-08-23 09:53:29,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:29,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-23 09:53:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-23 09:53:29,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1000, Unknown=0, NotChecked=0, Total=1332 [2024-08-23 09:53:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:29,540 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:29,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.513513513513513) internal successors, (167), 36 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:29,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:29,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:29,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:29,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:29,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:29,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-23 09:53:30,128 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 09:53:30,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 09:53:30,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 09:53:30,129 INFO L85 PathProgramCache]: Analyzing trace with hash 33133797, now seen corresponding path program 3 times [2024-08-23 09:53:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 09:53:30,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949575952] [2024-08-23 09:53:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 09:53:30,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 09:53:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 09:53:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 189 proven. 78 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-08-23 09:53:30,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 09:53:30,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949575952] [2024-08-23 09:53:30,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949575952] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 09:53:30,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565684907] [2024-08-23 09:53:30,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 09:53:30,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 09:53:30,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 09:53:30,603 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 09:53:30,604 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 09:53:30,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-23 09:53:30,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 09:53:30,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 35 conjunts are in the unsatisfiable core [2024-08-23 09:53:30,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 09:53:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-08-23 09:53:31,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 09:53:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 1 proven. 125 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-08-23 09:53:31,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565684907] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 09:53:31,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 09:53:31,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 9] total 36 [2024-08-23 09:53:31,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470701804] [2024-08-23 09:53:31,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 09:53:31,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-23 09:53:31,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 09:53:31,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-23 09:53:31,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1115, Unknown=0, NotChecked=0, Total=1332 [2024-08-23 09:53:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 09:53:31,569 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 09:53:31,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.243243243243243) internal successors, (194), 36 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 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 09:53:31,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.