./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-counter-fun.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-counter-fun.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-counter-fun.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 03:42:25,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 03:42:26,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 03:42:26,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 03:42:26,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 03:42:26,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 03:42:26,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 03:42:26,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 03:42:26,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 03:42:26,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 03:42:26,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 03:42:26,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 03:42:26,057 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 03:42:26,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 03:42:26,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 03:42:26,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 03:42:26,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 03:42:26,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 03:42:26,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 03:42:26,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 03:42:26,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 03:42:26,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 03:42:26,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 03:42:26,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 03:42:26,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 03:42:26,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 03:42:26,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 03:42:26,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 03:42:26,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 03:42:26,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 03:42:26,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 03:42:26,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 03:42:26,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 03:42:26,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 03:42:26,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 03:42:26,068 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 03:42:26,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 03:42:26,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 03:42:26,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 03:42:26,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 03:42:26,072 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 03:42:26,072 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 03:42:26,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-23 03:42:26,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 03:42:26,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 03:42:26,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 03:42:26,353 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 03:42:26,353 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 03:42:26,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-23 03:42:27,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 03:42:27,996 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 03:42:27,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-23 03:42:28,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1d05d5cb3/c6a272fcbb0744bab3916cd15c5751c0/FLAG045c68a3c [2024-08-23 03:42:28,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1d05d5cb3/c6a272fcbb0744bab3916cd15c5751c0 [2024-08-23 03:42:28,021 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 03:42:28,021 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 03:42:28,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-counter-fun.wvr.yml/witness.yml [2024-08-23 03:42:28,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 03:42:28,148 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 03:42:28,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 03:42:28,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 03:42:28,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 03:42:28,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 03:42:28" (1/2) ... [2024-08-23 03:42:28,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328a02ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 03:42:28, skipping insertion in model container [2024-08-23 03:42:28,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 03:42:28" (1/2) ... [2024-08-23 03:42:28,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e8f3e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 03:42:28, skipping insertion in model container [2024-08-23 03:42:28,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:42:28" (2/2) ... [2024-08-23 03:42:28,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328a02ce and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:42:28, skipping insertion in model container [2024-08-23 03:42:28,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:42:28" (2/2) ... [2024-08-23 03:42:28,159 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-23 03:42:28,164 INFO L92 edCorrectnessWitness]: Witness did not contain any usable entries. [2024-08-23 03:42:28,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 03:42:28,388 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-counter-fun.wvr.c[2707,2720] [2024-08-23 03:42:28,403 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 03:42:28,411 INFO L202 MainTranslator]: Completed pre-run [2024-08-23 03:42:28,435 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-counter-fun.wvr.c[2707,2720] [2024-08-23 03:42:28,438 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 03:42:28,455 INFO L206 MainTranslator]: Completed translation [2024-08-23 03:42:28,456 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 03:42:28 WrapperNode [2024-08-23 03:42:28,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 03:42:28,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 03:42:28,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 03:42:28,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 03:42:28,465 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,474 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,510 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 191 [2024-08-23 03:42:28,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 03:42:28,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 03:42:28,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 03:42:28,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 03:42:28,545 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,550 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,556 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,557 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,577 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,582 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,591 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,593 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 03:42:28,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 03:42:28,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 03:42:28,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 03:42:28,605 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 03:42:28" (1/1) ... [2024-08-23 03:42:28,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 03:42:28,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:28,662 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 03:42:28,665 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 03:42:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 03:42:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 03:42:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 03:42:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 03:42:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 03:42:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 03:42:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 03:42:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 03:42:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 03:42:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 03:42:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 03:42:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 03:42:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 03:42:28,702 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 03:42:28,816 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 03:42:28,819 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 03:42:29,227 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 03:42:29,227 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 03:42:29,508 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 03:42:29,508 INFO L319 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-23 03:42:29,508 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 03:42:29 BoogieIcfgContainer [2024-08-23 03:42:29,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 03:42:29,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 03:42:29,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 03:42:29,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 03:42:29,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 03:42:28" (1/4) ... [2024-08-23 03:42:29,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50621f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 03:42:29, skipping insertion in model container [2024-08-23 03:42:29,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 03:42:28" (2/4) ... [2024-08-23 03:42:29,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50621f15 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 03:42:29, skipping insertion in model container [2024-08-23 03:42:29,515 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 03:42:28" (3/4) ... [2024-08-23 03:42:29,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50621f15 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 03:42:29, skipping insertion in model container [2024-08-23 03:42:29,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 03:42:29" (4/4) ... [2024-08-23 03:42:29,517 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-08-23 03:42:29,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 03:42:29,537 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-23 03:42:29,537 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 03:42:29,589 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 03:42:29,635 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 03:42:29,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 03:42:29,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:29,638 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 03:42:29,640 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 03:42:29,675 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 03:42:29,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 03:42:29,691 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;@18b774a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 03:42:29,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-23 03:42:29,851 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 03:42:29,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1552661784, now seen corresponding path program 1 times [2024-08-23 03:42:29,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391490946] [2024-08-23 03:42:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:30,291 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 03:42:30,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391490946] [2024-08-23 03:42:30,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391490946] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 03:42:30,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 03:42:30,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-23 03:42:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822020654] [2024-08-23 03:42:30,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 03:42:30,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 03:42:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 03:42:30,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-23 03:42:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:30,327 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:30,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 03:42:30,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:30,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:30,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 03:42:30,468 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 03:42:30,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:30,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1962579677, now seen corresponding path program 1 times [2024-08-23 03:42:30,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:30,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412354203] [2024-08-23 03:42:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:30,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:30,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 03:42:30,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:30,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412354203] [2024-08-23 03:42:30,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412354203] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 03:42:30,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 03:42:30,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 03:42:30,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886689728] [2024-08-23 03:42:30,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 03:42:30,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 03:42:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 03:42:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 03:42:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:30,729 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:30,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 03:42:30,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:30,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-23 03:42:30,840 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 03:42:30,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1682096693, now seen corresponding path program 1 times [2024-08-23 03:42:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181289052] [2024-08-23 03:42:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 03:42:31,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181289052] [2024-08-23 03:42:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181289052] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 03:42:31,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 03:42:31,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 03:42:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31605362] [2024-08-23 03:42:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 03:42:31,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 03:42:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 03:42:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 03:42:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:31,041 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:31,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 03:42:31,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:31,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-23 03:42:31,108 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 03:42:31,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2090227909, now seen corresponding path program 1 times [2024-08-23 03:42:31,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:31,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037488217] [2024-08-23 03:42:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 03:42:31,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:31,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037488217] [2024-08-23 03:42:31,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037488217] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:31,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633357885] [2024-08-23 03:42:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:31,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:31,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:31,271 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 03:42:31,275 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 03:42:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:31,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 03:42:31,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 03:42:31,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:42:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 03:42:31,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633357885] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:42:31,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:42:31,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-08-23 03:42:31,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915348179] [2024-08-23 03:42:31,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:42:31,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-23 03:42:31,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:31,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-23 03:42:31,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-08-23 03:42:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:31,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:31,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 03:42:31,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:31,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-23 03:42:31,955 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 03:42:32,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:32,136 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 03:42:32,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1381665349, now seen corresponding path program 2 times [2024-08-23 03:42:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:32,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705166164] [2024-08-23 03:42:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 03:42:32,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:32,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705166164] [2024-08-23 03:42:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705166164] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537254614] [2024-08-23 03:42:32,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 03:42:32,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:32,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:32,452 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 03:42:32,453 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 03:42:32,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 03:42:32,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:42:32,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-23 03:42:32,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 03:42:32,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:42:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 03:42:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537254614] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:42:32,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:42:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 18 [2024-08-23 03:42:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379301371] [2024-08-23 03:42:32,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:42:32,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-23 03:42:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:32,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-23 03:42:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-08-23 03:42:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:32,877 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:32,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 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 03:42:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-23 03:42:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:33,393 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 03:42:33,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:33,580 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 03:42:33,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1978832265, now seen corresponding path program 3 times [2024-08-23 03:42:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:33,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718835211] [2024-08-23 03:42:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:33,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-08-23 03:42:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718835211] [2024-08-23 03:42:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718835211] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983484447] [2024-08-23 03:42:34,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 03:42:34,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:34,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:34,026 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 03:42:34,027 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 03:42:34,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-23 03:42:34,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:42:34,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-23 03:42:34,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-23 03:42:34,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:42:34,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-08-23 03:42:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-23 03:42:34,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983484447] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:42:34,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:42:34,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2024-08-23 03:42:34,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719940596] [2024-08-23 03:42:34,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:42:34,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-23 03:42:34,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-23 03:42:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-08-23 03:42:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:34,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:34,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 03:42:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:34,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:34,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:34,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:34,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:34,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-23 03:42:34,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:34,709 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 03:42:34,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:34,711 INFO L85 PathProgramCache]: Analyzing trace with hash -802771471, now seen corresponding path program 4 times [2024-08-23 03:42:34,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:34,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7129642] [2024-08-23 03:42:34,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:34,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 11 proven. 44 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-08-23 03:42:35,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7129642] [2024-08-23 03:42:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7129642] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717748927] [2024-08-23 03:42:35,632 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 03:42:35,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:35,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:35,634 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 03:42:35,635 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 03:42:35,760 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 03:42:35,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:42:35,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 36 conjunts are in the unsatisfiable core [2024-08-23 03:42:35,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-08-23 03:42:36,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:42:36,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 03:42:36,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 148 treesize of output 82 [2024-08-23 03:42:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-08-23 03:42:36,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717748927] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:42:36,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:42:36,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 26 [2024-08-23 03:42:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868299274] [2024-08-23 03:42:36,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:42:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-08-23 03:42:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:36,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-08-23 03:42:36,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-08-23 03:42:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:36,918 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:36,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2962962962962963) internal successors, (89), 26 states have internal predecessors, (89), 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 03:42:36,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:36,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:36,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:36,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:36,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:36,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:36,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 03:42:37,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-23 03:42:37,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-08-23 03:42:37,413 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 03:42:37,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1420490087, now seen corresponding path program 5 times [2024-08-23 03:42:37,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:37,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773015046] [2024-08-23 03:42:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:37,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 3 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 03:42:42,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773015046] [2024-08-23 03:42:42,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773015046] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970851067] [2024-08-23 03:42:42,322 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 03:42:42,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:42,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:42,324 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 03:42:42,327 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 03:42:42,512 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-08-23 03:42:42,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:42:42,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 41 conjunts are in the unsatisfiable core [2024-08-23 03:42:42,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:44,025 INFO L349 Elim1Store]: treesize reduction 271, result has 32.4 percent of original size [2024-08-23 03:42:44,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 288 treesize of output 201 [2024-08-23 03:42:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 17 proven. 50 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-23 03:42:44,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:42:45,266 INFO L349 Elim1Store]: treesize reduction 262, result has 31.2 percent of original size [2024-08-23 03:42:45,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 327 treesize of output 205 [2024-08-23 03:42:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 19 proven. 48 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-23 03:42:45,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970851067] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 03:42:45,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 03:42:45,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 35 [2024-08-23 03:42:45,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776543733] [2024-08-23 03:42:45,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 03:42:45,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-08-23 03:42:45,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 03:42:45,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-08-23 03:42:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2024-08-23 03:42:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:45,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 03:42:45,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.111111111111111) internal successors, (112), 35 states have internal predecessors, (112), 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 03:42:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:45,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:45,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:45,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:45,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:45,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 03:42:45,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 03:42:46,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 03:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 03:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-23 03:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 03:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 03:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 03:42:46,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-23 03:42:46,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:46,574 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 03:42:46,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 03:42:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1335171909, now seen corresponding path program 6 times [2024-08-23 03:42:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 03:42:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584992589] [2024-08-23 03:42:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 03:42:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 03:42:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 03:42:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 9 proven. 139 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-23 03:42:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 03:42:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584992589] [2024-08-23 03:42:53,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584992589] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 03:42:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581838034] [2024-08-23 03:42:53,840 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 03:42:53,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 03:42:53,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 03:42:53,842 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 03:42:53,845 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 03:42:54,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-08-23 03:42:54,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 03:42:54,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 78 conjunts are in the unsatisfiable core [2024-08-23 03:42:54,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 03:42:54,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-23 03:42:57,978 INFO L349 Elim1Store]: treesize reduction 703, result has 12.9 percent of original size [2024-08-23 03:42:57,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 22 new quantified variables, introduced 78 case distinctions, treesize of input 488 treesize of output 182 [2024-08-23 03:42:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 14 proven. 128 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-23 03:42:58,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 03:43:29,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 03:43:29,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15665 treesize of output 14305 Killed by 15