./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-figure3.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-figure3.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-figure3.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 03:43:45,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 03:43:45,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 03:43:45,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 03:43:45,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 03:43:45,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 03:43:45,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 03:43:45,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 03:43:45,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 03:43:45,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 03:43:45,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 03:43:45,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 03:43:45,388 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 03:43:45,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 03:43:45,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 03:43:45,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 03:43:45,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 03:43:45,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 03:43:45,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 03:43:45,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 03:43:45,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 03:43:45,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 03:43:45,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 03:43:45,395 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 03:43:45,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 03:43:45,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 03:43:45,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 03:43:45,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 03:43:45,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 03:43:45,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 03:43:45,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 03:43:45,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 03:43:45,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 03:43:45,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 03:43:45,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 03:43:45,401 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 03:43:45,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 03:43:45,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 03:43:45,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 03:43:45,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 03:43:45,405 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 03:43:45,406 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 03:43:45,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-23 03:43:45,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 03:43:45,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 03:43:45,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 03:43:45,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 03:43:45,708 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 03:43:45,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-08-23 03:43:47,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 03:43:47,398 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 03:43:47,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-08-23 03:43:47,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b5ce7be8/08353aa3568d4535b6bfbafc26785b46/FLAGa4547ed64 [2024-08-23 03:43:47,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b5ce7be8/08353aa3568d4535b6bfbafc26785b46 [2024-08-23 03:43:47,434 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 03:43:47,435 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 03:43:47,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-figure3.wvr.yml/witness.yml [2024-08-23 03:43:47,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 03:43:47,529 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 03:43:47,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 03:43:47,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 03:43:47,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 03:43:47,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 03:43:47" (1/2) ... [2024-08-23 03:43:47,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ed6d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 03:43:47, skipping insertion in model container [2024-08-23 03:43:47,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 03:43:47" (1/2) ... [2024-08-23 03:43:47,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72b66e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 03:43:47, skipping insertion in model container [2024-08-23 03:43:47,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:43:47" (2/2) ... [2024-08-23 03:43:47,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ed6d7f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47, skipping insertion in model container [2024-08-23 03:43:47,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:43:47" (2/2) ... [2024-08-23 03:43:47,543 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-23 03:43:47,546 INFO L92 edCorrectnessWitness]: Witness did not contain any usable entries. [2024-08-23 03:43:47,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 03:43:47,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2147,2160] [2024-08-23 03:43:47,747 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 03:43:47,755 INFO L202 MainTranslator]: Completed pre-run [2024-08-23 03:43:47,777 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2147,2160] [2024-08-23 03:43:47,778 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 03:43:47,795 INFO L206 MainTranslator]: Completed translation [2024-08-23 03:43:47,796 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47 WrapperNode [2024-08-23 03:43:47,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 03:43:47,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 03:43:47,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 03:43:47,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 03:43:47,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,838 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-08-23 03:43:47,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 03:43:47,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 03:43:47,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 03:43:47,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 03:43:47,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 03:43:47,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 03:43:47,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 03:43:47,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 03:43:47,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (1/1) ... [2024-08-23 03:43:47,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 03:43:47,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:43:47,921 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 03:43:47,925 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 03:43:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 03:43:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 03:43:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 03:43:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 03:43:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 03:43:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 03:43:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 03:43:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 03:43:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 03:43:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 03:43:47,963 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 03:43:48,061 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 03:43:48,063 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 03:43:48,261 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 03:43:48,263 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 03:43:48,457 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 03:43:48,457 INFO L319 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-23 03:43:48,458 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 03:43:48 BoogieIcfgContainer [2024-08-23 03:43:48,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 03:43:48,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 03:43:48,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 03:43:48,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 03:43:48,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 03:43:47" (1/4) ... [2024-08-23 03:43:48,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b710377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 03:43:48, skipping insertion in model container [2024-08-23 03:43:48,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:43:47" (2/4) ... [2024-08-23 03:43:48,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b710377 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 03:43:48, skipping insertion in model container [2024-08-23 03:43:48,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:43:47" (3/4) ... [2024-08-23 03:43:48,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b710377 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 03:43:48, skipping insertion in model container [2024-08-23 03:43:48,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 03:43:48" (4/4) ... [2024-08-23 03:43:48,472 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2024-08-23 03:43:48,492 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 03:43:48,492 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-23 03:43:48,492 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 03:43:48,554 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 03:43:48,608 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 03:43:48,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 03:43:48,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:43:48,611 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 03:43:48,612 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 03:43:48,648 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 03:43:48,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 03:43:48,673 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;@cd64489, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 03:43:48,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-23 03:43:48,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:43:48,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:43:48,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1468535759, now seen corresponding path program 1 times [2024-08-23 03:43:48,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:43:48,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610607751] [2024-08-23 03:43:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:43:48,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:43:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:43:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:43:49,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610607751] [2024-08-23 03:43:49,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610607751] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 03:43:49,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 03:43:49,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-23 03:43:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36300640] [2024-08-23 03:43:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 03:43:49,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 03:43:49,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:43:49,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 03:43:49,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-23 03:43:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:49,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:43:49,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 03:43:49,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:49,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 03:43:49,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:43:49,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:43:49,428 INFO L85 PathProgramCache]: Analyzing trace with hash 438763244, now seen corresponding path program 1 times [2024-08-23 03:43:49,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:43:49,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092189848] [2024-08-23 03:43:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:43:49,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:43:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:43:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:43:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092189848] [2024-08-23 03:43:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092189848] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:43:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042526981] [2024-08-23 03:43:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:43:49,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:43:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:43:49,827 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 03:43:49,843 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 03:43:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:43:49,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-23 03:43:49,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:43:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:50,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:43:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:50,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042526981] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:43:50,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:43:50,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-08-23 03:43:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331128009] [2024-08-23 03:43:50,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:43:50,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-23 03:43:50,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:43:50,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-23 03:43:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-08-23 03:43:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:50,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:43:50,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 03:43:50,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:50,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-08-23 03:43:50,771 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 03:43:50,956 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,SelfDestructingSolverStorable1 [2024-08-23 03:43:50,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:43:50,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:43:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1137837116, now seen corresponding path program 2 times [2024-08-23 03:43:50,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:43:50,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447686890] [2024-08-23 03:43:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:43:50,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:43:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:43:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 03:43:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:43:51,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447686890] [2024-08-23 03:43:51,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447686890] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:43:51,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474807835] [2024-08-23 03:43:51,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 03:43:51,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:43:51,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:43:51,160 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 03:43:51,177 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 03:43:51,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 03:43:51,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:43:51,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-23 03:43:51,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:43:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-08-23 03:43:51,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:43:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-08-23 03:43:51,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474807835] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:43:51,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:43:51,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2024-08-23 03:43:51,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744463601] [2024-08-23 03:43:51,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:43:51,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 03:43:51,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:43:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 03:43:51,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-08-23 03:43:51,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:51,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:43:51,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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 03:43:51,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:51,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-08-23 03:43:51,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:43:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:43:51,664 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 03:43:51,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:43:51,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:43:51,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:43:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1532910741, now seen corresponding path program 3 times [2024-08-23 03:43:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:43:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891667052] [2024-08-23 03:43:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:43:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:43:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:43:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 43 proven. 52 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-23 03:43:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:43:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891667052] [2024-08-23 03:43:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891667052] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:43:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977233306] [2024-08-23 03:43:52,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 03:43:52,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:43:52,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:43:52,174 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 03:43:52,175 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 03:43:52,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-08-23 03:43:52,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:43:52,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 30 conjunts are in the unsatisfiable core [2024-08-23 03:43:52,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:43:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:52,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:43:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:43:53,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977233306] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:43:53,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:43:53,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2024-08-23 03:43:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374601646] [2024-08-23 03:43:53,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:43:53,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-23 03:43:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:43:53,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-23 03:43:53,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1058, Unknown=0, NotChecked=0, Total=1260 [2024-08-23 03:43:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:43:53,552 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:43:53,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5277777777777777) internal successors, (127), 36 states have internal predecessors, (127), 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 03:43:53,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:43:53,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:43:53,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:43:53,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:44:02,479 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 40 DAG size of output: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:44:09,595 WARN L293 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 43 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:44:18,492 WARN L293 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 43 DAG size of output: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:44:20,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:44:22,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:44:33,120 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 46 DAG size of output: 41 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:44:35,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:44:48,344 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 50 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:44:49,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:44:59,864 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 50 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:45:08,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:45:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:45:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:45:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:45:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-08-23 03:45:54,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-23 03:45:54,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:45:54,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:45:54,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:45:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1055267155, now seen corresponding path program 4 times [2024-08-23 03:45:54,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:45:54,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520296845] [2024-08-23 03:45:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:45:54,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:45:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:45:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-08-23 03:45:55,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:45:55,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520296845] [2024-08-23 03:45:55,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520296845] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:45:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775902355] [2024-08-23 03:45:55,373 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 03:45:55,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:45:55,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:45:55,375 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 03:45:55,376 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 03:45:55,442 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 03:45:55,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:45:55,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 38 conjunts are in the unsatisfiable core [2024-08-23 03:45:55,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:45:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:45:55,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:45:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:45:56,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775902355] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:45:56,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:45:56,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 21] total 45 [2024-08-23 03:45:56,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224304402] [2024-08-23 03:45:56,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:45:56,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-08-23 03:45:56,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:45:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-08-23 03:45:56,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1676, Unknown=0, NotChecked=0, Total=1980 [2024-08-23 03:45:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:45:56,743 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:45:56,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 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 03:45:56,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:45:56,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:45:56,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:45:56,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2024-08-23 03:45:56,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:12,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:46:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:23,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-23 03:46:23,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:46:23,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:46:23,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:46:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1823861206, now seen corresponding path program 5 times [2024-08-23 03:46:23,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:46:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885728021] [2024-08-23 03:46:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:46:23,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:46:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:46:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-08-23 03:46:24,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:46:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885728021] [2024-08-23 03:46:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885728021] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:46:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034044606] [2024-08-23 03:46:24,721 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 03:46:24,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:46:24,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:46:24,723 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 03:46:24,724 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 03:46:25,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-08-23 03:46:25,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:46:25,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 58 conjunts are in the unsatisfiable core [2024-08-23 03:46:25,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:46:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:46:25,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:46:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:46:27,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034044606] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:46:27,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:46:27,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 31, 31] total 66 [2024-08-23 03:46:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581238784] [2024-08-23 03:46:27,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:46:27,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-08-23 03:46:27,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:46:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-08-23 03:46:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=3670, Unknown=0, NotChecked=0, Total=4290 [2024-08-23 03:46:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:27,363 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:46:27,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.227272727272727) internal successors, (213), 66 states have internal predecessors, (213), 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 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:46:32,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-23 03:46:32,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:46:32,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:46:32,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:46:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash -856372727, now seen corresponding path program 6 times [2024-08-23 03:46:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:46:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572562682] [2024-08-23 03:46:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:46:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:46:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:46:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 924 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2024-08-23 03:46:33,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:46:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572562682] [2024-08-23 03:46:33,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572562682] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:46:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185378669] [2024-08-23 03:46:33,882 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 03:46:33,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:46:33,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:46:33,885 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 03:46:33,887 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 03:46:34,762 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2024-08-23 03:46:34,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:46:34,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 93 conjunts are in the unsatisfiable core [2024-08-23 03:46:34,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:46:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 914 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-08-23 03:46:34,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:46:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 914 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-08-23 03:46:35,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185378669] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:46:35,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:46:35,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2024-08-23 03:46:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763410630] [2024-08-23 03:46:35,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:46:35,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-23 03:46:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:46:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-23 03:46:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-08-23 03:46:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:35,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:46:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:46:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:46:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 03:46:36,785 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 03:46:36,966 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,SelfDestructingSolverStorable6 [2024-08-23 03:46:36,967 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:46:36,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:46:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash -557568478, now seen corresponding path program 7 times [2024-08-23 03:46:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:46:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320019807] [2024-08-23 03:46:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:46:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:46:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:46:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 134 proven. 1247 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 03:46:39,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:46:39,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320019807] [2024-08-23 03:46:39,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320019807] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:46:39,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048492468] [2024-08-23 03:46:39,257 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-23 03:46:39,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:46:39,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:46:39,258 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 03:46:39,259 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 03:46:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:46:39,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 82 conjunts are in the unsatisfiable core [2024-08-23 03:46:39,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:46:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 154 proven. 1225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 03:46:40,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:46:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 154 proven. 1225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 03:46:43,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048492468] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:46:43,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:46:43,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 43, 43] total 91 [2024-08-23 03:46:43,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388553744] [2024-08-23 03:46:43,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:46:43,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-08-23 03:46:43,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:46:43,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-08-23 03:46:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=6955, Unknown=0, NotChecked=0, Total=8190 [2024-08-23 03:46:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:46:43,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:46:43,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.1538461538461537) internal successors, (287), 91 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:46:43,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:46:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 03:46:43,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:47:13,541 WARN L293 SmtUtils]: Spent 19.85s on a formula simplification. DAG size of input: 83 DAG size of output: 68 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:47:39,920 WARN L293 SmtUtils]: Spent 21.48s on a formula simplification. DAG size of input: 87 DAG size of output: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:47:41,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:47:43,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:47:47,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:47:49,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:47:51,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:47:53,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:48:16,280 WARN L293 SmtUtils]: Spent 17.89s on a formula simplification. DAG size of input: 88 DAG size of output: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:48:40,930 WARN L293 SmtUtils]: Spent 18.35s on a formula simplification. DAG size of input: 92 DAG size of output: 82 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:49:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 03:49:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-08-23 03:49:29,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-23 03:49:29,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:49:29,970 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 03:49:29,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:49:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 926338918, now seen corresponding path program 8 times [2024-08-23 03:49:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:49:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797291485] [2024-08-23 03:49:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:49:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:49:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:49:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 206 proven. 3143 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 03:49:34,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:49:34,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797291485] [2024-08-23 03:49:34,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797291485] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:49:34,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562009755] [2024-08-23 03:49:34,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 03:49:34,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:49:34,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:49:34,316 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 03:49:34,318 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 03:49:34,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 03:49:34,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:49:34,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 130 conjunts are in the unsatisfiable core [2024-08-23 03:49:34,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:49:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 238 proven. 3109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 03:49:35,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:49:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 238 proven. 3109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 03:49:44,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562009755] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:49:44,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:49:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 67, 67] total 139 [2024-08-23 03:49:44,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410398175] [2024-08-23 03:49:44,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:49:44,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2024-08-23 03:49:44,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:49:44,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2024-08-23 03:49:44,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3059, Invalid=16123, Unknown=0, NotChecked=0, Total=19182 [2024-08-23 03:49:44,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:49:44,421 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:49:44,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 3.1007194244604315) internal successors, (431), 139 states have internal predecessors, (431), 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 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 03:49:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2024-08-23 03:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:52:27,091 WARN L293 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 167 DAG size of output: 143 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:54:57,505 WARN L293 SmtUtils]: Spent 1.11m on a formula simplification. DAG size of input: 171 DAG size of output: 149 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:54:59,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:01,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:03,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:05,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:07,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:09,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:11,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:12,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:14,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:16,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:18,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:20,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:22,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:25,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:27,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:29,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:31,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:33,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:35,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:37,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:39,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:41,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:55:43,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:20,507 WARN L293 SmtUtils]: Spent 45.11s on a formula simplification. DAG size of input: 169 DAG size of output: 145 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-08-23 03:57:22,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:23,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:29,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:30,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:32,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:34,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:35,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:39,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-23 03:57:40,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15